Newbie- Build CNC Router?

[Mr.Chips]

Originally Posted by jeffmorris I think that if the CNC machine was built following the plans from Solsylva, it was built to sit on door, floor, etc, and rout on door, floor, etc. Do I have to raise the CNC machine 1-1/2 inches so that I rout wood that's placed on its base?

How about putting something under each leg to raise the entire machine?

[jeffmorris]

I'm going to raise the entire machine using some pieces of wood.

[jeffmorris]

I raised the entire machine 2-1/2 inches so that the Z-Axis can have full travel. I used pieces of plywood glued together and pieces of steel bed mattress frame. I still have problems with limit switches. I checked wires and limit switches a million times and I can't get the limit switches to work correctly.

[jeffmorris]

I made two signs today. First one was good. Second sign was not good because the CNC machine didn't work properly or there's bugs in the G-Code program that was generated by Cut2D program. How do I test G-Code programs before I run the CNC machine? I know that I can put Mach3 program in off-line mode to test G-Code programs but what if something's wrong with the machine? I'm not sure if I can use computer cables between the enclosure containing the electronics and the home/limit switches. Computer cables are usually shielded. I already have shielded cables between enclosure and stepper motors. On another thread on this forum, someone was having problems with the home/limit switches and someone else suggested that he set the debounce parameters in Mach3 program. Link to thread: http://www.cnczone.com/forums/showthread.php?t=56869