New Machine Build Looking to pull the CNC conversion trigger - Page 4

Page 4 of 7 FirstFirst 1234567 LastLast
Results 61 to 80 of 125

Thread: Looking to pull the CNC conversion trigger

  1. #61
    Member
    Join Date
    Apr 2010
    Location
    USA
    Posts
    104
    Downloads
    0
    Uploads
    0

    Default Re: Looking to pull the CNC conversion trigger

    Second 3d part attempt-- had two tool crashes, scratched it with a file during post clean up, and it's showing me there's something funky with the diagonal tool path. (gibs too loose?)






    Also went to the local surplus yard and it looks like they picked up a crate of scratch and dent motors from grizzly. Got this 3hp, 240 single phase, 3400rpm motor for $75. Looks new-- hope to adapt it to the mill head and take off the 1.5 up 1700rpm motor. I'm not ready for a vfd/pulley setup yet.





  2. #62
    Member
    Join Date
    Apr 2010
    Location
    USA
    Posts
    104
    Downloads
    0
    Uploads
    0

    Default Re: Looking to pull the CNC conversion trigger

    Did some milling on the 3d part, cutting off the bottom with a 1/2" 2 flute in climb mode. There was significant chatter in the one x direction than the other-- same for y. The chatter direction was when the end mill was pulling the part and as table/vise in the direction to pull the gibs and ways apart, so it looks like I need to crank down on things.

    Sent from my VS985 4G using Tapatalk



  3. #63
    Member
    Join Date
    Apr 2010
    Location
    USA
    Posts
    104
    Downloads
    0
    Uploads
    0

    Default Re: Looking to pull the CNC conversion trigger

    New toys from Tormach, a superfly cutter and keyless drill chuck and holder. The superfly works nice--probably will be even nicer at a higher RPM. It did show me there's some front to back tilt needing adjustment in the column still as there was a slight step between adjacent passes.




    A cheap investment I wanted to try and see what the actual spindle and new motor rpm were. Precision Matthews states 1970rpm on the machine in the highest gear, but this sensor read 2034rpm with no load. If true, I'll take it.





  4. #64
    Member
    Join Date
    Apr 2010
    Location
    USA
    Posts
    104
    Downloads
    0
    Uploads
    0

    Default Re: Looking to pull the CNC conversion trigger

    After putting the flycutter to use on an actual part, I was seeing a step between passes, one just large enough to catch your nail. Measuring with the Edge pro tram gauge, I was seeing .003" in tilt over 6". I used a cheap set of feeler gauges cut up and put between the base and column in the back and removed tilt down to 2-3 tenths over 6". The picture below will show.

    I also made my first jig plate and run of "production" parts for a friend.








  5. #65
    Registered
    Join Date
    Sep 2016
    Location
    United States
    Posts
    7
    Downloads
    0
    Uploads
    0

    Default Re: Looking to pull the CNC conversion trigger

    Hi 91.
    I just found you this morning and plan on following you.
    Thanks for all your info and pictures, I'm looking at doing the same. rngr1



  6. #66
    Member
    Join Date
    Apr 2010
    Location
    USA
    Posts
    104
    Downloads
    0
    Uploads
    0

    Default Re: Looking to pull the CNC conversion trigger

    So, some issues I've experienced and just now encountered.

    --Sometimes when I bang on the metal stock setting it in to the parallels it causes Mach4 to be unresponsive. I can "disable", then go into Config/mach/ and click across some tabs without making any changes and then click ok. This then refreshes the user interface, where I can "enable" controls and now jog my axis again. Not sure why it does this, and I can't recall if it happens while control is disabled too.

    --Mach4 becomes unresponsive as above if I let it sit too long at random times. I fix it the same way as noted above.

    --I can't seem to set the Z height properly when running a Gcode for the first time. It seems to always change depending on what first tool is called up even though I start the Gode, load the first tool, and then manually set the height. Perhaps I need to be using the offsets tab instead of the program tab to do this? Anyone able to give an easy how-to on this?

    --My motor does not want to spin at full speed right off the bat in high 2 or high 3 gears. When I turn the spindle on, it does turn but maybe 30 rpm or so. I'm guessing the capacitors are taking a crap at this point so I should hurry up with the motor swap I wanted to do. In the meantime I'm using a cordless impact driver with 17mm socket on the drawbar to get the spindle up to speed and out of the capacitor's duty. It works but definitely dangerous to an extent.

    --Last, and this is the killer for productivity today, is that I'm pretty sure my one driver died. I was in the middle of a run doing a drilling operation. Something was wrong with the cam program so the holes weren't deep enough. I stopped the program, jogged X to the one side so I had room to drill, and then completed it manually. When I went to jog it back it didn't move although the positioning on the screen did. I tried my refreshing trick and nothing changed. Looking down at the electronics enclosure I noticed there was no green light on for the X driver. (it's a KL-8082H from Automation Technologies) . I tested the power wires at the driver and had 72+ volts. Swapping location of this driver with the Y axis showed me the X driver was bad as it did the same thing in the Y axis slot while the Y axis driver powered up in X's spot. I want to open it up to see if there's anything noticeably wrong that I can maybe fix but I also wonder if it could be covered under warranty somehow. I doubt it though. Any thoughts on what could have killed it?



  7. #67
    Member
    Join Date
    Apr 2010
    Location
    USA
    Posts
    104
    Downloads
    0
    Uploads
    0

    Default Re: Looking to pull the CNC conversion trigger

    The driver was no longer under warranty (over a year since I bought it) so I picked up a new one. It's not listed on the sight individually that I could find, but for those interested it was $129ish plus shipping. Plugged it in and was back in action.

    Sent from my VS985 4G using Tapatalk

    Last edited by 91TSiGuy; 10-15-2016 at 12:22 PM.


  8. #68
    Member
    Join Date
    Apr 2010
    Location
    USA
    Posts
    104
    Downloads
    0
    Uploads
    0

    Default Re: Looking to pull the CNC conversion trigger

    I made a little bit of progress with attempting to adapt the 3hp motor today. The first thing in order was to pull off the top of the gear housing and see what I was working with for thickness. Initial measurements of the motors showed me I wouldn't be able to use the stock bolt locations, but luckily I erred in my favor and gained another .25" of adapter plate thickness. With the gear box lid off I saw how the casting was built up around the front two holes to allow them to be deep enough and threaded. The two rear motor mount holes overhang from the gear box.

    My adapter plate will bolt to the 3 endcap holes in the new motor and using studs will bolt on the stock holes location. This gives me .5" clearance for the stud and nut above .25" of flange material. Pics below to show.





    As for the gear box, I was but wasn't surprised too see the condition inside of it. Gears, bearing races, and parts of shafts had rust on them and there was the standard dirt and grit here and there I could knock loose. The gear oil I replaced during this build however I don't see bearings lasting very long with double the rpm and said dirt.






    Last but not least, I never got around to a solution for oiling of the z ballscrew until this week. I picked up an oiling brush that attaches to pipe thread and has a thru hole. This will have constant contact with the ballscrew higher than the ballnut will travel and hopefully let oil run down the length of the screw over time. I need to finish running tubing to it and it's done.







  9. #69
    Member
    Join Date
    Apr 2010
    Location
    USA
    Posts
    104
    Downloads
    0
    Uploads
    0

    Default Re: Looking to pull the CNC conversion trigger

    Adapter plate is made, but it fought me the whole time and isn't to the original dimensions. I think it'll work fine though.

    You'll see spots on it where the chamfer was too large due to the previous tool having an incorrect length in my tool table, the one end mill pulled out of the collet some and left a small step during a final pass, I lost power to the mill at one point and thus my homing (aka attempted tool crash), and I didn't quite have the work origin set right in my cam so the part is now shorter in height.

    I still need to bolt it up to the head to see final fitment.





    Tighter fit than its supposed to be...some clearance grinding on the motor housing will fix this.


    The output shaft turned down from 7/8" to 3/4"





  10. #70
    Registered MikeC8's Avatar
    Join Date
    Dec 2013
    Posts
    290
    Downloads
    0
    Uploads
    0

    Default Re: Looking to pull the CNC conversion trigger

    Looks like you're making great progress on your machine. Any idea what caused your machine to loose power?

    Work: Hurco VMX42/VMX50 - Shopsabre 4896 - HSMworks with Solidworks
    Home: RF45 with Ajax CNC Controller - Fusion 360


  11. #71
    Member
    Join Date
    Apr 2010
    Location
    USA
    Posts
    104
    Downloads
    0
    Uploads
    0

    Default Re: Looking to pull the CNC conversion trigger

    Yes, the dryer, air compressor, and mill/control box were all on the same circuit and tripped the breaker. No more doing laundry-- machining is more important!

    Sent from my VS985 4G using Tapatalk



  12. #72
    Registered MikeC8's Avatar
    Join Date
    Dec 2013
    Posts
    290
    Downloads
    0
    Uploads
    0

    Default Re: Looking to pull the CNC conversion trigger

    Sounds like you need more power

    I would probably trip a breaker if I tried to run my welder with the CNC running, along with the compressor. My garage is run off a 50 amp sub panel. But that panel only feeds my 220 equipment, and heater.

    Work: Hurco VMX42/VMX50 - Shopsabre 4896 - HSMworks with Solidworks
    Home: RF45 with Ajax CNC Controller - Fusion 360


  13. #73
    Member
    Join Date
    Apr 2010
    Location
    USA
    Posts
    104
    Downloads
    0
    Uploads
    0

    Default Re: Looking to pull the CNC conversion trigger

    Finally wired up the $7 e stop from Amazon with about 10-12' of lead. Threw it on an open input, tried it out and it works. I'll probably pick up a magnet to mount on the back of the enclosure.



    I also touched up the output shaft of the new motor since the previous way gave me a bit too much runout that I discovered. (A live center in the end where there are threads doesn't work too well.) I just need to machine A new keyway groove and it should be ready to try out.





  14. #74
    Member
    Join Date
    Apr 2010
    Location
    USA
    Posts
    104
    Downloads
    0
    Uploads
    0

    Default Re: Looking to pull the CNC conversion trigger

    So after touching up the output shaft, I was undersized about .006" of the diameter. No problem, the .003" stainless shim stock came to the rescue--I cut a piece that wrapped most of the way around and left it open at the keyway groove.

    With the motor reassembled, I threw it up in place and everything fit. The rear two nuts are a little tough to get to and will require removal of the z motor plates for better access. I thought about tapping out the dents in the covers but they're only cosmetic and can stay. I turned it on, got out the photo sensor, and saw 4060rpm at the spindle in H3. That should do the bearings in mighty quick.



    Sent from my VS985 4G using Tapatalk



  15. #75
    Member arizonavideo's Avatar
    Join Date
    May 2008
    Location
    USA
    Posts
    1185
    Downloads
    0
    Uploads
    0

    Default Re: Looking to pull the CNC conversion trigger

    I did almost the same thing to a 2hp 3600 RPM motor for the new PM-940m mill I'm working on.



    I'm going to run a VFD but basically the same idea. In the long run doing the belt drive is totally worth it but this should do for a little while. I really hope my gears don't look as bad as yours did. The last two heads I took apart were better than the one you have but still full of grime.

    I do have extra gears if you need them!

    youtube videos of the G0704 under the name arizonavideo99


  16. #76
    Member
    Join Date
    Apr 2010
    Location
    USA
    Posts
    104
    Downloads
    0
    Uploads
    0

    Default Re: Looking to pull the CNC conversion trigger

    Nice! Any pictures of your adapter plate? I briefly googled for some ideas but never found any pictures similar to what I wanted to make. I was afraid I'd have to make a whole new end cap to the motor with a flange on it requiring some thick aluminum stock, and thus exceeding my ideal budget on the upgrade.

    Sent from my VS985 4G using Tapatalk



  17. #77
    Member
    Join Date
    Apr 2010
    Location
    USA
    Posts
    104
    Downloads
    0
    Uploads
    0

    Default Re: Looking to pull the CNC conversion trigger

    Finally used the new motor on a project. It's quieter in ways but still noisy from the gears in the head. I have a feeling I'll be switching to a belt drive conversion in the future. The next project has to be a new stand and enclosure though-- the chips are reaching the washer/dryer and that does not make the wife happy!

    Aside from that, I finished up the tubing for the Z axis oiling.



    And made some Christmas gifts that I can finally post.





  18. #78
    Registered MikeC8's Avatar
    Join Date
    Dec 2013
    Posts
    290
    Downloads
    0
    Uploads
    0

    Default Re: Looking to pull the CNC conversion trigger

    Nice looking gifts, I should do something like that next year.

    Having just chip pans helped a lot with my mill, at least with the two parts I have machined with them in place. I am excited to see how well it works with the full enclosure once its finished.

    Work: Hurco VMX42/VMX50 - Shopsabre 4896 - HSMworks with Solidworks
    Home: RF45 with Ajax CNC Controller - Fusion 360


  19. #79
    Member
    Join Date
    Apr 2010
    Location
    USA
    Posts
    104
    Downloads
    0
    Uploads
    0

    Default Re: Looking to pull the CNC conversion trigger

    I just finished reading your build thread ( very nice by the way) and plan to make something very similar to your enclosure. Can't wait.

    Sent from my VS985 4G using Tapatalk



  20. #80
    Registered MikeC8's Avatar
    Join Date
    Dec 2013
    Posts
    290
    Downloads
    0
    Uploads
    0

    Default Re: Looking to pull the CNC conversion trigger

    Thanks

    I ended up making mine with a pan on either side, rather than 1 single pan. It was easier to build in some ways, but I mainly wanted to have a way to service the y axis ball screw assembly without having to remove the mill from the stand. I will probably have to install a simple baking tray under the base, to catch way oil and rogue chips that find their way though.

    The enclosure is something I have been wanting to do since I got the mill, but I knew I would need/want to redo the stand, as well as move the servo before I could start on building anything. After I finally started modeling everything in cad, I decided to take the plunge and start making it happen.

    Work: Hurco VMX42/VMX50 - Shopsabre 4896 - HSMworks with Solidworks
    Home: RF45 with Ajax CNC Controller - Fusion 360


Page 4 of 7 FirstFirst 1234567 LastLast

Tags for this Thread

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •  


About CNCzone.com

    We are the largest and most active discussion forum for manufacturing industry. The site is 100% free to join and use, so join today!

Follow us on


Our Brands

Looking to pull the CNC conversion trigger

Looking to pull the CNC conversion trigger