RE: [CAD_CAM_EDM_DRO] pulley ratios for timing belts

> -----Original Message-----
> Jon Elson wrote:
>
> Steppermod is a little faster, but gives rough steps. Freqmod is much
> smoother, but takes more CPU resources. I don't think 5 KHz is a limit
> unless you insist on Pentium I (classic) processors. If you can get a
> 333 - 450 MHz pentium II, I think you can go well above 5 KHz without
> trouble. These CPUs are cheap now, where they were expensive top of the
> line systems 2 years ago.

In the context of a G3X0 the smoothness of the steps is not relevant. In
nontechnical and maybe somewhat conceptual terms in the G3X0 the steps just
drive an accumulator and the encoders drive another. A comparator looks at
both and generates the error signal. The accumulator does not have any of
the resonance and acceleration issues that the rough pulse pacing of
steppermod outputs.

Tim
[Denver, CO]

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