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General Mach Discussion / G Code Executing in mm's instead of inches

« on: March 28, 2012, 01:05:57 PM »

I am new to CNC and Mach3. I have a 3 axis engraving machine.  I was able to set up my machine without any problems. I used generated a .dxf and g-code with 2L. I was able to execute it and all looked great and it executed in inches (yesterday). I reloaded the g-code and today it executes the same values but in mm's. Really tiny, i.e., the 2" square is now 2mm's.  I am sure it is something really simple. I know its not the native units under configuration. I checked that.  Thanks in advance for any help.