Jim Combs wrote:
> You might not be the right person to answer this, but is it possible to
> create a Auto-Calibrate
> mode where the system would run an axis in a series of short moves in both
> directions where
> the move time is monitored and the motion variables adjusted automatically
> to try and get
> the most optimum settings.  Have a list of variables to adjust and a flag
> for the user to indicate
> auto adjust.  Are there some initial values that would most if not all the
> time, and let the system
> optimize the settings.

I think it'd be easy to automate a PID tuning system like 
Ziegler-Nichols 
<http://en.wikipedia.org/wiki/PID_tuning#Ziegler.E2.80.93Nichols_method>.

It'll get you in the ballpark at least.


> This same thing could be applied to stepper systems too.

No, stepper tuning just requires looking up the step/dir waveform timing 
specs from the manufacturer.  This is emphatically not automatable.


> The whole tuning process, setting acceleration and such seem to be one of
> the critical areas
> that people have the most trouble with.
> 
> Just a thought

Good idea!  :-)


-- 
Sebastian Kuzminsky

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