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Excellent tips on getting the racks extended. Thanks guys, I need that tip too. I'm building a second table which is about 10 feet long and I hadn't figured that part out yet.

I'm sorry, but I...

Hi There,
I used 16 pitch 24 tooth pinions, 14.5 deg.

Without a gearbox, I can only use it to move a torch where the torque isn't required. We have a second table under construction where we are...

Hi Guys,
G30 is supposed to be a "hard home" which moves the machine until the home switches trigger. It doesn't do that. It does do it when you press the "HOME" button in Manual Mode, so how do I...

Glad to hear you're thinking of building your own! Mine has been a real hoot. All I have left is to get the torch switch wired in so the computer can operate it, and I'll be cutting patterns out...

I paid a little less, about $62 for 6 ft from McMaster Carr (www.mcmaster.com) and search for "gear rack".

My table has a 4 ft x 5 ft work area, so the 6 footers worked well on mine if that helps...

I would recommend building your own, if you have access to some machine tools to cut the parts out on. It will cost about $1500 in motors, controllers, mechanical components, and some structural...

Ok, I'll get some pictures taken and post them tonight if I remember.

My setup uses 1.5" pitch diameter gears direct drive, so I get 4.71 inches of motion per revolution of the 1000 counts/rev...

My setup (which I just got up and running) uses rack and pinion to drive a plasma torch. It hit 600 ipm before my slower computer started to have following error problems, so I don't really know...

Well, I rewired the step & direction inputs and jumpered the inputs from drive x1 to drive x2 and it works just fine. There must be a bug in the software since the software technique didn't work.
...

Thanks guys,
I'll try that later today and see what happens. I have one reservation though... the parallel port may not be able to sink enough current to handle two drives and it may fry the port. ...

Ok, I have the machine hooked up (an XYZ plasma cutting table) but I can't seem to get emc.run to configure properly. I want an "X X Y Z" setup but all I get is "X Y Z A". I know it's reading the...