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General Mach Discussion / Re: BACKLASH PROBLEM MACHV3.042.020
« on: March 30, 2009, 01:02:46 PM »
BTW, we measure backlash this way:
We have a dial caliper that measures thousandths. We place the gauge against a solid part of the item that is moving, zero the gauge, move the axis by the hand dial until the guage starts to move, that is our backlash. We have the x-axis which is transverse to the spindle at 0.007 in. backlash and the z-axis at 0.005 in. backlash. We have set those in the backlash screen. Saved, rebooted Mach3. Then we move the axis by exactly the back lash to see if compensation occurred. None. We move more say 0.1 - 0.3 with gauge still in place, still off by backlash at least.
We have a dial caliper that measures thousandths. We place the gauge against a solid part of the item that is moving, zero the gauge, move the axis by the hand dial until the guage starts to move, that is our backlash. We have the x-axis which is transverse to the spindle at 0.007 in. backlash and the z-axis at 0.005 in. backlash. We have set those in the backlash screen. Saved, rebooted Mach3. Then we move the axis by exactly the back lash to see if compensation occurred. None. We move more say 0.1 - 0.3 with gauge still in place, still off by backlash at least.