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General Mach Discussion / DRO Axis Values (?)

« on: January 17, 2015, 12:39:41 AM »

new to hobby cnc and just finished by first build based on the open builds ox, with a bob/motor kit consisting of the JK02 5 axis and DIV168 stepper drivers. However, when I load my Meshcam generated GCode the machine hits limit switches when doing the initial positioned despite my secondary offsets. Mind you, the road runner example GCode runs just fine. Comparing the GCode there are some significant differences, though some in the Meshcam generated file seem correct. One thing I have noticed is the when setting my soft limits (mach3 is set to default to mm) is the the DRO of the axis position is nowhere near what the value should be if it is supposed to be reading mm from machine zero (have verified I am homing to the correct positions, motors appear tuned correctly and home/limit switches are 100%). THe DRO would be correct (or much closer) if it I were to be expecting inches. Is there a setting other than defaulting to mm to display in mm? Also, when motor tuning it appears to only tune in inches (?) which seems odd if you are expecting a system to work based on mm. I'd prefer not to go back and forth and forget that imperial measurement even exist if possible.

note: this is the trial version of the product until I can decide between it and GRBL