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winegar
02-12-2011, 05:52 PM
Well guys, I’m taking the plunge, dropping the dough, and starting my low budget 4x4 Plasma table build!!! I have been working on the table for a few days on and off now… and starting to show some progress… at least some I can show to others anyways… lol…

I hope no one minds and going to post links to where I got my supplies as I go along… None of which is my sites or promoting anything for myself… Just trying to help other starting out like me!... If I’m breaking a rule here… Please let me know!

I am going to be using the “PlasmaBot” by NoSleepStudio… a local guy here on the “Zone”…. UserName: tulsaturbo…. Through him I sourced all my gantry ends, carriages, stepper motor mounting plates, & build source sheet from him… Pretty much an entire kit already cut and put together and ready to go… Just add table and electronics!... A link to his site… NoSleep Studio (http://www.needfulthings.net/host/nosleep/studio/index.php?cPath=31)

I purchased my 23 nema 420oz. Steppers, Driver board, and Cable Track from Brent Hubbard… A cnc supply store on ebay…Might be on here as well… I’m unsure… Really good deals on cheap electronics to get me started!... A link to his auction store… HUBBARD CNC INC items - Get great deals on POWER SUPPLY WALL TRANSFORMER, LOVEJOY DRIVE COUPLINGS items on eBay Stores! (http://stores.ebay.com/HUBBARD-CNC-INC)

I would like to say up front, I know my garage is a mess. It has been on average about 15F degrees +/- for the last few months… very cold and takes so long to heat the place up, so less time to clean for now… I should have gotten my trailer all loaded up before the snow hit and before putting in it storage for the winter… Space is limited for now, new garage coming in the summer!...

http://i968.photobucket.com/albums/ae170/warchildzx7/CNC%20Plasma%20Table%20Build/Stock3.jpg


http://i968.photobucket.com/albums/ae170/warchildzx7/CNC%20Plasma%20Table%20Build/Stock2.jpg


http://i968.photobucket.com/albums/ae170/warchildzx7/CNC%20Plasma%20Table%20Build/Stock1.jpg

winegar
02-12-2011, 05:55 PM
I had my local yard cut all my steel to length for me, making my life a little easier! All of my 1x2” & 2x2” steel has a wall thickness of 0.110… Nice, thick and heavy!... Learning as I go along!

Steel Table Cut list: Total cost ($165)

2) 1x2x56”........Top Rails
2) 1x2x44”........Side Bottom Rail
2) 1x2x56.5”......Front Bottom Rail

2) 2x2x56.5”.......Top Cutting Area
2) 2x2x44”.........Top Cutting Area
4) 2x2x35”..........Legs

1) 6x6 3/8..........Wheel/Feet Supports




http://i968.photobucket.com/albums/ae170/warchildzx7/CNC%20Plasma%20Table%20Build/Ends1.jpg


http://i968.photobucket.com/albums/ae170/warchildzx7/CNC%20Plasma%20Table%20Build/Ends2.jpg

http://i968.photobucket.com/albums/ae170/warchildzx7/CNC%20Plasma%20Table%20Build/Frameup1.jpg

winegar
02-12-2011, 06:06 PM
Had a hard time finding a way to keep everything together to check for squareness... I do a bit of quick welding from time to time... but nothing that had to be this precise... So, I spent quite a bit of time framing it all up.... tacking it... measuring, time and time again... It was not too bad though, after making my first tack weld... I never had to grind any and re-weld a thing!

http://i968.photobucket.com/albums/ae170/warchildzx7/CNC%20Plasma%20Table%20Build/Frameup2.jpg


http://i968.photobucket.com/albums/ae170/warchildzx7/CNC%20Plasma%20Table%20Build/Frameup3.jpg


http://i968.photobucket.com/albums/ae170/warchildzx7/CNC%20Plasma%20Table%20Build/Frameup4.jpg


http://i968.photobucket.com/albums/ae170/warchildzx7/CNC%20Plasma%20Table%20Build/Frameup5.jpg

winegar
02-12-2011, 06:10 PM
With the extra long top Rails.... some will be trimmed off once the rails arrive for my X & Y Axis.... Top rails should end up being 55" long... Does anyone know where to find those nifty plastic caps to cap off the ends of 1x2" and 2x2" tubing???....

Kentuckyfarmer
02-12-2011, 07:01 PM
Try McMaster Carr they have about everything you can need.
Mike

winegar
02-12-2011, 08:43 PM
I'll check that out thanks!...

winegar
02-12-2011, 08:44 PM
a few more of the progress....

http://i968.photobucket.com/albums/ae170/warchildzx7/CNC%20Plasma%20Table%20Build/Frameup7.jpg


http://i968.photobucket.com/albums/ae170/warchildzx7/CNC%20Plasma%20Table%20Build/Frameup6.jpg

winegar
02-13-2011, 08:15 AM
http://i968.photobucket.com/albums/ae170/warchildzx7/CNC%20Plasma%20Table%20Build/Frameup8.jpg


http://i968.photobucket.com/albums/ae170/warchildzx7/CNC%20Plasma%20Table%20Build/Frameup9.jpg


http://i968.photobucket.com/albums/ae170/warchildzx7/CNC%20Plasma%20Table%20Build/Frameup10.jpg

winegar
02-13-2011, 07:01 PM
Well, got some painting done..... starting to look like a table now.... Need to light sand her a bit more and make another pass or two.... I did not realize how much paint was in the air until i opened the garage door!... :-D

http://i968.photobucket.com/albums/ae170/warchildzx7/CNC%20Plasma%20Table%20Build/Paint1.jpg


http://i968.photobucket.com/albums/ae170/warchildzx7/CNC%20Plasma%20Table%20Build/Paint2.jpg


http://i968.photobucket.com/albums/ae170/warchildzx7/CNC%20Plasma%20Table%20Build/Paint3.jpg


http://i968.photobucket.com/albums/ae170/warchildzx7/CNC%20Plasma%20Table%20Build/Paint4.jpg


http://i968.photobucket.com/albums/ae170/warchildzx7/CNC%20Plasma%20Table%20Build/Paint6.jpg

winegar
02-13-2011, 07:05 PM
I checked her time and time again for squareness and measured diagonally from every angle.... she is true in every way.. except for literally 1mm off on the top rails... but my extrusion V-rails will take that out when i mount it...

winegar
02-13-2011, 07:49 PM
I got all my electronics from Hubbard CNC in the mail and all checked out!…. Brent and his wife were great to deal with and was very understanding of a novice like myself… Was even kind enough to send me detailed information on the Driver Board that I ended up going with and gave me several printouts on how to set the Board up… and not to mention they did test videos of MY board working before they sent it to me, with setup files all ready to go… I did not have to change pretty much anything about my settings…. Just drop the file they for me in place in Mach3 and she was up and running!… That is good service!... Will be buying more from these guys in the future, for my cnc mini-lathe later!...

Will post up a few photos of my electronics…. I went with the TB6560 Toshiba board, (4) 420oz Nema 23 steppers, 50’ of 18ga shielded wire (hope that’s enough!) and a 30volt 8.5amp Power Supply…. All from Hubbard…
Everything in the package shipped: Total cost ($365)




http://i968.photobucket.com/albums/ae170/warchildzx7/CNC%20Plasma%20Table%20Build/PowerSupply.jpg


http://i968.photobucket.com/albums/ae170/warchildzx7/CNC%20Plasma%20Table%20Build/DriverBoard.jpg


http://i968.photobucket.com/albums/ae170/warchildzx7/CNC%20Plasma%20Table%20Build/Steppers.jpg

winegar
02-13-2011, 08:19 PM
Will try and get more up tomorrow!

Boogiemanz1
02-13-2011, 11:47 PM
Great progress........jm

winegar
02-14-2011, 03:33 PM
Thanks!.... a few photos of the V-bearings.... 2 eccentric bushings and the others that i made on the lathe... I made them exactly as the eccentric bushings without the offset.. This way i can keep the same 1/4-20 bolts throughout the machine.... They have a very snug fit just like the eccentric bushings as well and needed to press them in place with my shop press.... nice clean fit!


http://i968.photobucket.com/albums/ae170/warchildzx7/CNC%20Plasma%20Table%20Build/V-Bearings1.jpg

http://i968.photobucket.com/albums/ae170/warchildzx7/CNC%20Plasma%20Table%20Build/V-Bearings2.jpg

http://i968.photobucket.com/albums/ae170/warchildzx7/CNC%20Plasma%20Table%20Build/V-BearingsBushings.jpg

winegar
02-14-2011, 03:35 PM
Quick bench test!.... http://i968.photobucket.com/albums/ae170/warchildzx7/CNC%20Plasma%20Table%20Build/th_Benchtestmovie.jpg (http://s968.photobucket.com/albums/ae170/warchildzx7/CNC%20Plasma%20Table%20Build/?action=view&current=Benchtestmovie.mp4)

winegar
02-14-2011, 04:50 PM
Well, I got confirmation and tracking # for my V-rails and were shipped out today... They are coming from only 1 state away... UPS... so, I'm hoping to have them either tomorrow (tuesday) or the next day... Much faster than what I was told!...

A few new photo's for you guys, loose fit to see how it all is going to work!... My PlasmaBot Kit.... Got the steppers all mounted up, testing everything all out... Today I got the heavy duty springs (on the bolts) and the ones for the tension, as well as my rack and pinion's ordered. I just wanted to test fit everything with what i had!... I honestly though i had more time before my V-rails were to be shipped, and was waiting for some dumb reason to order my last few parts... but, surprise!...

Now, I measured every for my rails like 30 times... and took in every variable that i could imagine that would happen. Just to make sure if they sent by mistake, a slightly longer or even shorter gantry V-rail... That i will not have to cut it... or change a thing with my table.... Remember the bushings that I made on the lathe for the gantry carriage?... Well I made the same ones for my X-axis and they are all EXACTLY the same... (4) for my X-axis carriages.... and (2) for my gantry Y-axis (other two are eccentric).... For the X-axis carriages, instead of using washers or etc, I will make 4 spacers for the other side of the V-bearing once my rails are here...If for some reason the Gantry V-rail is off at all.... I can just flip that bushing/bearing around to the dust shield side of my carriages and machine the (4) bushings to make up for the difference in the length of the V-rail.... make since?... If they cut my rail spot on.... I will just make up 4 spacers with 1/4 holes in the center that are going between the bearing and the black dust shield!....


http://i968.photobucket.com/albums/ae170/warchildzx7/CNC%20Plasma%20Table%20Build/PlasmaBot1.jpg


http://i968.photobucket.com/albums/ae170/warchildzx7/CNC%20Plasma%20Table%20Build/PlasmaBot3.jpg


http://i968.photobucket.com/albums/ae170/warchildzx7/CNC%20Plasma%20Table%20Build/PlasmaBot4.jpg


http://i968.photobucket.com/albums/ae170/warchildzx7/CNC%20Plasma%20Table%20Build/PlasmaBot5.jpg

Galtor
02-14-2011, 07:54 PM
How do you like the Harbor Freight Plasma cutter?
Are you going to use that for your CNC torch?

winegar
02-14-2011, 08:26 PM
Keen eye!... I have put an hour or two of use on it... cuts just like a plasma cutter!... Or... a hot knife through butter!.. I know that the duty cycle is not that of a higher dollar unit... but I will not be cutting anything thicker than 3/8... and most of the time,1/4" or thinner.... so, duty cycle should not really come into play... If i have to cut through something elaborate and time consuming then I can hit the "pause" button for a bit and come back to it... This will not be a production machine by any means... just cutting parts for myself for my vehicles and some friends!...

Cant really beat the price either!...

Galtor
02-14-2011, 09:37 PM
I really like your approach to this build. I was checking out the Hubbard site and could not find the 30v 8.5 amp power supply. Did you contact them by phone or e-mail.I think I am going to start a build next week, and so far want to follow your lead!:wave:

winegar
02-14-2011, 10:19 PM
Their 30v 8.5amp power supply is not listed... Send them an email... I will PM you the email address!... Thanks for the kind words!

I just finished the 3rd coat of paint on the table.... tomorrow... I will flip it over and do a few coats from under.... as all the paint i have put on has been shooting it from above and shooting up on the underside... I dont want it to rust and i would like it to stay as clean as i can... and rusty metal is not clean!...

panozeng
02-14-2011, 11:05 PM
Winegar - where did you order your V rail from? How expensive was it?

winegar
02-15-2011, 07:57 AM
Figure about $0.09 per mm for the Gantry Rail AAG... and about $0.06 per mm for the x-axis AAS Rails.... Total rail cost for my 1400mm x 1582mm rails... ($355 shipped)

winegar
02-15-2011, 05:51 PM
Guess what I found on the door step today.....

http://i968.photobucket.com/albums/ae170/warchildzx7/CNC%20Plasma%20Table%20Build/Packages.jpg

winegar
02-15-2011, 05:53 PM
Yeap, you guess it.... McMaster I received overnight as well as PBC once they shipped!.... Now, I'm waiting on my bolts to attach my X-rails... about 2 days out at this point...

I was not real thrilled with McMaster on that tube they sent... There were no packaging inside and my 3 Gear Racks where just tossed in the box... They are solid steel and all... but a little foam or cushion of some type would be nice... Since, i'm sure UPS handled it with kid gloves the whole way!...hahahah... yea!... I know they should be a little dirty with grease and all... to keep from rusting... but there were dirt and a bunch of other stuff, not to mention a dead spider on them right from the tube... Not a big deal... But i just dropped $180 with them... It will clean up all the same... but just saying!...

http://i968.photobucket.com/albums/ae170/warchildzx7/CNC%20Plasma%20Table%20Build/Y-GantryRail.jpg


http://i968.photobucket.com/albums/ae170/warchildzx7/CNC%20Plasma%20Table%20Build/X-Rail.jpg

winegar
02-15-2011, 10:44 PM
I should have lots of photos up tomorrow (Wed) night!!!

zool
02-16-2011, 12:48 AM
Here is a build of a RouterBot [Shop Droid] from nosleepstudio:

http://www.cnczone.com/forums/cnc_wood_router_project_log/121556-shopdroid_%5Bcustom_sized%5D.html#post897403

This is a custom sized machine as well: 4-feet by 7-feet.

You have a nice design and fabrication of the base!

winegar
02-16-2011, 07:37 AM
http://i968.photobucket.com/albums/ae170/warchildzx7/CNC%20Plasma%20Table%20Build/Pinion.jpg


Limit switches... $10 shipped for (10) of them!... 8 day delivery, not bad!

http://i968.photobucket.com/albums/ae170/warchildzx7/CNC%20Plasma%20Table%20Build/Limitswitches.jpg

MetalHead6263
02-16-2011, 09:28 AM
Great detailed pictures ! .What size rack and pinion are you using ? Also how are you going to attach the rack gear to the gantry and table ? :cheers:

plain ol Bill
02-16-2011, 07:03 PM
Winegear what was your source and info about the alum. extrusion w/ the rails already installed on them? I have never seen that before.

winegar
02-16-2011, 07:34 PM
The Rails are made from a company named PCBLinear ... You must order from a distributor... as they wont sell to you direct... Here in town they have 3 different places you can order from.... You can give them a call and they will be able to tell you who your supplier would be!...

winegar
02-16-2011, 11:21 PM
Here is a quick photo of my Gantry mocked up... and yea, i know.... the table cloth, red cushions and the drapes look like a 50's whore house... my wife loves it for some god knows why reason!...

http://i968.photobucket.com/albums/ae170/warchildzx7/CNC%20Plasma%20Table%20Build/Gantry.jpg

zool
02-17-2011, 01:42 PM
Your wife let you build your gantry on HER table.

Please share your secret.

plain ol Bill
02-17-2011, 07:41 PM
Thanks for the reply winegear. If I had seen those extrusions with built in rails I might have done things differently on my build. I put a link to their site in my files.

winegar
02-17-2011, 11:16 PM
Hahah.. yea, she is away for a few days.... If she were to see this photo.. boy, i would be in for it!

A bunch of photo's to follow tomorrow... Made good progress today between work and play...

MetalHead6263
02-18-2011, 02:30 PM
Great detailed pictures ! .What size rack and pinion are you using ?

Also how are you going to attach the rack gear to the gantry and table ?

Also could you explain exactly where you used the concentric bushings and where you used the e centric bushings ?

winegar
02-18-2011, 04:06 PM
Thanks!... I have most of my holes on the top rails drilled and tapped right now... I have about 8-9 holes left... Heading out to dinner with the wife (she's back! :-) ... then finishing up the X-axis rails and mounting everything up for a test fit... Check back tonight for more photos as I'll have at least 4-5 up then!...

1/2" Rack...

Concentric all around, except for two Eccentric on the Y-axis....

MetalHead6263
02-18-2011, 06:24 PM
Where did you place the 2 ecentric bushings on the y axis ? Sorry I m js starting a similar build .

winegar
02-18-2011, 11:08 PM
Here are a few photos... Got the rails all drilled and tapped today... Will try and get the gear rack's mounted tomorrow... That will take some time as the racks are very dirty as stated earlier!...

Here are a few photos of the centering jig i made to make sure, after clamping down the rails in the exact place i need them... To just start a centering point for my larger drill bits.... I tried to make one just so my center punch would make a dimple, but there were not enough room to make a full strike with it... So, i improvised and made this... crude, but works!... Next time, I think i will drill and tap on a friends mill, that would have been so much better, easier, and faster... If only i had my rails when i started the build!...

http://i968.photobucket.com/albums/ae170/warchildzx7/CNC%20Plasma%20Table%20Build/CenteringTool1.jpg


http://i968.photobucket.com/albums/ae170/warchildzx7/CNC%20Plasma%20Table%20Build/CenteringTool2.jpg



Couple of photos of the gantry laid into place!...
http://i968.photobucket.com/albums/ae170/warchildzx7/CNC%20Plasma%20Table%20Build/GantryMounted1.jpg


http://i968.photobucket.com/albums/ae170/warchildzx7/CNC%20Plasma%20Table%20Build/GantryMounted2-1.jpg

Galtor
02-19-2011, 07:29 AM
Wow! You have made unreal progress! Working on this part time, not to mention the time you have taken to share your progress as well as help members like me with their unlimited questions! You have inspired me and I hope to document my progress as well. I will pick up the cut steel today. I hope to be welding on the table by tonight. I will keep you posted, and ask a few more questions.
Thanks :cheers:again,
G

winegar
02-19-2011, 10:26 PM
I'm still trying to make up my mind on the Z-axis.... Need to decide soon!...

winegar
02-20-2011, 10:28 PM
Here are a few photos.... I got a lot done today... Was off work and had a few hours i could spend trying to get more of this project finished... The gantry sits on the rails square and makes perfect contact in the v-bearings... rolls very smoothly & with creative placement of the gear rack's... I have 100% use of my 4x4' cutting area...

Carriages ready to be mounted!
http://i968.photobucket.com/albums/ae170/warchildzx7/CNC%20Plasma%20Table%20Build/Carriages.jpg

Everything mounted... yes, i know i'm missing one 7/16's bolt on each of the gantry ends... :-D ... My local hardware store only had 6 bolts and should have the other 2 needed in the next day or so... was not worth me driving all over town for 2 bolts... so, i'm holding out till my regular place gets more... :-)
http://i968.photobucket.com/albums/ae170/warchildzx7/CNC%20Plasma%20Table%20Build/Mounted1.jpg

Carriage far left, will be able to get all of my 48" of usable cutting area!.... (note my custom bushing/spacers on the v-bearings!)
http://i968.photobucket.com/albums/ae170/warchildzx7/CNC%20Plasma%20Table%20Build/Mounted4.jpg

Gantry far rear... With z-axis mounted i should have just over 48" of usable cutting area!
http://i968.photobucket.com/albums/ae170/warchildzx7/CNC%20Plasma%20Table%20Build/Mounted5.jpg

winegar
02-20-2011, 11:51 PM
Better photos to follow tomorrow!...

winegar
02-21-2011, 08:31 PM
Ice storm hit here in michigan... Will be without power till thursday... Will catch upwith you guys then....

winegar
02-26-2011, 02:27 PM
Well got my power and internet back up now!... Will try and get some photos up tonight!...

MetalHead6263
02-26-2011, 06:15 PM
Those suck , was without power for two weeks two years ago in Ky.ice storm.

vdubjim
02-27-2011, 08:36 AM
ive been lurking a while, and i like your design, simple, easily sourced parts, well except your custom machined bits.

Am i right in figuring your into this so far for, $850? except bolts etc

linkintiger
02-27-2011, 02:51 PM
did you test your board tb6560 on 100% i tested mine and it didnt work from the beginning ( big smoke cloud)

Galtor
02-27-2011, 05:01 PM
linkintiger,
Sorry to hear that!
Who did you purchase it from and how long ago?
I just found a thread that the tb6560 had issues and had to be modded to get anything above 25%.If you bought from Hubbard CNC, I was hoping that they had possibly gotten newer boards that had been updated to correct the problems. Sounds like the answer might be NO. I was holding off till Winegar posted his results but now I think I will invest in the Gecko 540 or some of the single drivers.

linkintiger
02-27-2011, 06:29 PM
i bought from that link

Nema 23 Stepper Motor 270oz-in,3A +3 Axis Board CNC Kit - eBay (item 280616213798 end time Mar-15-11 01:00:59 PDT) (http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=280616213798&ssPageName=STRK%3AMEWNX%3AIT)

i had it for a couple days only.

winegar
02-27-2011, 10:15 PM
did you test your board tb6560 on 100% i tested mine and it didnt work from the beginning ( big smoke cloud)

I have ran it on 50%, 75%, and 100%.... No smoke!... Runs like it should as far as i can tell bench testing it... The 420oz steppers i have run 1.4amps @ 420oz.... Right now I have it set to current= 50%, Buffer=Fast, and sub-set=1/2....... I have played with it on the bench quite a bit and everything seems smooth... take in mind I honestly have no idea in hell what the buffer and sub-set it!... lol..

I have worked on the wiring off and on all day today... trying to figure the best way to install my limit switches on the X & Y axis.... the front X was easy... the rear i'm still working on and the Y's on the gantry gave me a fit... but i got it figured out.... Have it all painted now and will have it bolted up tomorrow after the paint dries... Have not made much progress this week with the power being out and then having to work so much too...


Things left to do at this point:
Find someone local to bend my cable track channel...
Ordered my Zaxis from tulsaturbo... Install it when it arrives this week...
Find me a computer for garage only... (dont want to move my pc around!)
Build some type of device to hold my steel while it cuts its own slats!

Kentuckyfarmer
02-28-2011, 07:22 AM
[I]Find me a computer for garage only... (dont want to move my pc around!)[

You may want to check out new egg .com they have recon ones with XP loades 40 gig hard drive pc and new monitor around 300 $ got one the other day . Seems ok so far fast shipping also

vdubjim
02-28-2011, 07:57 AM
that is crazy expensive.
PC Desktop deals - Compare PC Desktop sale prices from Dell, HP, Sony, Toshiba and IBM (http://dealnews.com/Computers/PC-Computers/PC-Desktop-Deals-48.html?filter=c:48;&o=price)

I Lean
02-28-2011, 09:02 AM
That is crazy expensive. ;) Try this:

Tower & Desktop PC's : surpluscomputers.com (http://www.surpluscomputers.com/featured-systems/cg-77/tower-desktop-pcs.html)

Kentuckyfarmer
02-28-2011, 06:19 PM
Maybe I failed to make myself clear. I got a Dell refurbished desktop, with windows XP loaded on it , it has 40 gb hard drive, new mouse, keyboard and a new 18 inch flat screen monitor with shipping for about 300 $. Not going to get in a pissing contest but I did not see any better deals on the 2 sites listed below, but I could have missed something.

cobretti
02-28-2011, 09:58 PM
Winegar first off GREAT build log and workmanship!

I only have one problem - why do you have to make it look so easy :D

It has totally inspired me to build a CNC table since finding your thread on the weekend and seeing your amazing progress. I am in IT so no experience on CNC or metal work but I made the mistake of buying a Jeep. This had led me to believe I could make my own parts for it which is why I found this siteand to be honest I was actually looking to build a welding table. Only started trying to weld in the past month and now think this will be my second project after a welding table.

I have taken the plunge and ordered tulsaturbo's kit tonight to get me comitted....at least until the wife asks about all these things arriving at the door then (chair)

anyways taking up too much thread space here - eagerly awaiting your next set of updates:cheers:

winegar
03-01-2011, 06:01 PM
Well guys, I have my computer.. Picked one up locally at a computer store that builds custom computers for $20... someone left this one instead of paying to have it fixed, and had a new one built.... I replaced the hard drive and installed ram both of which i had laying around..... and she is ALIVE!!!... Installed XP.... All my related CNC software.... and got her hooked up out in the shop.... She moves smooth steady, good sign!.... Need to figure out my settings for the gear rack.. Hope to have that done tonight, and i will do a video of her up and running.... She move fine, i'm just being extra careful not to run her off the ends until i have my limit switches installed 100%!!!

My wife went to Disney World to run a 1/2 marathon and has been there for about a week now giving me time to work on the house, cars and my table build! I took a few days off work to get a lot of stuff done around here that need doing (except clean my dang garage!)... She will be back late tomorrow... so i need to get a move on!

I have my safety/limit switches install on both right and left of the Y/gantry.... and have my bracket made for the front of the Xaxis.... the rear X is proving to be much fun and hope to have that figured out tonight!... Photos to follow!

Some of these photos that i shot today, I used one of my large Nikon's that weigh like 8lbs with lens and all, shooting freehanded, the garage is quite dim lit and with this lens, the on board flash will not go around it with it being a foot long and glass larger than the camera....lol.... and i really don't feel like either dragging out one of my bounce flashes or getting the tripods... so, they might be just a hint of fuzzy... sorry guys!.... lol

winegar
03-01-2011, 06:21 PM
Limit switch brackets!
http://i968.photobucket.com/albums/ae170/warchildzx7/CNC%20Plasma%20Table%20Build/Yaxislimitswitches.jpg

winegar
03-01-2011, 06:24 PM
Gantry ends finished running cable... just need tidying up a bit... and to make my brackets for the E-track!
http://i968.photobucket.com/albums/ae170/warchildzx7/CNC%20Plasma%20Table%20Build/GantryEnd2.jpg


http://i968.photobucket.com/albums/ae170/warchildzx7/CNC%20Plasma%20Table%20Build/GantryEnd1.jpg

winegar
03-01-2011, 06:33 PM
5/16 bolts for the "positive" stops on the Y... Fitted perfectly with Square nuts in the AAG and nuts with floating washers to lock in down... Fits great but you will have to insert the Square nuts with the ends off!... They will NOT fit without removing the end!

http://i968.photobucket.com/albums/ae170/warchildzx7/CNC%20Plasma%20Table%20Build/Limitswitches1.jpg


http://i968.photobucket.com/albums/ae170/warchildzx7/CNC%20Plasma%20Table%20Build/Limitswitches2.jpg


http://i968.photobucket.com/albums/ae170/warchildzx7/CNC%20Plasma%20Table%20Build/Limitswitches3.jpg


http://i968.photobucket.com/albums/ae170/warchildzx7/CNC%20Plasma%20Table%20Build/LimitSwitches4.jpg

Smike740
03-01-2011, 07:26 PM
Winegar,

The table looks great. I am looking at building a similar size table using the Plasma bot pieces.
How is the direct drive working out? Do you think there is any issue with smoothness at slower speeds etc? I have been going back and forth on direct drive vs 3:1 belt reduction.

Also could you advise on your source for the motor pinion gears, the number of teeth and DP and the pressure angle?

I looked at McMaster but I didn't see any 16 or 20 DP spur gears with a 1/4 bore.

I look forward to seeing your table in action, please post some videos.

Mike

Smike740
03-01-2011, 07:41 PM
OOPS!! duplicate post

winegar
03-01-2011, 08:19 PM
I have only toyed with it so far.... but seems quite smooth.... If you checkout all the video's of the PlasmaBot by ShopDroid on youtube... you will see this thing is quite incredible as for detail... He has one setup as a CNC router table.. exact same table and cuts this Mayan Calendar that is just awesome... same table, same parts, different cutting tool!...

Hope it is okay with tulsaturbo that i post this up here.... but you would have found it on youtube anyways! ;-) YouTube - ShopDroids's Channel (http://www.youtube.com/shopdroids#p/a/u/2/446yp1v-XiY)

As for detail... I dont know if i will ever need a plasma cutter that is capable of cutting something so intricate but, i'm confident it will!... If i ever want to build a belt reduction... with this all setup and done... I'll cut my own parts!!!

Not to mention that he has been of great help with the materials sheet that he supply's with the kits... Points you in all the right directions!

Oh, and you are on the right track with the rack above... there is a 3/8" to 1/4" brass bushing that gets pressed into the pinion!...

zool
03-01-2011, 09:14 PM
Yer the best .. solved the question of where and how to located limit and home switches.

winegar
03-01-2011, 09:47 PM
Yea, it was a chore!...lol

More to come tomorrow!

linkintiger
03-01-2011, 11:18 PM
winegar where did you bought your black Carriages?

winegar
03-01-2011, 11:47 PM
winegar where did you bought your black Carriages?

NoSleep Studio (http://www.needfulthings.net/host/nosleep/studio/index.php?cPath=31&osCsid_NS=1e9efcc7d896ea35ee9942471e60f437)

He is local on here too.... tulsaturbo is his user name....

Good guy to deal with!

zool
03-02-2011, 12:41 AM
I second that on tulsaturbo .. I bought a whole cnc router from him.

joebass
03-02-2011, 11:05 AM
If you dont mind me asking, what did you pay for the integrated V rail and bearings?

winegar
03-02-2011, 11:19 AM
If you dont mind me asking, what did you pay for the integrated V rail and bearings?

See post #22 ;)

I have posted about what everything cost as I have went along, ... Post #22 will give you the exact sizes and pricing!

I did however forget to post for the bearings.... about $10ea

winegar
03-02-2011, 01:47 PM
.... In a panic, I created a very intense, highly time consuming, extreme precision, test pen holder for this machine.... If you like the pen holding apparatus, as seen in the following photos, I will be selling the kit for $400,... comes with everything needed to attach the pen to YOUR gantry!... If you act now, I'll throw in not one... but two pens... that is 2 attaching devices and 2 pens for only $400.... first 30 callers get FREE S&H!

...... Here are a few photos:.... Sorry for the quality of photos, I have used 3 different camera during this whole project, wife has the nice little camera i started off this with at Disney World right now... It does nice photos and video... this photo set is from our older one and does just okay... the Nikon is to bulky for the garage!

Success!

http://i968.photobucket.com/albums/ae170/warchildzx7/CNC%20Plasma%20Table%20Build/My1stTestRun2.jpg


http://i968.photobucket.com/albums/ae170/warchildzx7/CNC%20Plasma%20Table%20Build/My1stTestRun1.jpg


http://i968.photobucket.com/albums/ae170/warchildzx7/CNC%20Plasma%20Table%20Build/My1stTestRun3.jpg


http://i968.photobucket.com/albums/ae170/warchildzx7/CNC%20Plasma%20Table%20Build/My1stTestRun4.jpg

winegar
03-02-2011, 01:55 PM
After tweeking with my "motor tuning", this is my first test run.... Seemed to do quite well to me!...


http://i968.photobucket.com/albums/ae170/warchildzx7/CNC%20Plasma%20Table%20Build/th_FirstTestVideo.jpg (http://s968.photobucket.com/albums/ae170/warchildzx7/CNC%20Plasma%20Table%20Build/?action=view&current=FirstTestVideo.mp4)

vdubjim
03-02-2011, 02:28 PM
you will definitely have to post your mach3 settings etc when done

cobretti
03-02-2011, 02:34 PM
congrats on the first run! can't wait to get going on this however since budget calls for sourcing some parts locally, looks like it will slow me down :(

winegar
03-02-2011, 02:53 PM
I guarantee you, your budget could not be much tighter than mine right now!.... However time is money!.... In every way..... The extra $20 you will spend, may save you 8 hours of pain and suffering!... Any questions... let me know!

linkintiger
03-02-2011, 05:47 PM
that's pricey lol, i just don't see rails on this web site, your tb6560 board is 4 or 5 axis?

winegar
03-02-2011, 06:11 PM
that's pricey lol, i just don't see rails on this web site, your tb6560 board is 4 or 5 axis?

It is 4-axis, the one is not connected right now... that is the Z-axis... It is being shipped to me even as well speak.... and the last spot on the driver board is for spindle/torch!.... That will come after i get my Z installed as well!

zool
03-02-2011, 07:11 PM
linkintiger:

you might look at ebay for a small CNC router frame and a few parts, they are quite inexpensive there.

Here is an example: ebay Item number: 260745192047

If you go with a ShopDroid, you should plan on spending approximately $3500 for mechanicals, electronics and software.

linkintiger
03-02-2011, 08:16 PM
zool... thx for the link, right now my biggest problem is to buy good all in one board similar to tb6560 i build the MDF table and i'm stuck with power supply and motors because my board fried after 10 min working time but so far i'm still waiting for a good advice on good 3 axis board ,except expensive gecko 540.


winegar...i was interested in price of that Gantry Rail AAG and AAS Rails on mcmaster but the search bar couldn't find. do you have direct link to that parts?

question # 2. How did you attached gear racks to the rail?

winegar
03-02-2011, 10:21 PM
Gear rack is attached with....

http://i968.photobucket.com/albums/ae170/warchildzx7/CNC%20Plasma%20Table%20Build/DSC_0582.jpg


Yea, I know... that is one big roll!....... I clean, clean and clean some more... wipe with acetone, heat with heat gun then apply! Not the cheapest thing in the world either... but not bad... McMaster has it too...

As for the AAG & AAS rail... You will have to find a distributor in your area.... Or call this one in mine..... Motion Industries @ (269) 381-1540 .... ask for Brad... Tell him "Melissa" told you about them!.... Its an inside joke that he will love... You can order and pay over the phone.... then PCBlinear will drop ship direct to you... Nothing to it!...

linkintiger
03-02-2011, 11:33 PM
ok thx for info is there a specific size of that rail to fit with "no sleep studio kit? cause i'm gonna try local store maybe they have cheaper one.

....i know i'm asking too many question if that bother you feel free to say STOP :)

when i look at the page "no sleep studio" they have 2 different kinds of DIY kits.....one is router bot and plasma bot is that mean that router bot can't be use for building a plasma table?

Lost Arts
03-03-2011, 12:13 AM
Nice very informative,hope to start mine real soon,keep up the good work.Later!

winegar
03-03-2011, 07:10 AM
No problem at all.... the Rails are IVTAAG & IVTAAS.... that is the model numbers/size you are looking for that fits with the PlasmaBot kits... You just need your lengths!..... Im sure you can use either kit for either app but i would check with tulsaturbo just to make sure...

linkintiger
03-03-2011, 05:59 PM
ok thx :)

brad_irc
03-04-2011, 03:35 PM
I don't mean to sound pushy, but you need to work faster. It's killing me waiting for updates!! :D

linkintiger
03-04-2011, 06:10 PM
winegar.... did you try different spur with different steps? like 3/8 or 3/16 step? will it give you better accuracy?

is it necessary to use 2 step motor for that one axis?

how did you make them move at the same time is that option in mach3 or you just wire in different way?

winegar
03-04-2011, 06:52 PM
I don't mean to sound pushy, but you need to work faster. It's killing me waiting for updates!! :D

I'm working on it, i'm working on it!....

hah... Yea, my Z should be here looks like monday... I have been drawing a few items and seems that this is going to work out great... Just need to figure out how i'm going to hold my sheet steel to cut it on the table for my slats... I guess i could cut a few by hand... jut to give me a base to use till i get all the others cut!... Will have to work that out!...

Oh, as for the steppers... yes, you have to use (2) X-axis, (1) Y-axis and (1) Z-axis.... as for setting it up... very very simple.... Like this:

Mach3:
Config:
Slave Axis:
X-Axis - Slave "A"
Restart Mach3
Mach3:
Config:
Homing/Limits:
Axis "A" (Check mark "Reversed")
Restart Mach3
Done....

Now when you run X, both your X and A will run at the same time one clockwise the other counterclockwise.... to make her run in the right direction!...

Hope that helps... If that dont make since.. let me know!.. :)

cobretti
03-04-2011, 07:35 PM
well after a very stressful day it at least ended with some good news.

My steel was ready for pickup - I barely made it before they closed and just now as I was catching up on the thread my shipping notice email for my plasmabot kit came through :banana: thanks JB!

winegar sorry if it has been asked before but are you planning on putting in a water tray?

and yeah that steel is now stored in the last open space in my garage - I have quite a job cleaning before i can even start construction. Will attempt a "build" log when it eventually kicks off

winegar
03-04-2011, 09:28 PM
cobretti:..... Are you trying to fool us people up north or what???... I hate to call BS, but your "location" says CA.... Either you are BSing us... or that does not stand for California!???.... How do i know... I see a Snow Blower in your garage!... I'm org from Tennessee and i had never even seen one before i moved here to Michigan!... I can remember the first time (7years ago) I seen my first snowmobile... I was like "wtf is that thing!"...:eek:... I have to admit... that is one bad ars snow blower!....

Anyways man, I wish you the best of luck on your build and if you need anything... Let me know...

Nite guys... Will have some stuff to post tomorrow!...

cobretti
03-04-2011, 10:17 PM
LOL did not even realize that - no not California but definitely up north....let me correct it

Upon closer inspection of the cut steel they did not do the best job at cutting it square :mad:

winegar
03-04-2011, 10:26 PM
:-D .... That's better!...

As for the cut steel... dont worry about it... just make sure you have it all square when to tack it up... measure like 3 times.... tack it... measure again.... then skip around when you are welding it up... to keep it from distorting too much!...

You can trim it all up if you have a band saw... but if the lengths are pretty close... well, I just used magnets to hold my sections together while i tacked everything... If you have a little gap to make it all square, what will it matter when you fill it with some hot steel anyways!... Weld that sucker up square and call it good!... Oh, did i mentions measure it several times???... lol...

linkintiger
03-05-2011, 12:14 AM
you must be spending a lot of $$$ for those v- bearings $9 each and 16 for your project

cobretti
03-05-2011, 12:22 AM
:-D .... That's better!...

As for the cut steel... dont worry about it... just make sure you have it all square when to tack it up... measure like 3 times.... tack it... measure again.... then skip around when you are welding it up... to keep it from distorting too much!...

You can trim it all up if you have a band saw... but if the lengths are pretty close... well, I just used magnets to hold my sections together while i tacked everything... If you have a little gap to make it all square, what will it matter when you fill it with some hot steel anyways!... Weld that sucker up square and call it good!... Oh, did i mentions measure it several times???... lol...

Thanks winegar! Will measure and measure again and one more time for good measure :)

As I mentioned earlier my welding skill is somewhat limited since I only started last month. Which brings me to another question - did you consider making your table bolt together or is welding the preferred method?

cobretti
03-05-2011, 12:30 AM
you must be spending a lot of $$$ for those v- bearings $9 each and 16 for your project

hmmm did I count wrong? i thought i would only need 12 and I am also going with the z drive

Smike740
03-05-2011, 11:21 AM
The V bearings can be bought through Amazon for $7.77 ea. I just ordered my yesterday. For some reason VXB sells them cheaper via Amazon than from their own web site

winegar
03-05-2011, 04:02 PM
yea.... V-bearings needed should be (2) needed per gantry ends... so (4)... and (4) for the Y-axis..., (8) total....

more stuff to follow later!

linkintiger
03-05-2011, 05:39 PM
my mistake 12 because you need 4 for z axis so its 2+2+4+4 :)

those eccentric bushings come with bearings in the package? or you bought from mcmaster?

those 2 optional black plates on "no sleep studio" are those plasma dust shields?

MetalHead6263
03-05-2011, 08:25 PM
You gonna have d .h.t.c. ?

winegar
03-06-2011, 08:11 AM
my mistake 12 because you need 4 for z axis so its 2+2+4+4 :)

those eccentric bushings come with bearings in the package? or you bought from mcmaster?

those 2 optional black plates on "no sleep studio" are those plasma dust shields?

I'm using the "PlasmaBot" Z-axis.... but using a different type of torch attachment..... With the Z-axis from tulsaturbo... it comes with the 4)V-bearings already on it.... I'm using a rail and carriage for my touch and go... so, I only bought (8) Bearings!...

No, those eccentric bushing do NOT come with the bearings... and are extra.... yes, I did order mine through McMaster.... I was going to make some... but thought about my time, It's worth more than $10-15 an hour!... lol.....

Yes, the black plates that mount on the ends of the gantry, toward the inside are just dust shields... and you can leave them off if you like...

winegar
03-06-2011, 08:13 AM
You gonna have d .h.t.c. ?

Really, right now I'm going with "touch & go".... If that turns out like i'm expecting, there is no way i'm spending that money on DHTC.... I have seen many videos on touch and go... and I think that is going to work out just fine!....

I'll spend that money on a new tool back for the garage and try and clean my area up!.... :)

winegar
03-06-2011, 08:16 AM
My "PlasmaBot" Z should be here in a few days... I have been working out the details of how to attach my torch to the Z.... I have it all figured out at this point.... It will not be that pretty.... but will use it to be able to cut a much prettier part to replace my more crude attachment after i get her up and cutting!...

vdubjim
03-06-2011, 08:18 AM
You gonna have d .h.t.c. ?


ive searched and seen it mentioned, but no explanation what is that?

winegar
03-06-2011, 08:33 AM
Someone correct me if i miss speak... I'm pretty new myself!...

DTHC: Will control the output of your plasma cutter and regulate the distance from your workpiece to your torch tip, to give you the best cut..... Pretty much....

vdubjim
03-06-2011, 11:12 AM
Ahh cool. Seems difficult to do on a hand held plasma?

start here
03-06-2011, 02:10 PM
You gonna have d .h.t.c. ?


ive searched and seen it mentioned, but no explanation what is that?


You should be searching for DTHC (Digital Torch Height Control)

linkintiger
03-06-2011, 02:20 PM
eccentric bushing are 3/8 outside 1/4 inside what about the flange thickness, flange diameter and lenght?

with plasma torch you can cut only steel or aluminum too?

cheetahcnc
03-06-2011, 03:13 PM
One real sweet build you have going here. :cool:

Smike740
03-06-2011, 06:00 PM
Linkintiger,

The drawings for the flange bushings can be found on the PBC linear website along with the drawings and CAD files for the rails bearing etc... Here is a link to the specifications page V-Guide Roller Bearing Eccentric or Concentric, Adjustable or Fixed Bushing (http://www.pbclinear.com/V-Guide-Roller-Bearing-Bushing?tab=Specifications). Look at the CAD model tab and select the V guide bushing-V2 (size 2).

I plan to make mine on my lathe vs buying them.

Mike

linkintiger
03-06-2011, 06:13 PM
how many pitch and what step size should have spur and gear track?

winegar
03-06-2011, 09:23 PM
how many pitch and what step size should have spur and gear track?

20 Pitch..... (edit)

winegar
03-06-2011, 09:27 PM
Here are a few new photos... This is going to be my temporary "touch n' go" setup.... Just a quick toss together... The finished piece will be much cleaner and precise... My table will cut it once it is all together and running!...

These are sort of quick and dirty photos... sorry... Just wanted to show some type of progress... I will tap the finished pieces, instead of having to use nuts... and of course the bolts will be shorter tomorrow!.. :-)... That is all i had laying around..... Need another trip to the hardware store!

http://i968.photobucket.com/albums/ae170/warchildzx7/CNC%20Plasma%20Table%20Build/TouchGo1.jpg


http://i968.photobucket.com/albums/ae170/warchildzx7/CNC%20Plasma%20Table%20Build/WideLinearRailCarriages.jpg


http://i968.photobucket.com/albums/ae170/warchildzx7/CNC%20Plasma%20Table%20Build/TouchGo2.jpg

linkintiger
03-06-2011, 09:46 PM
degree? or 20 pitch?

http://www.mcmaster.com/#gears/=bbmlcw

sorry i'm new to this subject

cobretti
03-06-2011, 10:38 PM
I'm using the "PlasmaBot" Z-axis.... but using a different type of torch attachment..... With the Z-axis from tulsaturbo... it comes with the 4)V-bearings already on it.... I'm using a rail and carriage for my touch and go... so, I only bought (8) Bearings!...

No, those eccentric bushing do NOT come with the bearings... and are extra.... yes, I did order mine through McMaster.... I was going to make some... but thought about my time, It's worth more than $10-15 an hour!... lol.....

Yes, the black plates that mount on the ends of the gantry, toward the inside are just dust shields... and you can leave them off if you like...

Winegar did you buy the full Z axis kit hence the need for only 8 bearings? I bought the DIY Z kit which is why I ordered 12 bearings - hope I did not waste $40 :(

winegar
03-06-2011, 11:02 PM
degree? or 20 pitch?

Pitch.. sorry, was running from memory... been a long day!

Cobretti:... Yea, i bough the whole Z kit... Just need to add something like my above for my touch n' go.... or you can measure and cut with a manual holder instead of one like mine... they are so many options!... To many to count... I just got too good of a deal to pass on this rail and carriages!...

winegar
03-07-2011, 06:22 PM
Guess what i got in the mail today???.... Yeap, It came!


Here is my Z all mounted up and about ready to do some damage!... Mind you, once I'm making a few cuts with her... this will change a bit... as in it will be a little more neet and clean!.... Some better measurements as well... This is truly just to get me up and running!... two tacked strips of steel on there is to keep my carriage from dropping out the bottom or sliding out the top.... I will be placing a switch above there as well... Maybe tomorrow or later today...

http://i968.photobucket.com/albums/ae170/warchildzx7/CNC%20Plasma%20Table%20Build/TouchnGo3.jpg

http://i968.photobucket.com/albums/ae170/warchildzx7/CNC%20Plasma%20Table%20Build/TouchnGo4.jpg

rock4xfab
03-07-2011, 07:57 PM
The build looks good, I like your offset switch mounts LOL.. If you have not looked yet and want to get your motor tuning real good there is a you tube video that makes it realy easy and you cant get any more accurate.
Scott

linkintiger
03-07-2011, 11:18 PM
once it touch the surface it will go up automatically ?

dpac
03-08-2011, 01:49 AM
The build looks good, I like your offset switch mounts LOL.. If you have not looked yet and want to get your motor tuning real good there is a you tube video that makes it realy easy and you cant get any more accurate.
Scott

Build is comming along great winegar...

Care to share the link for this video rock4xfab? cheers

vdubjim
03-08-2011, 05:42 AM
I hope that when you get done, either you, a mod or someone is allowed to sort through everything and make a nice post with ALL parts, numbers, www. etc and ballpark $$$

rock4xfab
03-08-2011, 12:05 PM
Build is comming along great winegar...

Care to share the link for this video rock4xfab? cheers

Here you go... I am a machinist so I have some of he toys to do this. I also used a 36.5" ground rod instead of a parallel. So my accuracy is over 36.5"

For those using Dragon cut. you will use the normal screensets tune the motors, then right down your findings then insert the numbers into the CandCNC screensets motor tuning screens.


YouTube - Improved Mach 3 Axis Calibration

linkintiger
03-09-2011, 07:57 PM
did tap inside the rails for 7/8 screws?

winegar
03-09-2011, 11:28 PM
No, I taped the top for 5/16" bolts.... but you can use 1/4" as well... that will give you a little room for adjusting the rails if you get your table a little off.... If you go 5/16" like me, There are about 1-2mm of slack you can move one end in or out, and that is about it!...

Been busy today, and did not get to make any progress on the table... Other than I got my network card in the mail today, this way i will not have to run a small usb hard drive back and forth every time i want to try something out in the garage!... Works great... :-D

Replaced a coolant pipe on a Chrysler LHS today... required removing everything down to the lower intake, whoever though of putting a heater hose pipe under the intake should be shot!... but, it pays my bills,... or in this case a few sheets of steel!.. lol

Hoping for some progress tomorrow!

linkintiger
03-10-2011, 10:30 AM
you got the welder so you can put the cut-out valve on the exhaust it will make your Chrysler sounds like a beast. ;)

winegar
03-10-2011, 07:44 PM
you got the welder so you can put the cut-out valve on the exhaust it will make your Chrysler sounds like a beast. ;)

hahahah... oh yea!... but the customer probably would not like it... 70yr old church lady!... haha... but yea, that would be funny to give it back to her like that, till her check did not clear!... haha...

winegar
03-12-2011, 03:44 PM
About done figuring out all my electronics!... Went and bought a few small pieces of thin sheet metal to try her out... and some 1/2x1" tubing to use as a temp slats!....

winegar
03-12-2011, 08:49 PM
Here is my testing setup... Before i place the torch on there, I want to make sure i have everything 100% worked out.... Here is a photo of what i have set up... I used the metal square stock to allow for some flex, in case something is amiss..... and it is... lol.... Video's to follow!...


http://i968.photobucket.com/albums/ae170/warchildzx7/CNC%20Plasma%20Table%20Build/TableTesting.jpg

winegar
03-12-2011, 09:04 PM
Edited:... Got this part figured out...

Will post new video's below.... Simple click of the mouse fixed the problem I was having!...

winegar
03-12-2011, 09:22 PM
Edited:...Well, this is what i end up with when trying to cut a simple 4" circle.... Now, she seems smooth... but at the end.... WOW.. Lookout... I nearly shat myself!.. This is the video before the fix....

http://i968.photobucket.com/albums/ae170/warchildzx7/CNC%20Plasma%20Table%20Build/th_Testrun1.jpg (http://s968.photobucket.com/albums/ae170/warchildzx7/CNC%20Plasma%20Table%20Build/?action=view&current=Testrun1.mp4)

She Stops the cut cycle, torch relay turns off... then all of a sudden she just rams down .25 all over again and takes off back to home!... Sometimes when I would "Ref All Home"... then start cut cycle, it would do the same thing at the start and ram the workpiece....

Now the video of it fixed.... Two simple clicks of the mouse!.... Oh, what a little click can make!
Clicked Homing/Limits.... Z axis (un)checked "reversed" and checked "Home Neg".... That took care of that!


http://i968.photobucket.com/albums/ae170/warchildzx7/CNC%20Plasma%20Table%20Build/th_TestRun2.jpg (http://s968.photobucket.com/albums/ae170/warchildzx7/CNC%20Plasma%20Table%20Build/?action=view&current=TestRun2.mp4)

And a closeup of "Ref All Home"


http://i968.photobucket.com/albums/ae170/warchildzx7/CNC%20Plasma%20Table%20Build/th_RefAllHome.jpg (http://s968.photobucket.com/albums/ae170/warchildzx7/CNC%20Plasma%20Table%20Build/?action=view&current=RefAllHome.mp4)

linkintiger
03-13-2011, 12:27 PM
hmmm interesting i think what i will do is try to follow the protocol line by line pay attention to the first line a last one maybe that will help you figure this out.

Down&Dirty
03-13-2011, 04:24 PM
I think you are setting your Z home wrong. When it comes down and the slide starts moving you are in the negative range of the Z axis. Basically as soon as the sliding head touches you are at z=0. Then it slides down to get to the switch which is located at a negative measurement z=-slide distance. When the switch gets hit, it should set z=-slide distance and then move back up to z=0 for the home.

You are setting z=+slide distance so when it is trying to cut it thinks it needs to go down to get to the material. I had the same problems with mine.

winegar
03-13-2011, 07:41 PM
Check my post #127 for new videos!... I got this part all figured out!.... Now to figure out why after starting the cut cycle, the Z does not come back up to it proper height.... I might be cutting something tonight... and you know i'm making a video!...

winegar
03-13-2011, 08:15 PM
Same Video as in #127 above... but of her about finished!...

http://i968.photobucket.com/albums/ae170/warchildzx7/CNC%20Plasma%20Table%20Build/th_TestRun2.jpg (http://s968.photobucket.com/albums/ae170/warchildzx7/CNC%20Plasma%20Table%20Build/?action=view&current=TestRun2.mp4)

And on of my Z switch... Notice how I do not have something set right... the Z comes down (notice how far the slide comes up to trip switch), switch on then off,... raises only a little, completes cut cycle... Does not raise the .545" I have set in SheetCam to raise enough to pull the "torch tip" up from the cut surface.... Still working on this one!... lol... It is only time now!... I'm so ready to cut something I can smell it!

http://i968.photobucket.com/albums/ae170/warchildzx7/CNC%20Plasma%20Table%20Build/th_ZHomeSwitch.jpg (http://s968.photobucket.com/albums/ae170/warchildzx7/CNC%20Plasma%20Table%20Build/?action=view&current=ZHomeSwitch.mp4)

Down&Dirty
03-13-2011, 08:50 PM
I am pretty sure you are just setting home incorrectly like I stated earlier. Watch your Z value when it operates. I run EMC2 but the principles are the same. I use limit/home switches to set z. So the Z limit/home switch location is set as -0.541. That way when it hits the home switch it knows that it needs to back up 0.541 inches to get to zero. This lets me use a lift start plasma. I tell it to start the cut at -0.01 and then pull up to 0.1161 for pierce. Finally down to 0.0561 for cutting.

Before I set the home switch location correctly my machine didn't pull all the way back up. Try slowing down the feeds and see what values are going into your controller as it works. My guess is that when that switch on the floating head gets touched, the software backs off just a little and sets to zero.

Your machine looks killer. I wish I would have spent the cash on the nice linear rails. The one thing I have to keep reminding myself of now that I am testing and tuning the machine is that I probably didn't tell it what I wanted it to do. And that the machine is doing exactly what you told it to.

winegar
03-14-2011, 07:56 PM
Got her running right now!... Videos to follow tonight.... I think I will be able to do some test cuts.... I have lots of photos and videos to post!!!....

winegar
03-14-2011, 08:23 PM
Okay... Here we go!..... This is the insides to my Plasma Cutter Unit.... It is from Harbor Freight Tools, and is a Trafimet Cutting Torch.... The photos show the guts... actually is a very nice unit for the money, and has 100% duty cycle @30amps... We will be testing that soon enough, up till now, I've only been cutting by hand and for few minutes at a time!... Also, the last two photos here... Show the connection needed to activate the torch from inside the unit, instead of running wires from the torch handle itself.... Video of this to follow as well!...

http://i968.photobucket.com/albums/ae170/warchildzx7/CNC%20Plasma%20Table%20Build/CutterGuts1.jpg


http://i968.photobucket.com/albums/ae170/warchildzx7/CNC%20Plasma%20Table%20Build/CutterGuts2.jpg


http://i968.photobucket.com/albums/ae170/warchildzx7/CNC%20Plasma%20Table%20Build/CutterGuts3.jpg


http://i968.photobucket.com/albums/ae170/warchildzx7/CNC%20Plasma%20Table%20Build/CutterGuts4.jpg

winegar
03-14-2011, 08:44 PM
http://i968.photobucket.com/albums/ae170/warchildzx7/CNC%20Plasma%20Table%20Build/th_TorchTest1.jpg (http://s968.photobucket.com/albums/ae170/warchildzx7/CNC%20Plasma%20Table%20Build/?action=view&current=TorchTest1.mp4)

linkintiger
03-14-2011, 11:16 PM
veri najs mi like ;)

Jimmystractor
03-15-2011, 01:44 AM
The V bearings can be bought through Amazon for $7.77 ea. I just ordered my yesterday. For some reason VXB sells them cheaper via Amazon than from their own web site

The same guy on ebay(vxb/irvineman) also sells 8@$49.99 and 16@$99.99($6.25 each) with "free" shipping.

winegar
03-15-2011, 04:08 PM
The same guy on ebay(vxb/irvineman) also sells 8@$49.99 and 16@$99.99($6.25 each) with "free" shipping.

Those are NOT the same bearings.... Those are shielded, NOT sealed!... Will not last as long... I dont mind spending the extra to have them last longer.... Just my $0.02!

winegar
03-15-2011, 04:14 PM
Here are a few photos from my first cut! (really my 2nd, but who is counting!)...

I have to get her dialed in and all... I'm used to just firing her up and cutting metal and not caring how it looked... just getting her done... now it is a different story!

First cut... Torch side.. cut at 100ipm... Looks okay on this side...
http://i968.photobucket.com/albums/ae170/warchildzx7/CNC%20Plasma%20Table%20Build/FirstCut.jpg


Here is the back side from my first few cuts... piece on top is the first one @100ipm, and the bottom one is 50ipm.... Now i'm doing small parts of just trial and error!...
http://i968.photobucket.com/albums/ae170/warchildzx7/CNC%20Plasma%20Table%20Build/Compare2.jpg

winegar
03-15-2011, 04:35 PM
I just cut another of the same... but reversed the direction of the outer part to Clockwise and looks to be a little more square on the sides... Will be the most hectic part figuring out all this now!... lol

winegar
03-15-2011, 04:58 PM
Here is the video guys!... I had only cut the circle on the sheet to start with... and then this one!

http://i968.photobucket.com/albums/ae170/warchildzx7/CNC%20Plasma%20Table%20Build/th_Cutting1.jpg (http://s968.photobucket.com/albums/ae170/warchildzx7/CNC%20Plasma%20Table%20Build/?action=view&current=Cutting1.mp4)

MetalHead6263
03-15-2011, 06:27 PM
I bet the grin on your face went from ear to ear ! Congrats man ,open a cold one :cheers: keep posting ,my build has begun and i will need help !

winegar
03-15-2011, 07:05 PM
hahah... yea, I'm still playing with her... and have her running very smooth right now.... I feel like a kid at Xmas!...

winegar
03-15-2011, 08:29 PM
Got some kinks worked out... the new cut is on the bottom... this is bottom or the side away from the torch... notice the much lower dross.... Much better!

Same temp on the plasma cutter.... Just a click of the mouse in Mach3!....


http://i968.photobucket.com/albums/ae170/warchildzx7/CNC%20Plasma%20Table%20Build/Newcutonbottom2.jpg

winegar
03-15-2011, 08:33 PM
Something i done real quick... and i leart sumthing on this one... When autocad makes two copy for you, front and rear view... I will not delete the rear view anymore... as Mach3 is cutting everything upside down to my drawings... and the top/torch side is much cleaner than the bottom, so this way, it will cut it right side up.... as i passed over this thing real fast with the grinder to take the dross off...

I'm also an idiot as i have several bottles of welding gel I could have used too!... Oh well... Its a learning process right???

http://i968.photobucket.com/albums/ae170/warchildzx7/CNC%20Plasma%20Table%20Build/LandRover.jpg

Down&Dirty
03-15-2011, 08:46 PM
Congrats. I know that felt great. What kind of acceleration were you able to get out of the machine? What gauge is that steel and what current on the plasma? I am really impressed with the inside of that cutter being from HF. I figured it would be held together with old gum wrappers or something, but that looks really well put together.

winegar
03-15-2011, 08:52 PM
Really looks nice inside... everything as i can tell is pretty top notch... Wire loom on everything... all separate components and nothing really seamed cheap... Other than the price!...

As of right now.... I have not really played with finding its limits yet... but all these parts you see are at 100ipm at 25amps.... Thickness is 20 gauge... wish someone had some type of chart.... you know.... (x)amp X .?? thickness = 50ipm... now that would be cool!... You know.. just as a reference!

thanks to all you guys and kind words!...

linkintiger
03-15-2011, 09:16 PM
great job it's nice to see how it works, one question is your plasma cutter have variable power control because on some pictures it look like it melt the steel sheet instead of doing straight cut?

winegar
03-15-2011, 09:33 PM
great job it's nice to see how it works, one question is your plasma cutter have variable power control because on some pictures it look like it melt the steel sheet instead of doing straight cut?

yes it is... If you check with that photo... the one that is all gnarly and all, it was cut at 50ipm ... the nicer one was at 100ipm... and all the others were still cut at 100ipm as well.... I was experimenting.... and dropping my ipm to 50 was NOT the answer!...lol.... You were seeing the first 3-4 cuts ever made on this table... I was not trying to candy coat anything, just showing the raw truth to setting this thing up!... :-D

linkintiger
03-15-2011, 09:59 PM
cool :)

I Lean
03-16-2011, 01:17 AM
Nice! I vote for your next version of the floating Z, to make the "float distance" much much shorter. Simply for me, so I don't have to watch it go down and up quite so far when watching your videos. :)

Down&Dirty
03-16-2011, 10:47 AM
To get some ball park cut speeds I used a hypertherm 30 amp manual. I punched in the data they had and got this back out of excel. Don't take it as gossple because I know I can't cut at some of the speeds, but it lets me have an idea of where to start. Also with the floating head, you don't have to touch off everytime on most metals. I typically only touch off on the very start to set the torch height. I tried with every pierce cut, and found that the weight of the head would push 20 gauge right against the table after it had warped so there really wasn't a need to try to find the material height again.

cobretti
03-16-2011, 04:24 PM
Winegar awesome stuff - just managed to catch up and now really fired up even more to get out of here so I can get back on track

I admit reading all these setting changes make me nervous though:)

winegar
03-16-2011, 05:44 PM
Nice! I vote for your next version of the floating Z, to make the "float distance" much much shorter. Simply for me, so I don't have to watch it go down and up quite so far when watching your videos. :)

You know what.... for you man... You got it!... I feel the same way!... :-)..... Next setup will allow for switch tip in @ .25"... Half the time!

winegar
03-16-2011, 05:50 PM
Winegar awesome stuff - just managed to catch up and now really fired up even more to get out of here so I can get back on track

I admit reading all these setting changes make me nervous though:)

Thanks!... AS for the settings.... I'm taking this really fast..... all in all... I have only made a few changes to my initial settings.... I knew that my speeds would have to change to suit my different thickness of metal!...

Just take time... and a good group of guy on here to answer questions!... :cheers:

winegar
03-16-2011, 05:55 PM
Just a quick ref for you guys watching my build... I just changed my feed to 320ipm @30amps.... on the same sheetmetal that i have been cutting... and it cuts 100% without any dross!....

Down&Dirty... Thanks for the tips!... I mean it... I will give her a try at 600ipm.. but that seems insanely fast!

I have some thicker stock to cut tonight as well... Really just wanting to make my new floating Z part... I'm writing down EVERY setting that I try... and marking everything that works great... This way i will have it for later!... Thanks guys.. and will have a few more photos up maybe tonight!.... (I'm about out of this 20ga now!)....

I have to get started on my slats now... and my U channel to put my E-track in!..... Fun, fun, fun!!!

linkintiger
03-16-2011, 07:35 PM
320 ipm ?:eek: you flying not cutting ;)

Down&Dirty
03-16-2011, 09:55 PM
Just a quick ref for you guys watching my build... I just changed my feed to 320ipm @30amps.... on the same sheetmetal that i have been cutting... and it cuts 100% without any dross!....

Down&Dirty... Thanks for the tips!... I mean it... I will give her a try at 600ipm.. but that seems insanely fast!


I glad I could actually help. I have been feeling like all I do is take information from here. I will have to try speeding mine up. I haven't hit 300ipm yet, but I am still getting dross so I guess when my new torch shows up I will speed it up and try. My new machine just got all new gear reduction and a new torch to try and fix some quality problems.

I don't really think that the thin stuff can be done that fast, but you never know. I am just spending 12-16 hours a day processing data right now so once I found the information about cutting speeds I gave it a quick shot and got some ballpark numbers. I am more concerned with 1/8 and bigger, but the chinese manufacturers don't provide any decent data, and to be honest once my machine makes me enough money I am off to a good plasma cutter from someone who supports small time CNC people. I mean, that is where the initial cutting speed rates came from.

winegar
03-16-2011, 10:59 PM
Here you go guys!... 320ipm...The squares and circles that i cut at this speed has absolutely no dross at all.... but on this piece, i'm still getting a little... but it is acceptable, for this type of thing... Oh, and the piece fell right through like it should the second the camera was turned off... Was trying to keep the video small... @320ipm the dross was not as bad on this piece as the others at slower speeds... but I did still have some, I took a razor knife and got most of it.. and flexed it a bit and got almost all of the rest.... I'm not going to spend much more time playing with this piece... as it was just for fun anyways... now i know how she would have to be set to get good cuts on this really thin stuff.. now.. on to bigger things!...

http://i968.photobucket.com/albums/ae170/warchildzx7/CNC%20Plasma%20Table%20Build/th_320ipm8-Ball.jpg (http://s968.photobucket.com/albums/ae170/warchildzx7/CNC%20Plasma%20Table%20Build/?action=view&current=320ipm8-Ball.mp4)

winegar
03-16-2011, 11:01 PM
Photo of work at 320ipm.... This is the bottom, away from the torch.... Top looks perfect!...

http://i968.photobucket.com/albums/ae170/warchildzx7/CNC%20Plasma%20Table%20Build/320ipm8-Ball-1.jpg

linkintiger
03-16-2011, 11:33 PM
good job it was so fast i barely could follow after the plasma cutter with my eyes :)

Jimmystractor
03-17-2011, 08:51 AM
Do you have a total weight on the gantry with the torch mounted? I'm trying to figure what those(270oz range if I remember right?) steppers are good for. Don't know if you have the time or desire to do a speed test, but if you have good results at 600ipm, that is more than fast enough for me.

Down&Dirty
03-17-2011, 09:54 AM
It looks great. Looks like the heavy dross is in places with higher accelerations. You might want to look into the settings and see if you can turn that up any. I have been going back and forth on my table trying to find the max speed and acceleration. It is pretty tedious to do but if you can turn up the acceleration without loosing any steps it would be worth it. I know that my machine will go 600ipm with 50inch/s^2 acceleration, but it will loose some steps so it isn't worth it. Right now it has a top speed of 300ipm and acceleration is set to 30 inch/s^2. With some more tuning I expect to turn both up.

Of course if most of your cutting will be in 18 gauge or thicker, your current setup looks like it will have plenty of acceleration.

winegar
03-17-2011, 03:38 PM
I have not tried any speed test with it... at this point, I know that she will will 320ipm with not problem... and that is faster than i will probably ever need to run her... How ever i would like to know too... Weather here just turned nice, so it is pretty easy to do a little work outside now... Trying to finish up cutting a few tree's that fell in the yard from the last ice storm here!...

I might have to give it a shot here in a day or so!

Jimmystractor
03-17-2011, 03:56 PM
It's just over 80 here, but luckily the AC works well. I meant to ask what number VHB tape you used to attach your rack gear. I'm looking at 4941 or 5952, but I'd rather know what works than guess. I know it's great stuff, but I can't find anything concrete on what works. I'm painting my table and water bed with 4170 devran 2 part epoxy and at first I planned to just "stick it on" with the paint- which is pretty much like epoxy. After seeing the VHB and reading up on it- It's a no brainer. Did you mention your thread pitch and pinion? How about the width of the rack? The weight would be nice too if you have a pretty good idea of what it is. Is your Z a long NEMA 17? Sorry for all the questions- I've read through 2x.

winegar
03-17-2011, 04:00 PM
VHB tape has no markings on it... it is 1/2" wide and BLACK.... all steppers are the same... 23's @ 420oz... rack is 1/2" wide at maybe 3lbs +/-..... Not a problem... Making some new parts!...

linkintiger
03-17-2011, 11:07 PM
i'm playing with mach3 software i try go more then 120 ipm in "motor tunning" with no results where else are you changing your ipm?

winegar
03-18-2011, 10:44 PM
Quick photo of the front most Z floating plate i made... (on my plasma table of course!)... This was 100% spot on from the first try!... Plasma drilled the 9 holes.. opened them up with a step drill... and tapped them... all my holes are 100%.... I only had 3 bolts though.. will get more tomorrow.. and cut my back plate too!... And yes, I will only have .25" of float on this one!... Yea, i know... this is one rough looking slab... but she will be great with some paint!...

http://i968.photobucket.com/albums/ae170/warchildzx7/CNC%20Plasma%20Table%20Build/FrontPlate1.jpg

and another from the other side.....

http://i968.photobucket.com/albums/ae170/warchildzx7/CNC%20Plasma%20Table%20Build/FrontPlate2.jpg

Jimmystractor
03-19-2011, 01:34 AM
One of the thing I had not solved was attaching the rack to the table. I have to thank you for posting a picture of your tape. I looked around and figured you most likely used 4947F it has the highest bond strengths and is recommended for, among other things painted metal in harsh environments . Here is a link to the 3M brochure. Folks, If you don't need this tape you shouldn't look because you will want it.
http://multimedia.3m.com/mws/mediawebserver?mwsId=SSSSSu7zK1fslxtUmx_v5Yt9ev7qe17zHvTSevTSeSSSSSS--&fn=VHB%20Design%20Guide%20Low%20Res.pdf
It is used everywhere- attaching the lens to LCD screens, exteriors on buildings, body panels on trucks/trailers and more.

edit: I just noticed that yours is stamped with 5925- same family, just modified to also work well with plastics.

linkintiger
03-19-2011, 05:59 PM
what spray paint are you guys using for steel parts i'm using KRYLON indoor/outdoor semi gloss it dry fast but i don't know if it's hard enough for application like that.

Jimmystractor
03-19-2011, 06:06 PM
http://i195.photobucket.com/albums/z5/jwilson4940/devranlabela.jpg<P>
I'm using this. I have almost 10 gallons of it.

winegar
03-19-2011, 08:16 PM
Well, got my slats all cut today.. could have went a little smoother.... Hard to keep my cut height right when doing it the way i had to... but hey... at least they are made now and everything else will be better off, having a nice cut surface!.... Will post up photos later tonight or tomorrow after i clean them up a bit!

Made from 16ga flat stock....

winegar
03-20-2011, 08:12 PM
Woo Hoo!... Got my slats in today!... Actually, just now... wow... what a pain staking task!... Try holding 7 of these guys by yourself, then slipping one on from the top to hold them all together!... Yea, not looking forward to doing that ever again!.... And to be perfectly honest with everyone.... I think i'm going to go water table now!... Just the amount of "dust" from cutting 15 slats (1 test one!)... It is unreal... I will blow it all off tomorrow and take photos for you guys.. It really looks about complete now!

Heading to watch a tv show "Everest" with the ol' lady... Nite guys!....

brad_irc
03-21-2011, 01:01 AM
congrats on getting her almost done winegar. been checking this thread daily watching your progress :)

winegar
03-21-2011, 09:32 AM
Thanks guys!.... I'm about 90% complete at this point.... I'm cutting parts and such, I still need to wire up my safety switches.... They are all in place, just been lazy about getting the wire ran down my X-axis... That will all come when i get the U channel ran for my E-track..... Other than that, she is pretty much done...

My next project will be building my water table.... I already have an idea of how it will be done, just need to make a cad drawing of it first!... It will be easily removable as well.... Only bad point, The slats i just made will not be used and will make different ones for the water table!.... Will get some photos up today!

steetyj
03-21-2011, 01:52 PM
Hey newb here, very interested in beginning a project like this in the near future. My last big build was a hydraulic tubing bender, so a CNC plasma table seems like the next logical step!

didnt see it mentioned, but how big is your cutting area? I am guessing 44x44 from the dimension of the square tube you gave. If so, is there a reason not to go for the full 48x48(other than garage space)?

I am thinking I would like to build my table to handle 48" x 48" cutting surface. To accomplish this, will I need my "cutting area" to measure larger than 48x48(i.e. 52x52)? or can I get away with making it come out to the exact dimensions? Im guessing by
going with 48x48 exactly, you will not be able to cut all the way up to the edges of the material...is this correct?

winegar
03-21-2011, 02:24 PM
steetyj:... Actually in its current state, I can cut 48x48".... exactly... My slats fit on top of my top rails not just inside the 44x44" area... However, when i do my water table, my cut area will be reduced to 44x44" as the water table will fit inside the rails, not just on top... The lip of the water table will sit on top of rails now... I will post some photos i took a little while ago... later tonight!....

Also, even with 48" rack... you really have to have the limit switches set exact to keep from running it off the ends... notice i put dead stop bolt in there as well to just make sure!... If you want a 100% true 48x48" cut area, i would recommend buying the longer gear rack and cutting it around 52" for a little extra "comfort" room!..

winegar
03-21-2011, 11:06 PM
http://i968.photobucket.com/albums/ae170/warchildzx7/CNC%20Plasma%20Table%20Build/Slats2.jpg
http://i968.photobucket.com/albums/ae170/warchildzx7/CNC%20Plasma%20Table%20Build/Slats1.jpg
http://i968.photobucket.com/albums/ae170/warchildzx7/CNC%20Plasma%20Table%20Build/Slats3.jpg

steetyj
03-22-2011, 07:43 AM
Wow that looks great. I will definitely be modeling my build after yours.

I plan on cutting mostly thicker plate, 3/16 -1/4". Occasionally, I will be cutting thinner gauge sheet metal, as well as, thicker stuff up to 3/4".

I know you went direct drive for your stepper motors, but I am wondering if I would be better off with a belt driven reduction setup. Do you have resources that you used to determine these kind of things? I am liking the DIY kit from tulsaturbo...Do you know if he offers the gantry kit in a belt reduction setup?(I am guessing you can get away with smaller steppers with a reduction setup but im not sure)... and is his z axis kit compatible with a DTHC system?....I should probably be asking him these questions directly but I dont think I am close enough to making a purchase to bother him lol

In the mean time I am going to try an learn as much as possible from this site.

Down&Dirty
03-22-2011, 02:07 PM
winegar,

It looks great with the slats in there. I know you have thought about the water table design a bit. It looks like you could make a tray that would fill that 44x44 area for a water table. Then trim up the lips of your slat system so that they work with the tray in place. This would let you keep the 48x48 cutting area for when you need it, but also let you move most of your cutting in to where it is over the water table. It might not be an ideal water table, but it would let you cut half sheets. My water table keeps the water 2 inches below the material. I still get some smoke from it, but most of the trash is captured in the water. After just a couple weeks of testing the table has about an 1/8" of sludge in the bottom of it. Make sure you setup a method for washing out the table.

cobretti
03-22-2011, 04:07 PM
Looks awesome winegar...I got my v-bearings yesterday at least...then this morning I find that my order for the linear rails was never put in because I don't have an account. So why send me a quote then and when I reply to go ahead they do not say anything for a week! :mad: So still trying to get that sorted out today.

It is great to see the slats that you cut yourself and I hope I will have the same success. Very interested in the water table design...

The one other part I have still not ordered and completely on the fence about is the driver - your TB board seems to be working out well and doing the job.

linkintiger
03-23-2011, 12:02 AM
winegar-- just wonder why do you need that floating plate for plasma cutter i thought mach3 have option to adjust starting z-axis high starting point.

madtownrob
03-23-2011, 10:39 AM
Just went through this complete build - very nice job. Like the post above me I do have some newb PLASMA mach3 questions. I have used MACH3 for 4 yrs now and I am familiar with it and it's setting on Mill/Router so I know what's going on there.... but confused on the floating head/touch off. I've built 3 routers now and a friend has asken me to help him build a Plasma table. I know I can do the mechanicals - just really confused about the Z and the toruch height touchoff

The Z head goes down a certain distance, then the floating head contacts the plate, then Z head moves off the plate. What in mach or the Gcode is making it do this?

Is this torch turning off during all rapid moves?

Is this truely a manual touch off before starting to cut - then just running the G-code?

You mentioned a refall home in an earlier video - I use a refall home to bring the gantry and Z back to the table/machine coordinate 0,0,0 home switch location and have never done this while in a cut, in the g-code, like I seem to have viewed in one of the videos. also really looks like it is just homing the Z and then going to job 0,0 - right?


Looks like you have a great solution to not having a THC - would love to not have to buy one and go with the system you are using - I am just really confused on how it actually works. Any information is greatly appreciated and sorry for the "newb" question.

-Rob

winegar
03-23-2011, 04:24 PM
I plan on cutting mostly thicker plate, 3/16 -1/4". ....stuff up to 3/4".
I know you went direct drive for your stepper motors, but I am wondering if I would be better off with a belt driven reduction setup.

If you are cutting thicker stuff... Personally, I don't see any reason to spend more money.... If you are cutting thicker... you are cutting slower, right?... You see what i'm cutting @ 320ipm.... If i was cutting that in .25" plate... I would be running @ 40-80ipm... much slower... so, where would the extra $ spend be going?... I am totally happy with the parts i'm pulling from this setup at this time... Only thing (other than the water table) I'm going to modify is drilling (1) hole and taping it in each leg and filling it with sand... to add a little more weight to her... as at 320ipm.... she moves some and it throws her to and from a little... (and i might get larger casters!)


Down&Dirty:... Not a bad idea!.... 99% of my cutting will be over the "water"..... but i will probably bring the water about to contact... I just cut those 15 slats... and WOW... everything is dirty!

cobretti: My driver board has been good to me so far!... Would I buy it again knowing now what I did then.... yea, I think so... I mean don't get me wrong... the Gecko 540 is nice... but I don't feel that i need(ed) it... This is going to work out for me!

linkintiger:.... If your cut surface is not 100% clean and perfectly flat.... I'm talking withing 1/5mm then your cut quality will differ... That is like the problem I was having cutting my slats.... each one of those "bars" I had my stock sitting on was all bent just a little in one direction or another... so my cuts in some areas was perfect.. and in others... not as pretty... in that case... I do not care... but when i'm cutting more exact stuff... It will matter.... Do you need it to get started... No... but it's nice!

winegar
03-23-2011, 04:45 PM
Just went through this complete build - very nice job. Like the post above me I do have some newb PLASMA mach3 questions..........confused on the floating head/touch off.
-Rob

Hey Rob!.... Well to answer some of your questions if I'm reading right... I make sure I "Ref All Home" to make sure where i want to start my cut on the table... as unlike you, i'm not that used to running this software yet and setting my "homes" in SheetCam.... So, this part is all trial and error for me... I'm now learning how to set this up in SheetCam so i do not have to manually move my torch where I think it should start... as I was trying to cut all my stuff in the center of the table... and was stoping and going quite a bit trying to get everything dialed in.... so, I was "Ref All Home" a lot!

Torch turns off when the cut is not needed..... so, yes....

The torch comes down... tip resting on the material, sides my touch plate up activating the switch, z pulls up the preset distance from switch deactivation and come up another .15" for firing the torch... then pierces to .06" then carries out the task at hand!

Hope this helps some!

Down&Dirty
03-23-2011, 07:17 PM
winegar,

you will probably be able to capture more with the water right up against the metal. I will have to try that this week and see how much better things are. Mine is only that low because the tank that stores the water only holds 32 gallons and I designed the table around 55 gallons. You will love the little points on your slates. Mine are flat and I constantly have to seperate them from the material that has been cut. I just can't get rid of the dross with this cheapo cutter. Filling the legs with sand will help, but what about just making a metal storage rack down there. You will have a water table to catch the mess so you could store things under it. Mine has a big flat file from and engineering office under there to store parts and commonly cut shapes.

linkintiger
03-23-2011, 07:36 PM
ok so you turning on and off plasma cutter with mach software? if yes did you connected to the 4 axis board or separate electronic control board?

winegar
03-23-2011, 09:32 PM
ok so you turning on and off plasma cutter with mach software? if yes did you connected to the 4 axis board or separate electronic control board?

Yes and No.... Yes, the Mach3 is turning my torch on and off automatically...
No, it is not a seperate board... Just the same board in all my photos!... It connect to the "spindle" connection!... Very easy!

SheetCam is what inserts the torch on/off commands automatically and Mach3 executes those commands!

winegar
03-23-2011, 09:35 PM
Dirty:... I might do that too... I will place all my electronics under the table when the water table is done!.... Keeping it all clean and neat!

steetyj
03-24-2011, 09:21 AM
If you are cutting thicker stuff... Personally, I don't see any reason to spend more money.... If you are cutting thicker... you are cutting slower, right?... You see what i'm cutting @ 320ipm.... If i was cutting that in .25" plate... I would be running @ 40-80ipm... much slower... so, where would the extra $ spend be going?... I am totally happy with the parts i'm pulling from this setup at this time...


Not sure I am following here...

For thicker metal, that I would be cutting, my ipm would be slower. Would this not make a gear reduction better in my case? allowing me to use slightly smaller steppers and gain resolution and the necessary torque by going with a reduction setup? Maybe I am completely off base here with my understanding...

I am hoping that by the time I get around to my build the guys at No Sleep Studio will offer gear reduction as an option for their gantry kit.(EDIT: Looks like this product is already in the works on their website!)

steetyj
03-24-2011, 12:45 PM
One other question...

What is the distance between the top of your cutting surface to the top of the 1x2 tube that the x-axis rails bolt to?

start here
03-24-2011, 06:43 PM
Not sure I am following here...

For thicker metal, that I would be cutting, my ipm would be slower. Would this not make a gear reduction better in my case? allowing me to use slightly smaller steppers and gain resolution and the necessary torque by going with a reduction setup? Maybe I am completely off base here with my understanding...

I am hoping that by the time I get around to my build the guys at No Sleep Studio will offer gear reduction as an option for their gantry kit.(EDIT: Looks like this product is already in the works on their website!)

You're not off base with your understanding. The gear reduction will do what you said. You just need to ask yourself why you want it?

For a table of similar size, using a gantry of similar weight, the 420oz. steppers have more than enough torque to do the job. The gear reduction is simply not needed.....
You will not be able to see/appreciate the extra resolution it will give you (especially with a plama cutter).
The money you spend on the gear reduction will be much more than what you save by using smaller steppers.
You are just adding another "item" to your table build. Just one more thing to buy, install, troubleshoot, maintain & to go wrong, etc

steetyj
03-24-2011, 07:02 PM
Ah I see where your coming from. Thanks for the explanation

winegar
03-25-2011, 06:44 PM
http://i968.photobucket.com/albums/ae170/warchildzx7/CNC%20Plasma%20Table%20Build/th_LandRoverVideo.jpg (http://s968.photobucket.com/albums/ae170/warchildzx7/CNC%20Plasma%20Table%20Build/?action=view&current=LandRoverVideo.mp4)

winegar
03-25-2011, 06:54 PM
A few photos of what i just cut..... 16gauge steel....They were cut @ 220ipm @ 35amps.... I was getting cleaner lines @ slower speeds & lower amps.... I also reversed the image in autocad to looks as i'm cutting this upside down, so that this is cut on the table right side up, unlike the photo on page #13 of my build..... This table is so light i really need to fill the legs with sand, as it moves a bit!.... I'm not sure at this point if my slight waves in my letters are from the table moving, the plasma cutter, or a setting i have in the software.......However, I should have my e-track installed this week... Then she will pretty complete then!....

http://i968.photobucket.com/albums/ae170/warchildzx7/CNC%20Plasma%20Table%20Build/LandRover16ga1.jpg


http://i968.photobucket.com/albums/ae170/warchildzx7/CNC%20Plasma%20Table%20Build/LandRover16ga2.jpg

MonoNeuron
03-26-2011, 09:09 AM
double post deletion.

MonoNeuron
03-26-2011, 09:09 AM
That wobble in the cut could be from several things.

1 - from slop in the v guides
2 - from slop in the rack and pinion drives
3 - flexing on the Z axis guide as it is so long
4 - wobble in the whole machine, as you say, from not being heavy enough.
5 - movement of the slats that the job is sitting on.

Nice build by the way.
I hope you make some good parts with it and get to sell a lot of them and recoup some money back as it looks like you will have it for a long time to come.
Be careful of all the smoke as it's a killer....literally.
Have fun. :-)

linkintiger
03-26-2011, 12:01 PM
i think it's from IVT rails i ordered them thru local distributor and they send it back because didn't pass quality inspection, that's my 2 cents.

Down&Dirty
03-26-2011, 04:58 PM
I had a big response typed but and looked at the pictures again. Looks like the noise is only coming through in one axis. I am not sure how you positioned it to cut, but whatever axis is cutting the top and bottom of the letters seems to be the problem. You could try adding some weight to the table. Just toss a bag or two of sand on the slats where you aren't cutting. That should prevent the table from wiggling around until you build your water table. If that doesn't fix it try clamping the work piece to the table like they were before. The points on the slats reduces the contact area and lets that part move around a little easier. Then go back and triple check that nothing is loose on the table. You guides, bearings, bolts in the motor mounts. nothing can be loose or you cut quality will go to crap.

winegar
03-26-2011, 06:50 PM
I going to do some testing today... cut the same part with different settings and see if i get the same results... And thanks for the sand idea... I will run to Lowe's and buy 2 bags... as I will need some to fill the legs anyways.... All the bolts and etc are tight and absolutely not slop in the rack and pinion... all V-bearing & rails are very snug.... I have tried to wiggle them in every direction... and not even a budge in any direction.... Will post up some photos tonight... Thanks guys for ringing in!...

Later!

BBR
03-26-2011, 06:57 PM
You might want to think about building some leveling feet. I would imagine running it on wheels might be adding a little bit to your problem.

Mongkol
03-27-2011, 02:56 AM
Winegar,
I have one idea.
Try cutting the simple of rectangular.
Have a look at the edge of cutting.
The edge after cutting should be smooth. not have wobble.
If you still see the wobble,I am sure the problem is effected from machanic system. ( may be X-axis or Y-axis)
*************************************************
Let me know if you are testing.

Mongkol

linkintiger
03-27-2011, 12:54 PM
or maybe just the plasma nozzle is vibrating at higher speeds?

winegar
03-27-2011, 08:39 PM
Got a lot done today.. Will post up a bunch of photos tomorrow....

linkintiger
03-28-2011, 05:59 PM
WINEGAR: is your bronze sleeve bearing fit loose on the motors shaft and very tide inside angle spur gear?

vdubjim
03-29-2011, 04:51 AM
I say think SIMPLER first.

Looks like a .jpg cut on my plotter........

Is the image file your using "clean" edges smooth, like originating from a vector? eps or .ai?

ALSO hows your tip on the gun?

winegar
03-30-2011, 12:50 PM
Checked all my nuts and bolts.... and pinion... everything very snug.... want to get the legs filled with sand to help a bit... and maybe take the wheels off and put feet on it.... to see if that helps.... Been real busy last few days... Think I found a new job!... Been doing paper work for days now... Hope it all works out!... Thanks guys, and I will keep you posted!

steetyj
03-30-2011, 02:35 PM
Do u think the sand will add enough weight? doesnt seem like it will be enough. If you did it over again would u use heavier wall tube? I have lots of 2x2x.25 laying around which would get me started...i know its overkill but maybe it wouldnt be a bad idea

BBR
03-30-2011, 04:20 PM
Winegar
We don't want excuses! We want results... Now get started and fix it!!! :)



Good Luck on your job opportunity.

winegar
04-03-2011, 08:12 PM
Hahaha... yea, about that... BBR.... lol....

I never really figured the problem out with those ripples... but still works great @150ipm or less for thin sheet metal... So, i'm pretty bored trying to figure it out right now... I have a lot on my plate right now... Interview after interview and automotive repairs to get done, I can't put any of that off as that pays my bills... I just know that if nothing ever changes at this point, I can still cut that thin stuff just fine and will not ever have a plasma cutter powerful enough to cut any 1" plate at 300ipm that is for sure!...

Anyways... I cut some chrome plated .25" plate today... Just messing around... I'm going to post these photos, but also start a new thread as well, just for my questions and problems that i'm having....

I will keep everyone up to date on finishing up this project as i'm still trying to get someone around here to brake some sheet metal for me to use as trays for my e-track to lay into!... When i get this part figured out... Water table it is!...

The photos below are of .25 Chrome Plated Steel.... Nozzle is very close to the surface, just enough to knock the dust off it... Cutting at 40ipm @ 40amps.... Clockwise.... The start goes in at ARC... and comes off straight... I have tried it every way i can think of and it still will not cut that last little bit, before the torch come straight out... I tried ARC, PERP, TANG, NONE... and what it seems to me is the plasma stream takes the easiest path at that last little bit and skips to where it has already been cut at the beginning!... Someone school me... Please!..

http://i968.photobucket.com/albums/ae170/warchildzx7/CNC%20Plasma%20Table%20Build/ChromePlate1.jpg

http://i968.photobucket.com/albums/ae170/warchildzx7/CNC%20Plasma%20Table%20Build/ChromePlate2.jpg

http://i968.photobucket.com/albums/ae170/warchildzx7/CNC%20Plasma%20Table%20Build/ChromePlate3.jpg

http://i968.photobucket.com/albums/ae170/warchildzx7/CNC%20Plasma%20Table%20Build/ChromePlate4.jpg

winegar
04-03-2011, 08:17 PM
The piece that is loose on the plate, you can see i took it out with an air chisel... The dross comes right off instantly when the air chisel hits it... but then you have the beat the hell out if it to get the piece out as it is cut sort of skewed and that one little piece holding it, will not let it fall out... and just put a lot of angle on the sides, until you just drive it out!...

Everything looks straight to me... I used a level on the gantry, cut surface and top rails... and everything looks right.. Is it normal to have the plasma cut at an angle like that?... I'm guessing no, since it is only very slight one direction and very skewed the other!..... I'm guessing i need to find a way to put some corrective angle on this thing!???

c2gleaner
04-03-2011, 08:53 PM
Since the torch you are using was intended to be hand held there is nothing that says the nozzle is mounted in the handle square and true.
I would view making adjustments to be like a table saw or any other precision cutting device. All adjustments are made per what the cuts dictate necessary. My guess would be that simply rotating the torch as little 45 degrees will produce different results both x and y. All though this is not a solution it will demonstrate my point.

Regaurding the curved lines I would say speed has a lot to do with it. I realize speed and heat a relative so if you want to clean up the look of the cut my guess is this is where to start.

Down&Dirty
04-03-2011, 09:24 PM
I am not going to be much help here as I am having the same problems when cutting thicker metal. I have never touched a HF cutter, but will the swirl ring only go in one way? I found that mine will assemble correctly no matter how I put it in there, but one way it cuts almost correctly and the other has a monster angle in it. On your sharp corners in thicker stuff like that you want to pause a second or loop the corner. Looping is the better way and will produce a much better corner. As for the end of the cut. I do arc lead ins on thin stuff and perpendicular on thick stuff with no lead out. The plasma definitly wants to take the path of least resistance and will do exactly what you see there. Slowing the feed rate at the end might do it, but I was cutting 3/8's with a 30amp machine yesterday and with a perp. lead in and no lead out it was cutting all the way through.

I hope someone chimes in on the angle though as it is a problem I have also. I can cut something out and one side is perfectly what I want, then the next is angled. Then square again, angle, nothing is consistant. It is not that in the X I get angle and Y is square. It changes non stop so I haven't been able to track it down.

I wonder if the noise in the highspeed cuts are due to torch height. Could you be a little to high off the metal?

c2gleaner
04-03-2011, 09:33 PM
Down&Dirty
I'm taking a shot in the dark here but if this angle thing is random then my thoughts go to poor grounding of the torch to metal being cut.

winegar
04-03-2011, 11:33 PM
I wonder if the noise in the highspeed cuts are due to torch height. Could you be a little to high off the metal?

It very well could be... and with the angles of the torch being off... I bet that will make all the difference!...

Here's a final shot of the same work piece.....Org on the left, new on the right... I rotated the handle CCW 45deg and noticed a definite difference.... Then loosened the clamp and tilted the top toward the left, cut, repeat, cut.... moved all the way i could... cut and here is the results!... Camera angle was a little off, its late and i'm tired!.. but it is almost perfect!....Still a little ugly at the end where the cut ends... I wire wheeled the new one too, just to take the edge off...

http://i968.photobucket.com/albums/ae170/warchildzx7/CNC%20Plasma%20Table%20Build/BeforeAfter.jpg

You can certainly see the difference!... I'm feeling pretty confident about this now!... When I make my final z-slide plates.... I will incorporate an adjustment for this.. to correct a little more... but for now... that is tilted a far as i can to correct for both angles!... This is what I needed to get back on track!

JasonCarter
04-04-2011, 01:24 PM
Based on my experience with a Hypertherm 1000, your angled cut problem looks like a blown out torch tip to me. All you have to do is pierce too close a few times to blow it out. Look at the hole in the tip and make sure that the hole is nice and round and centered.

Your jagged cutting on the thin stuff is probably a the rigidity of your machine. As you have discovered slowing down helps. Reducing the acceleration a bit would probably help some too. You can assess the rigidity by putting your torch down in the cutting position and pluck the end of it with your finger and watch it oscillate. See if it corresponds with the frequency and amplitude of the jags you are seeing.

Edit:
In case it is not obvious, make sure the power is off to your plasma torch when you do this. Looking down the tip or having your fingers near the tip is something you never want to do with the power on.

winegar
04-04-2011, 04:26 PM
Jason:... I'll check that out.... I just changed the cone and electrode... but yea, i did have a couple of times the torch fired with the tip making contact... damn... I did not think of that!... Will check it out today!

As for movement in the torch in the cut position... It is VERY secure.... I even cut some parts with my hand resting on it to make sure it is not any type of movement or vibration... and it still cut every part the same may... (on the thin stuff that is!)....

plain ol Bill
04-04-2011, 06:50 PM
Just something to think about - you mentioned chrome plated sheet. Be really careful of fumes. Chrome is NOT good for you.

winegar
04-07-2011, 09:43 PM
Roger that Bill!..... Thank you!

Something i just cut for my parents...

http://i968.photobucket.com/albums/ae170/warchildzx7/CNC%20Plasma%20Table%20Build/Oval.jpg

vdubjim
04-08-2011, 03:58 AM
so.......

what was the fix? Rotate the torch head. and tip or?

winegar
04-08-2011, 05:32 AM
as for right now... Cutting at 150ipm!... And yes, corrected the angle a bit and changed nozzles to cut the thicker stuff... worked like a charm!... Heading out on vacation... back in a few days!

plain ol Bill
04-08-2011, 08:26 PM
Winegear your timing is great - I cut out the same oval a few days ago myself.

mkgunter
04-09-2011, 01:47 PM
You have done a remarkable job on your project! Will your machine cut corrugated material, will it follow the groves up and down?

winegar
04-12-2011, 10:09 PM
Hey bill!... throw up a photo of that one!.... as for corrugated metal.... hell, really i dont know!... I bet it can be arranged.... That would just be set up in sheetcam right?..... Or changing the setting on mach3 for the offset switch or something?.... Or DTHC?.... Anyways, one way or another i'm 100% sure it can... might cost a few $ more... but yea... i'm pretty sure!

northriver
04-14-2011, 08:11 PM
Just finished reading through your entire build log ... very impressive work!

I am not sure if you mentioned this, but did you have a set of plans when you started this project? And do you have a rough idea of what it all cost you?

winegar
04-15-2011, 06:43 AM
Not really.... Seen some others work and took after it.. I have some nice stuff cut now and quite happy with it!..... as for total cost... I really have no idea... I priced stuff through out the build on this thread... without me going through all my post to add it up.... approx $1200-$1500 +/-....

winegar
04-15-2011, 06:44 AM
Will post up some new photos today!

PEU
04-15-2011, 06:56 PM
tagged for further reading :)

winegar
04-15-2011, 11:13 PM
Here's a few photos of what i just drew myself and cut.... Will have a few photos of the finished product up tomorrow... This will be my tray that my cable track will run on... for the gantry anyways!... Still working on the rest!... Have a lot of local people pretty interested and had a few people over to check it out!...

Later guys!

http://i968.photobucket.com/albums/ae170/warchildzx7/CNC%20Plasma%20Table%20Build/Tray1.jpg

http://i968.photobucket.com/albums/ae170/warchildzx7/CNC%20Plasma%20Table%20Build/Tray2.jpg

http://i968.photobucket.com/albums/ae170/warchildzx7/CNC%20Plasma%20Table%20Build/Tray3.jpg

http://i968.photobucket.com/albums/ae170/warchildzx7/CNC%20Plasma%20Table%20Build/Tray4.jpg

cobretti
04-16-2011, 12:56 AM
Sweet - looking forward to seeing end result!

On another note PBC has really disappointed on my end. Tomorrow I pickup my final parts from the US but still without my rails. It has been 15 business days and when I called yesterday was told shipping is delayed by another full week. This means I will actually only receive it in 2 weeks as it has to be shipped to Canadian warehouse :mad:

I Lean
04-16-2011, 12:59 AM
Sweet - looking forward to seeing end result!

On another note PBC has really disappointed on my end. Tomorrow I pickup my final parts from the US but still without my rails. It has been 15 business days and when I called yesterday was told shipping is delayed by another full week. This means I will actually only receive it in 2 weeks as it has to be shipped to Canadian warehouse :mad:

Don't feel too bad, I ordered mine on March 4th and am still waiting. Scheduled shipping date is April 22nd. Not too bad for a 7-10 day lead time, huh? :rolleyes:

BBR
04-16-2011, 01:04 AM
Cobretti I feel your pain I ordered mine about 4 weeks ago. After 2 weeks I called to see what was going on and they said that someone had dropped the ball and the order wasn't placed so here I am still waiting. I'm building a little different frame design so I cant even get started on my frame till I have the rails in hand to verify clearance.

cobretti
04-16-2011, 01:06 AM
That's crazy - what the hell! - so much for their ad stating they run 24/7

MetalHead6263
04-16-2011, 02:16 PM
P B C took about 5 weeks to ship my profile . Apparently they have issues with production . The profile was well packaged and top notch quality when I recieved . The hardened rails are for real , I smoked a saw blade trying to cut the end off . Ten days turn arround seems like a pipe dream

MetalHead6263
04-26-2011, 03:44 PM
Winegar , whats the spacing on your slats and how tall are they ? Thanks

rodder
04-29-2011, 08:09 PM
Can anyone explain the two eccentric bushings used on the bottom of the gantry carriage? In comparison of the concentric ones everywhere else?

Thanks. Have a build list for this at $1900 minus the cutter, cad software, casters, nuts and bolts, and those bushings.

Jerry
Boise

I Lean
04-29-2011, 08:28 PM
Can anyone explain the two eccentric bushings used on the bottom of the gantry carriage? In comparison of the concentric ones everywhere else?

Thanks. Have a build list for this at $1900 minus the cutter, cad software, casters, nuts and bolts, and those bushings.

Jerry
Boise

They're used to adjust the spacing of the V-bearings against the rails--or to provide tension, so there's no slop.

rodder
04-29-2011, 09:05 PM
Oh crap, thanks. All makes sense now. My wife had to explain an eccentric bushing to me first. I thought it had something to do with having a square head. You can see the off centered bore in the pics.

Thanks for the quick reply and to everyone else especially winegar for this great thread. Never thought I might have one of these machines for myself. Very exciting. I have two boys who will love all aspects of this process. Self included.

winegar
05-02-2011, 09:29 PM
Here's a few updated photos.... The cable track is a little high mounted to the back of my Z... but it works great... I might remake my bracket.... but it works really well.... so, maybe not?..... Got much more important things to work on!... lol....

http://i968.photobucket.com/albums/ae170/warchildzx7/CNC%20Plasma%20Table%20Build/IMG_0523.jpg
http://i968.photobucket.com/albums/ae170/warchildzx7/CNC%20Plasma%20Table%20Build/IMG_0520.jpg
http://i968.photobucket.com/albums/ae170/warchildzx7/CNC%20Plasma%20Table%20Build/IMG_0519.jpg

winegar
05-03-2011, 11:04 PM
Here are a few cut samples of what i have cut in the last 48 hours... I basically cut these out and knocked the dross off the back with a few taps of a hammer and shot some paint on them... These are just little trinkets for some people at work.... The red ICP Hatchet man in red, Rammstein Logo (non straight lines on purpose) in hammered black finish and the Deer as well.... I drew each of these/traced them... Turned out nice I think!....

http://i968.photobucket.com/albums/ae170/warchildzx7/CNC%20Plasma%20Table%20Build/CutSamples.jpg

linkintiger
05-04-2011, 10:20 AM
good job i see you improve your cutting lines a lot. Did you find out what was the problem on the beginning of the project?

winegar
05-04-2011, 10:31 AM
Thanks!.... No not really... I'm getting perfect cuts, cutting @ 100ipm or slower... That is what these were cut at.... I had a friend come over the other day to check out my setup.... He has a very large one at a machine shop somewhere in Fla, told him of my problems at higher speeds... He checked it out and said it has to be in the software somewhere or perhaps the driver-board.... as if you pull the pendent up and run the X-axis and then the Y-axis... the Y is noticeable smoother..... and i seem to be only getting the "ripple" effect on one axis as well.....

I'm ordering some new Cable Track that I can run my plasma torch lead inside here in a few days, and I may be ordering a Machine Torch end as well and get away from this hand held unit, and redesigning my Floating torch mount too....

If you speed her up to 200+ipm you can visually see it shimmy and the end of peaks, however there are NO play in anything.... We are figuring that it has to be software related somewhere!.... Till then.... 100ipm, I've got too much on my plate to be digging too deep right now.... :-D

winegar
05-09-2011, 05:53 PM
Guys... I really need help finding a way to put Text in my .dxf files... I have, but I suck at Autocad... and I'm currently using emachineshop for there free .dxf creator... I can make anything on there... but making a dang sign... I cant make any text!....

I Lean
05-09-2011, 06:35 PM
I was JUST dealing with this....and found this old post. Little program, and so far works great: http://www.cnczone.com/forums/autodesk_software_autocad_inventor_etc/2154-anyone_know_freeware_program_turn.html

Kentuckyfarmer
05-10-2011, 06:56 AM
Do a search for DESKENGRAVE its free does text with arcs etc. works for me and the price is right
Mike

winegar
05-10-2011, 07:03 AM
Thanks guys!... I will check those out today.....

I Lean
05-10-2011, 07:53 AM
I just got started moving my machine (drawing with a marker...) and I noticed some ripples at higher speeds. Looks to me like the IVTAAG rail flexing torsionally when the machine makes direction changes. After I get things more dialed in, I may look into options for increasing torsional rigidity.

You can check it out easily just by pushing on or slapping your Z axis and watch it vibrate. :(

Here's video of mine: this is at 80ipm, but at 160ipm you could see the ripples on the M when it reversed direction.

YouTube - MVI 2382

cobretti
05-10-2011, 09:53 AM
winegar just have to say thanks again for the great thread - I constantly find myself returning for reference :cheers:

Today is supposed to be the day I finally get my Y axis rails - waiting for the call...

I also need to actually buy a plasma cutter today - I am going for the Everlast brand. They have new units which they say include a CNC port in the back and now use machine torches as well.

Question for those in the know just how much work is it to get a high frequency unit working. They have a blowback type 50A and a 70A HF on special for almost the same price. I am using shielded cabling but do not have a ground rod in the garage. Is it really required? Can I piggyback off the grounding in the basement about 10-15 ft away or must the ground point be as close as possible?

Thanks in advance

cobretti
05-10-2011, 09:56 AM
I just got started moving my machine (drawing with a marker...) and I noticed some ripples at higher speeds. Looks to me like the IVTAAG rail flexing torsionally when the machine makes direction changes. After I get things more dialed in, I may look into options for increasing torsional rigidity.

You can check it out easily just by pushing on or slapping your Z axis and watch it vibrate. :(

Here's video of mine: this is at 80ipm, but at 160ipm you could see the ripples on the M when it reversed direction.

YouTube - MVI 2382 (http://www.youtube.com/watch?v=NlrL5OZSHGw)

Carl I like the holder you have in your test, is that for a machine torch?

Forgot to ask - do you have a build log?

I Lean
05-10-2011, 11:17 AM
Carl I like the holder you have in your test, is that for a machine torch?

Forgot to ask - do you have a build log?

The mount is my homebrew of a magnetic breakaway for my machine torch, and the sharpie holder is just a different size chunk of tube on the magnet. I'll snap a pic later tonight after I get home.

No build log, I prefer to just muddy up other people's posts. :D

cobretti
05-10-2011, 01:10 PM
cool thanks!

Also just got call for my rails - WOOT:banana:

winegar
05-10-2011, 03:53 PM
I Lean.... So your gantry is flexing some when making direction changes?.... That might be my problem as well... If I take my hand and try to move it... It does not really move very easily... but when watching it @200ipm I can see my torch tip wiggle and that is the problem I have had... I might run a 1/8" piece of cold rolled on the underside of my gantry and strengthen it and keep it from deflecting... What have you come up with?....

I though it was in my motor tuning up until i seen your post and watched mine!... :-D.... Should be a simple fix though!.... Let me know what you are thinking!

I Lean
05-10-2011, 03:59 PM
I Lean.... So your gantry is flexing some when making direction changes?.... That might be my problem as well... If I take my hand and try to move it... It does not really move very easily... but when watching it @200ipm I can see my torch tip wiggle and that is the problem I have had... I might run a 1/8" piece of cold rolled on the underside of my gantry and strengthen it and keep it from deflecting... What have you come up with?....

I though it was in my motor tuning up until i seen your post and watched mine!... :-D.... Should be a simple fix though!.... Let me know what you are thinking!


Yes, if I grab it at the top (the motor for the Z axis) it's fairly easy to get it to twist a bit. It's harder toward the ends, easier in the middle naturally. In fact, I'll bet if you cut the same part in the middle of your table, and again over on a far side, you'd see a difference in the amount of "wiggle".

I've come up with nothing so far beyond brainstorms. I'm thinking increasing torsional rigidity will be more a function of the size of whatever you add, so maybe a 1.5" aluminum box tube bolted under the existing gantry rail would help.

I'm gonna wait until I actually cut some metal first, before I start modifying it more. ;)

I Lean
05-10-2011, 11:22 PM
Here's a pic of how I did my magnetic breakaway mount for the torch. It seems like it will work, but since I have yet to use it I can't be sure. :(

http://i87.photobucket.com/albums/k139/cbwhitmore/Plaz%20Table/IMG_2383-1.jpg

Mongkol
05-11-2011, 08:36 AM
Carl,
Look well for the floating head. I guess you are using the thermal dynamic plasma cutter. Do you use THC for your machine ?

Mongkol

I Lean
05-11-2011, 11:37 AM
Carl,
Look well for the floating head. I guess you are using the thermal dynamic plasma cutter. Do you use THC for your machine ?

Mongkol

It's a Hypertherm plasma. I do have THC, since I'm using the CandCnC Bladerunner Dragon-Cut for my electronics. That's what I need to play with next. :)

Galtor
05-11-2011, 03:46 PM
I lean,
It looks to me like your pen holder is not holding the pin tight. If you watch the top of the holder the washers and bolt seen to move around front back side to side.
Could this be your problem?

Winegar,
I have run my machine (a clone of yours) except the z axis which I home brewed at 350 ipm and I do not get the wiggle. I will be cutting my slats at 350 ipm this weekend and will try to post pictures.

I Lean
05-11-2011, 08:43 PM
I know the marker moves around--but I don't care, I didn't really intend it to draw pictures. :p The wiggle is visible in the Z axis separate from the pen's motion.

winegar
05-11-2011, 09:50 PM
too tired to play today.... 2nd day of the new job..... I have me a job running cnc robot welder now.... about the size of a short bus!.... should be taking my welding cert next week i hope... big pay bump!... Will make a few parts tomorrow and check about either doing some tubing or maybe a 1/4" alum plate on the bottom of the rail... we will see... They have so much fun toys at my new job.. wish i could use some of it for just a day!... I would stamp me out a water tray in one piece and make some pretty stuff!... lol... later guys!

winegar
05-12-2011, 08:27 PM
Cut some 14ga stainless today... Not impressed at all.... Is there some trick to cutting stainless?.... Lines were not clean like the reg steel i have been cutting.... Took a lot to clean it up to where i would even give it away!......Anyone?

winegar
05-12-2011, 08:32 PM
Learning to weld all over again at work today... Using some nice Miller welders.... This thing is about the size of my motorcycle!... I can weld pretty good with the crappy 160amp I have now...I've gotten used to it..... but this thing is just badazz!... Taking my welding cert test next week... They have some wicked Laser cutters as well... and will be getting a 5000watt model next month... I'm told about 1.5million worth.... I bet they dont let me play with it?...

On a good note.. Picked up a piece of 1/4" alum plate today to bolt to the underside of my gantry... and see if that stiffens her up!

Mongkol
05-12-2011, 08:43 PM
Winegar,
Do you have THC with your machine ?

Mongkol

winegar
05-12-2011, 09:03 PM
Winegar,
Do you have THC with your machine ?

Mongkol


No not yet..... I tried cutting heights of .04,.06,.08,&.10 with 35amps and varying speeds... all with the same results...

Do you have to cut on some gas or does this suppose to work with air???

JasonCarter
05-19-2011, 02:48 PM
Here's a pic of how I did my magnetic breakaway mount for the torch. It seems like it will work, but since I have yet to use it I can't be sure. :(

http://i87.photobucket.com/albums/k139/cbwhitmore/Plaz%20Table/IMG_2383-1.jpg


After you use it a bit I'd like know how hard it is to clean the steel dust from it. Also you might want to consider a switch to cut the power to the torch if it gets knocked loose.

I Lean
05-19-2011, 03:51 PM
After you use it a bit I'd like know how hard it is to clean the steel dust from it. Also you might want to consider a switch to cut the power to the torch if it gets knocked loose.

The dust wipes right off after turning the magnet "off". I was planning on adding a switch, but for now I've just been babysitting with my finger on the E-stop switch. :D

winegar
05-19-2011, 06:47 PM
Nice... So, do you have a way of putting the torch back on in the EXACT same position as before if it were to be knocked off? I only as as it would completely through off your touch switch even if you were off .01".... Look good though!!!

I Lean
05-19-2011, 10:28 PM
Nice... So, do you have a way of putting the torch back on in the EXACT same position as before if it were to be knocked off? I only as as it would completely through off your touch switch even if you were off .01".... Look good though!!!

The magnetic block has a "V" in it, so it does center the tube quite well. It can vary up and down anywhere, but that doesn't matter since the torch does the whole touch-off sequence when you start cutting anyway.

balimach
05-23-2011, 07:22 AM
I`ve been following your post from first page, and there is a summary of question in my mind ;


Do you use air dryer on your compressor, hypertherm seller tell me the compressor air dryer can give the best result ( minimize the dross ) to filter the water before they get into plasma unit, and it cost for approx. US$ 2400…. Very expensive Huh……
If I saw your plasma unit, you are not using Hypertherm, why ?
Do you think change the plasma hand torch into a plasma machine torch can result a better quality of cutting ?

Somesays that X axis can use a timing belt, which is better ? timing belt or rack & pinion gear as yours ?

newbie question :
Ini this 4 x 4 table cases, Do we need an adjustable plate on the bottom of table legs in order to keep the table flatness?, for the big size of table i`m preety sure we need to attach the foot adjuster, but for 4 x 4 table, I need more opinion…

For Z axis, is it the floating Z from the tulsaturbo`s store, or you build it your self?
Have a planning to use MP 1000-THC or THC 500 ?? if the answer`s no, why ?


I`m realy sorry if there is repost question….
Thank you for sharing….

-Harry-

winegar
05-23-2011, 03:09 PM
Harry......

Well I do have an air dryer but i'm not using it yet... That probably would help things a bit!... Maybe I will get on that in a few days... Cant afford a Hypertherm!... If i could... I would by one... till then, I'm stuck with the one i have.... But overall i'm pleased with it... and yes, I truly believe if i switched my hand torch to a machine torch, I would/could get better results as well!... Honestly, I'm not the one to ask about timing belts... Only ones i have ever messed with go on gasoline engines!...lol... But really, I'm not sure about that.... I am replacing my wheels for adjustable legs when i get everything finished and a place designated to put her!... Plates with Nut is already welded into place, just need to take the wheels off and put the adjusters on... I'm expecting no change... but who knows?.... Yes it is one of the kits from TulsaTurbo.... Quick and easy!.... I would like THC.... maybe late this summer... but what i have going on right now with my cuts are pretty good and really dont have to have it!...

Hope you have a good one and all,
Kelly!

country kid
05-24-2011, 08:06 AM
hey winegar read your build through .... love it mate looks like its turned out really well for you other than the teething problems.... but hey these things happen looks like the machine came up really nicely, its a very similar machine to the one i hope to build a 4 by 4 foot system... except unless i hear back from PCB as to weather the ship international or not i might have to find some other rails :( keep up the good work mate

winegar
05-25-2011, 05:22 AM
Thanks countrykid!... Hope you can get all the parts you need okay!.... If not like these, then they are so many other options, may require a little more work... but you will get it done!...

rodder
05-25-2011, 11:18 PM
I am duplicating winegars build here to the tee. Unfortunately, I do not have any rails yet. I have a beautiful blue table frame, a brand new PM45, licensed Mach3 that, again thanks to winegar, is controlling the trigger, and every other motor and part to finish the build. I ordered my rails May 4 from PBC. They were to ship tomorrow. I got a call from the distributor that the ship date has been moved to June 10th. Not a happy customer right now.
This is ridiculous in my opinion. Soooooo, there has to be another resource for these aluminum extracted rails. If you know of one would you mind posting? I would not do business with this company again. I am confident they will come through eventually, but it is not the kind of service I want. There is probably another solution for rails also that I will start researching. Like winegar, I will strive to keep costs down. FOr a plasma cutter the tolerances don't have to be that tight. A good engineer should be able to come up with something other than constraining ones self to one supplier.
Hats off to winegar for the time and effort he gives to everyone to help make them successful. He has certainly opened up new opportunities for me.
CHEERZ!

Jerry
Boise

Kentuckyfarmer
05-26-2011, 07:00 AM
Good luck on geting your rails. I went through the same BS about 2 weeks ago. In fairness I think my supplier dropped the ball somewhat and did not place the order on time, when I called pbc they had the order ready to ship but the date it was placed was 3 weeks past when i orderd.
As to alternate choices there are many some better some not, but i could not find any product made like pbc ivt rail at thiere price. I must say it was worth the wait my gantry had some play that affected cuts this stuff fixed that. Good luck

linkintiger
05-28-2011, 12:20 PM
winegar did you put 1/4" alum plate on the bottom of the rail to eliminate flexing your gantry?

To all your trying to get PBC rail the problem is with $200 minimum rule that PBC have and your local supplier wont tell your that because they want to make some $$$ i get my rails in 10 days i pick up by my self to eliminate shipping time but to do that your need to have register company because PBC will make problems to sell to a regular walk in customer. You have to know how to fill in PBC order form which must include all the necessary information like what hole pattern do you want etc. i recommend get centered pattern.

winegar
05-29-2011, 09:11 AM
I placed the 1/4" Alum plate on top... and that took care of most of it.... also, I welded my slates together, just a tack weld in the center of each one, where the two meet.... that took care of a lot of movement too... I plan this week to build adjustable feet for it as well, instead of the wheels!...

Will have a few photo's to put up here in just a little bit!...

winegar
05-29-2011, 09:57 AM
This is before i cleaned it up.... will post a finished photo later today!

CNC Plasma Table Build :: POW-MIA Video video by warchildzx7 - Photobucket (http://s968.photobucket.com/albums/ae170/warchildzx7/CNC%20Plasma%20Table%20Build/?action=view&current=POW-MIAVideo.mp4)

http://i968.photobucket.com/albums/ae170/warchildzx7/CNC%20Plasma%20Table%20Build/POW-MIA.jpg

Dustin407
05-29-2011, 11:53 AM
Very Nice Winegar...

Looks like it turned out pretty good, How is your machine doing? Do you have it dialed in yet??

BTW would you be willing to share that dxf file of the POW MIA?? Thanks

Boogiemanz1
05-29-2011, 04:50 PM
I'd like a copy of that file as well............jb

linkintiger
05-29-2011, 06:37 PM
thx winegar pictures will help a lot for that upgrade

rodder
05-30-2011, 05:29 PM
Nice cut Winegar!!!

Where are the holding tabs for the text added? Deskengrave? Special font? Sheetcam?

Linktiger: The rails were well over $200. To buy direct I was told I needed to promise at least $2000 in orders for the year. There wasn't much price difference between the PBC quote and the distributor. PBC said the distributor gets a price break and that was why the prices were close. I just want my freaking rails.

Here's my Z ready to go:

winegar
05-30-2011, 06:59 PM
Thanks!... As for the font... and adding tabs to hold the centers from falling through.... You have to add them in autocad or what ever drawing software you use... Dont get me wrong, some fonts already have the centers connected and all but this one was not one of them!... lol....

cobretti
05-30-2011, 09:43 PM
Very nice winegar...I only saw now the question about the 1/4 inch alum - would you mind showing a quick pic of that. I am cutting at between 50 and 100 because any faster and some lines are jagged...thanks

@rodder - nice paint job on the Z!

linkintiger
05-31-2011, 07:33 PM
winegar... how thick are the walls of square tubing? 3/16 or 1/4?

winegar
06-01-2011, 05:29 AM
I can throw up a pic later today.... no problem... and the thickness of the tubing is 3/16"s....

winegar
06-01-2011, 09:14 PM
Here are a few photos for you guys.... The length of the 1/4" Alum plate is only 48"... I may do the same thing, just in 58" instead... (give or take ")... Fits perfectly on top... and does not hinder anything.... Very close to everything, but does not touch!... Will be picking up some scrap steel in a few days to test it out and see how much it did help... but i can see it has already!....

http://i968.photobucket.com/albums/ae170/warchildzx7/CNC%20Plasma%20Table%20Build/IMG_0559.jpg


http://i968.photobucket.com/albums/ae170/warchildzx7/CNC%20Plasma%20Table%20Build/FordLicPlate.jpg


http://i968.photobucket.com/albums/ae170/warchildzx7/CNC%20Plasma%20Table%20Build/POW-MIA2.jpg

I Lean
06-01-2011, 09:32 PM
Here are a few photos for you guys.... The length of the 1/4" Alum plate is only 48"... I may do the same thing, just in 58" instead... (give or take ")... Fits perfectly on top... and does not hinder anything.... Very close to everything, but does not touch!... Will be picking up some scrap steel in a few days to test it out and see how much it did help... but i can see it has already!....


I'm very interested to see a comparison on two of the same cuts, before/after type stuff.


What size is the aluminum? 1/4" x 2"?

rodder
06-04-2011, 10:56 PM
Wow, so not only do I not have my rails yet, now I have to modify them to keep em from bending? Thanks winegar for finding this stuff first.

So hopefully I am not hijacking this thread by posting tonight but it is related to the topic. If I am I apologize and moderator can remove me. Anyway,
this is my mirror project of winegars. I still dont have rails yet so impatient me bolted my plasmabot Z axis to a 4x4 to see what I could do. Took me most of the day just to realize the micro switch on the floating head was to be wired as the Z axis home. made a little progress after that. All I could really do is some center drill practicing.

YouTube - &#x202a;M2U00216&#x202c;&rlm;

Would anyone like to give me an analysis of what they see in my holes? Attached is a vid of what I was doing. Holes came out to about .080". The dross was easily scraped off with my fingernail. Are these typical holes? or can they be done better? Any comments would be appreciated. Seems like the torch was on longer than needed. Alos still not sure if I'm zeroing and homing properly or using the best post processor. This is only about the third time I've powered my new powermax.

Thanks for everything winegar.

I Lean
06-04-2011, 11:53 PM
Wow, so not only do I not have my rails yet, now I have to modify them to keep em from bending? Thanks winegar for finding this stuff first.

Would anyone like to give me an analysis of what they see in my holes? Attached is a vid of what I was doing. Holes came out to about .080". The dross was easily scraped off with my fingernail. Are these typical holes? or can they be done better? Any comments would be appreciated. Seems like the torch was on longer than needed. Alos still not sure if I'm zeroing and homing properly or using the best post processor. This is only about the third time I've powered my new powermax.

Thanks for everything winegar.

You definitely can reduce your pierce delay setting, so the torch will move down to the cut height (and in your case, turn off) sooner.

One other thing to look for in your rails, is that the ends may or may not be machined nice and square. I used a file to get mine much closer to square, but I can tell (from the V-rollers) that it still isn't perfectly square where the gantry end carriages bolt on. That's letting the whole thing move more easily in the same direction the rail flexes....it all adds up when looking at the "wiggle" if cutting fast.

tulsaturbo
06-05-2011, 03:13 AM
Any comments would be appreciated. Seems like the torch was on longer than needed. Alos still not sure if I'm zeroing and homing properly or using the best post processor. This is only about the third time I've powered my new powermax.

You can try the following configurations:

http://www.needfulthings.net/shopdroids/forum/gallery/albums/userpics/10001/tng_configuration.png

MetalHead6263
06-05-2011, 12:41 PM
Question for winegar . What is the distance of the points on your slats for your materials to lay on , hows that working ? Also how tall is your slat material ? Thanks

rodder
06-05-2011, 11:29 PM
What is the smallest center drill hole size I should be able to obtain?

rodder
06-12-2011, 10:16 AM
PBC pushed my ship date out another two weeks. Ordered the rails May 4th. Had the first ship date of June 10th. Now it looks like almost the end of June. Just in case this becomes an ongoing process with PBC, I'm going to carry on with some angle iron rails and 2" square tubing for the gantry. Not much else to do. From the technical world it probably wont happen but would love to see that you dont need those fancy rails.

cobretti
06-12-2011, 10:56 AM
well if Barton can deliver on his design that was successfully pledged last week then hopefully there will be an alternative solution

MakerSlide Open Source Linear Bearing System by Barton Dring &mdash; Kickstarter (http://www.kickstarter.com/projects/93832939/makerslide-open-source-linear-bearing-system?ref=card)

tulsaturbo
06-12-2011, 11:49 AM
PBC pushed my ship date out another two weeks. Ordered the rails May 4th. Had the first ship date of June 10th. Now it looks like almost the end of June. Just in case this becomes an ongoing process with PBC, I'm going to carry on with some angle iron rails and 2" square tubing for the gantry. Not much else to do. From the technical world it probably wont happen but would love to see that you dont need those fancy rails.

I'm going through the same issue with PBC as well. This is a common problem with them and has continually gotten worse within the past year. This is totally unacceptable for a company their size to operate in this manner.

As an option to the traditional v-rail system, I am in the early stages of design and fabrication of new style carriages. Preliminary results are great and I should have a new style table built within the next few weeks to begin playing with.

YouTube - &#x202a;PlasmaBot 4.0&#x202c;&rlm;


Future updates to this setup will be posted here for those interested...
Login (http://www.needfulthings.net/shopdroids/forum/index.php?board=9;action=display;threadid=99)

linkintiger
06-12-2011, 09:26 PM
that new design should definitely cut on cost of the rails from PBC specially when 2x2 square tube cost $60 per 20 feet :) good job, it will be nice if you could design adjustable corners for square tubing so no welding will be necessary when putting together the base of the cnc table. I got some design in my head how it will look like but i leave designing to the masta tulsa yoda ;)

rodder
06-12-2011, 09:51 PM
masta tulsa yoda sir!

I could beta test those carriages.:)

If they break, I can do it.

tulsaturbo
06-13-2011, 12:18 AM
masta tulsa yoda sir!

I could beta test those carriages.:)

If they break, I can do it.

Trust me, if I had a spare set I would gladly accept the help and send them out to be beta tested. Time is a luxury for me and its what I don't have much of... Hopefully I can get some results for everyone sooner than later...


that new design should definitely cut on cost of the rails from PBC specially when 2x2 square tube cost $60 per 20 feet :) good job, it will be nice if you could design adjustable corners for square tubing so no welding will be necessary when putting together the base of the cnc table. I got some design in my head how it will look like but i leave designing to the masta tulsa yoda ;)

Thanks! Its not shown in the video but there will be another piece that ties the gantry to the end carriages and will allow you to square it all up. Hopefully that part of it will work as I have it envisioned in my head...


To Winegar...
I didn't mean to go off topic on your thread... sorry...

winegar
06-14-2011, 09:59 PM
No problem at all tulsaturbo!... As to answer a question up top.... My peaks are .25" off the main slats... that raise it up off the table.... I will be going watertable some time soon... I have it all about ready... They are letting me use the sheet metal brakes at work on the weekends... I will post up my final results!.... Just been crazy busy and all!

rchacich
06-20-2011, 12:58 PM
Tulsaturbo,

That carriage design sure looks familiar.
http://chacich.com/ppllc/ulc/ulcz.jpg

You are certainly doing nothing wrong copying other people's designs if they don't patent them, but you tend to get your inspiration from designs that I spend many hours developing.

Best Regards,
Ron Chacich

zool
06-20-2011, 09:35 PM
So we can be equitable about your claims, would you please be so kind as to present a time line for your design's incubation, research and development period, and initial marketing dates so they can be compared to those of TulsaTurbo's?

Also:

Look here: CNCRouterParts (http://www.cncrouterparts.com/index.php)

Look here: https://www.finelineautomation.com/


I like your products and looked hard at buying them, but the reason I bought from TulsaTurbo is that, in my opinion, your prices exceeded the value I saw in your designs, especially as your products are relatively common, and they seemed to me to be over-kill, especially when I did some moment of inertia calculations.

There are only so many variations on the theme of joining aluminum t-slot extrusion with steel in a moving environment. Some of your and TulsaTurbo's ideas come from bridge design, when two pieces have to be joined, and their axis and the motions they carry are perpendicular.

Technically, what you and many many others, all over a few thousand years, are using is a mortise and tenon joint.

This is from Wikipedia:

The mortise and tenon joint has been used for thousands of years by woodworkers around the world to join pieces of wood, mainly when the adjoining pieces connect at an angle of 90°. In its basic form it is both simple and strong. Although there are many joint variations, the basic mortise and tenon comprises two components: the mortise hole (female) and the tenon (male). The tenon, formed on the end of a member generally referred to as a rail, is inserted into a square or rectangular hole cut into the corresponding member. The tenon is cut to fit the mortise hole exactly and usually has shoulders that seat when the joint fully enters the mortise hole. The joint may be glued, pinned, or wedged to lock it in place.

This joint is also used with other materials. For example, it is a traditional method for stonemasons and blacksmiths.

This is an ancient joint and has been found joining the wooden planks of the "Khufu ship",[2] a 43.6 m long vessel sealed into a pit in the Giza pyramid complex of the Fourth Dynasty around 2500 BC. Evidence of these joints has also been found in the 4800 year-old wooden ruins some archaeologists are calling "Noah's Ark" in Ankara.[3]

It has also been found in archaeological sites in the Middle East, Europe and Asia. In traditional Chinese architecture, wood components such as beams, brackets, roof frames and struts were made to interlock with perfect fit, without using fasteners or glues, enabling the wood to expand and contract according to humidity.[4] Archaeological evidence from Chinese sites show that by the end of the Neolithic, mortise and tenon joinery was employed in Chinese construction.[5]

The 30 sarsen stones of Stonehenge were dressed and fashioned with mortise and tenon joints before they were erected between 2600 and 2400 B.C.

[Did I happen to mention that I have a graduate eduction in the Philosophy of History? Ya, I am one of them smarts-assed college boys .. even though I am 63. Once a smart-assed college boy, always a smart-assed college boy .... its kinda like a bad stain, or bad smell, depending on your point of view. Also was a Commissioned Officer in the US Army for a few years, combat zones and all that ... so maybe I don't have my head in the clouds, or where the sun don't shine either!!!]