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General Mach Discussion / Axis Calibration Trouble from a Newbie!

« on: March 09, 2015, 03:25:11 PM »

I am very new to the CNC world. My machine seems to be running well and accurate but I can't seem to get the Z axis to cut the proper depth. X & Y seem fine as far as accuracy but Im not sure what to try next. I have tried calibrating in Mach through the Set steps per unit tab in settings but every time that I do this it sets the steps per unit way higher than my motors can handle. They just hum really loud and don't move. Could this be a file issue rather than a Mach setting issue? Thanks!

I am using VCarvePro to set up my G Code files.