backlash issue - how to compensate for it.

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backlash issue - how to compensate for it.

Postby samjenp » Sun Dec 31, 2017 3:16 pm

Im using CUT2D and the General GRBL sender with GRBL(MM) postprocessor.

Its fairly accurate for most things but lacks the precision I need for some of more intricate, complex items or when the item I'm making requires a high level of precision.

I ordered some anti-backlash nuts 6 weeks ago but I haven't received them yet (maybe lost in the Australian Postal system!) , so I cant say how much they will improve the problem.

I was wondering if there is any way that either the post processor or CUT2D can compensate for Backlash?

i.e. is there a setting or a different Post-processor that I can configure so that it compensates for backlash ?
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Re: backlash issue - how to compensate for it.

Postby ger21 » Sun Dec 31, 2017 3:45 pm

More feature rich controls (Mach3, UCCNC, LinuxCNC, .....) have backlash compensation features built in.

I don't think any of the GRBL based or other open source controls do.
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Re: backlash issue - how to compensate for it.

Postby IslaWW » Sun Dec 31, 2017 3:47 pm

Usually there is no backlash compensation in design software. You should first remove all that is possible mechanically, then see if your control has any feature for backlash compensation.
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