500 RPM for tapping is really impressive in my point of view, my former
woking friend Correa couldn't do it at that speed even though it was
upgraded to a PC controller.
Regards,
Sven
2008/6/2 Anders Wallin <[EMAIL PROTECTED]>:
> > Cool, what kind of tweeking did you have to do with hal?
> > John
>
> nothing special, just set up the spindle encoder so that
> motion.spindle-revs increases by 1 when the spindle turns one
> revolution, and connect the index-enable to the encoder counter.
>
> setp m5i20.0.enc-03-scale 2000
> net spindle-pos m5i20.0.enc-03-position
> net spindle-pos motion.spindle-revs
> net spindle-index-en motion.spindle-index-enable
> net spindle-index-en m5i20.0.enc-03-index-enable
>
>
> Rigid tapping worked fine at 500 RPM, but gave following errors at
> higher spindle speeds.
> Now I did it by first starting the spindle and then issuing the G33.1
> command.
> I suspect the following errors are related to the Z-axis not keeping up
> with the spindle if the spindle is already turning at 2000rpm.
>
> So perhaps start the spindle and have the G33.1 command on the same line
> of g-code so that the spindle accelerates from 0rpm to commanded rpm and
> the z-axis has time to respond?
>
> Now I have no accel/decel on spindle-speed-out, so the accel/decel is
> only set in the VFD. But that should be ok as EMC2 does the gearing on
> the actual encoder signal and not commanded rpm.
>
> Anders
>
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