On Sun, Sep 23, 2007 at 11:06:46PM -0500, Jon Elson wrote:

> So, I set both FERROR and 
> MIN_FERROR to 0.01 (mm) and found that I would get the following 
> error trip about 150 ms after motion started.  The jerk at the 
> start of the linear acceleration ramp caused the worst error of 
> about .003mm, the error then decreased a lot, and was about 
> .001mm when the following error was declared!  So, the error 
> never reached the limit.  

There's axis.N.f-error-lim, which shows the trip threshold as it
changes proportional to velocity.  If there's any bug with the trip
threshold, a plot of axis.N.joint-vel-cmd, axis.N.f-error,
axis.N.f-error-lim, and axis.N.f-errored (trigger on this one) would
be very enlightening.  Can you get a snapshot of this happening?

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