Backlash Problems

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19 Aug 2011 06:28 #12610 by efinkg
Backlash Problems was created by efinkg
I have a Hurco KM3 running EMC2 through a Mesa 7i37 that has a Z axis backlash where it reports that it is .0019 inches from the position I would like it to be in. I have tried using Backlash in PncConf and straight to the .ini file, with both the "right value" of .0019 and ridiculous values like .2, with no changes. It is a closed loop system, what do I do to try and remedy this?

Thanks!

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19 Aug 2011 12:41 #12615 by andypugh
Replied by andypugh on topic Re:Backlash Problems
efinkg wrote:

I have a Hurco KM3 running EMC2 through a Mesa 7i37 that has a Z axis backlash where it reports that it is .0019 inches from the position I would like it to be in


Is this a disagreement between the onscreen DRO and the commanded position, or the commanded position and a separate DRO? Or something else?

Is this a stepper system or a servo system?

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19 Aug 2011 17:30 #12622 by efinkg
Replied by efinkg on topic Re:Backlash Problems
The onscreeen DRO and the commanded position, yes.

Closed loop DC motors with encoders.

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19 Aug 2011 17:45 #12623 by PCW
Replied by PCW on topic Re:Backlash Problems
Looks like not enough P term or
if you have as much P term as you can make stable, no I term

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