Re: stepper motors oscillate

[Ray <rehenry-at-up.net>]

Oli

You can suppress oscillation by setting deadband for each joint greater
than one half the step distance.  On my minimill one step is 0.0005 so I set

DEADBAND = 0.00026

If your steps are large, The deadband value may show on the display as a
deviation from commanded position.

Hope this helps.

Ray



On Fri, 06 Jul 2001, Oli wrote:
> I am trying to run a PKM with EMC. I compiled my transformation using
> emcfreqmot.o to 
> control my stepper.
> When I am driving, using MDI, to any position in world frame, the
> axisdisplays in joint frame,
> and also the motors, oscillate between two positions of the steppermotors
> after reaching the endposition.I thougt EMC would just make a step when the
> difference between commanded
> position and real position is larger than half a step?
> Does anyone know how I can suppress this oscillation?
> 
> Thanks Oli
> 
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