On Tue, Oct 13, 2009 at 03:59:05AM +0000, Chris Morley wrote:
> 
> yes 2800 steps per inch.
> I don't doubt your math. You would think it should error all the time.
> but running in the negative direction is definitely worse then positive.

I bet it has to wait for a direction change, so it starts out
further behind.

> I wouldn't think that should make a difference.
> and why would jogging (at say 25 ipm) be worse then G0 moves at
> 100 ipm
> How is jogging planning different from G0 moves ?

Acceleration is higher.  Program G61 to get full acceleration on a
G0 move.

> Is there two things going on here?

Yep


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