John Kasunich wrote:
> Don't use position-interpolated as feedback for position control. 
> Period.
>
> It even says that in the manual (I think).  The problem is that as speed
> approaches zero, and reverses, the interpolator keeps guessing at the
> position until it sees the next encoder count.  Those guesses will drive
> the PID loop nuts.
>   
Worse than just simple delay, a non-deterministic delay.  Yeah, I was 
afraid of
that.

Jon

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