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Mine is still about 2 weeks away, and im away from the shop where im building the table for the next few months. Probably wont have it together till April....
Sweet! Let me know when you are done!
--John
Hi John. How's everything going?
I've read a couple of threads that have used the IVTAAG stock for the gantry and had troubles with the IVTAAG torquing as the Y axis accels and decells and the resulting poor cuts.
Do you know if this is a general problem or specific to certain builds? My rail stock is still 2 weeks away so I have too much time for worrying maybe.
More recently, I've ordered up the 620/4 4 axis system, the Plasma software bundle and the Hypertherm cable from Candcnc and tulsa's geared reduction for x and y. I've got everything here except the electronic, the darn grainger bushings and the rails. I'm almost ready to start cutting and welding.
Mine is still about 2 weeks away, and im away from the shop where im building the table for the next few months. Probably wont have it together till April....
Sweet! Let me know when you are done!
--John
I am fixing to order the setup for 2"x2" because Motion Industries called pbc today and they said they discontinued the intregated v rail...Originally Posted by johndjmix
Glad your build is here it is nice to see what work goes into it..I am going to start mine next week or so..I am buying a cold cut saw just to help keep everything square when cutting..
Luckily, i called my office in NY and found that my V rail arrived. Big relief! I told them to lock it in my office and guard it like a hawk, since its not replaceable!
I wonder why they would discontinue a rail that would seem to be popular.
--John
Back at my shop I have been working on the machine. A few things I did and would suggest to others:
Make the sq tube that your V rails mount to adjustable, as I did by mounting it using a plate on the table and a plate on the rail. This makes it adjustable, you can get the rails perfect if your off by a little bit. You can also add spacer blocks to raise the gantry.
If you can, buy the IVDJSHJSHD (<-- joking....whatever code they are!) square tubes that the V rails mount to via those special fasteners. Unless you dont feel like drilling and taping 40 holes (Actually i drilled pilots so i drilled 80 holes! My arms are about to fall off! If you do it as i did, I used 5/16-24 x 1" SS button head bolts. Grabbed great in the 3/16 tubes.
When cutting V rails, notch the metal V part using a cut-off wheel. If your saw catches the metal rail as its cutting it could pull the metal rail out from the aluminum, totally f**king the rail! This didnt happen to me, but i could defiantly see this happening, espically since my band saw has a course blade. I attempted to cut one without notching (the gantry rail) by going very slow, and it destroyed my bandsaw blade....is that V section made of stainless possibly?
Measure, level, square....over and over again.
The V rail is hardened--that's why it killed your bandsaw blade.
Not that it matters to you now, since you're done--but I used 1/4" bolts to bolt down the rail, so I have a little bit of V-rail adjustment via the slop in the holes.
ilean: thought of that...but did it this way so i can raise the whole system up if i need to using 4 spacer blocks. Either way works......
But I do have a small issue. I finished welding 1/8 plate to the bottom of the 2x4s tonight, to create the water table. I actually used the gantry to hold the welding gun and moved it down the rails to do a nice straight weld! (Made me wonder if anyone has added a welding gun to their table for robotic welding). Anyways, it Worked great, but....my 1/8" material was cut a bit crooked which made it end up being a bit short and i had to patch a plate in. Made a bit of a mess of the water table. No big deal, its not a critical part...but im concerned about sealing.
So....does anyone have a good idea of a sealent i can goop around the seam of the plate and the 2x4's? I was thinking the blue BLOCK stuff.
Blue Block™ Gasket and Pipe Joint Thread Sealant - Thread Sealing Compund made by Hercules Chemical Co. Inc.
You can get it at home depot. Its resistant to just about anything, gas, propane, etc...nothing get it off. (Im sure those of us that have used this stuff found this out once we got it on our hands!). Quite good stuff! Any other recommendations?
--John
hey nice build im about to start putting mine together i have everything exept the rails ive been waiting for them for a month now im trying to draw up my table not sure how high to make the water table sit .. any pointers?
John,
Where did you purchase the cool looking v rails for the gantry?
good looking piece!
Aj
Just for grins, Here are two photos of my 5 x 10 machine I build a few years ago.
I documented it from start to finish with photos and CAD drawings.....
I'm no expert, but I may be able to help you with some simple stuff.....
Aj
Ajclay: the v rails come from Pbclinear.com. Your build looks good. Like the controls, but I bet your going to love how I'm doing my controls....i have a cool plan for them. -))
I'm power washing the water table part today and going to prime then coat with truck bed liner. Anyone tried this? Seems like the perfect way to seal and protect the water table.
--John
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