>
> > I am just not completely comfortable without knowing those
> > values are optimum.
>
> The values need to be long enough to trigger the drives, and that is
> all. It's a digital thing, there is no "optimum" just "long enough"
> You only need to worry about reducing the values if you are trying for
> very high step rates.
>
> --
> atp
> If you can't fix it, you don't own it.
> http://www.ifixit.com/Manifesto
>
They have to be long enough to trigger the drives _reliably_.
Including taking into account jitter.
Here is an old but interesting write up of software stepgens:
http://wiki.linuxcnc.org/cgi-bin/wiki.pl?TweakingSoftwareStepGeneration
It's out of date because it doesn't discuss paraport double stepping.
Chris M
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