Re: [CAD_CAM_EDM_DRO] lost steps on deceleration

This is most likely low-speed stepper resonance. It probably will also miss
steps on the acceleration side if you don't accelerate too fast through the
resonance band. The cure is to get a microstepping drive, you will be
amazed at how all of those resonance issues just disappear.

If you are already using a microstepping drive and it is set to 8 or 10
microsteps, then your problem has nothing to do with resonance. You will
then have to do some more systematic testing of your system to know exactly
when and where it is dropping steps.

Daniel J. Statman, Statman Designs
www.statmandesigns.com
dan.statman@...

----- Original Message -----
From: "terracnc" <terracnc@...>
To: <CAD_CAM_EDM_DRO@yahoogroups.com>
Sent: Tuesday, August 05, 2003 8:42 AM
Subject: [CAD_CAM_EDM_DRO] lost steps on deceleration


> Hi everyone,
>
> If a stepper moves OK on acceleration and constant speed but lose
> steps on deceleration, what is this symtomatic of? Is it the max.
> speed too high, the aceleration (ramp?) set too high or too low, etc.?
>
> Thanks
>
> Terra
>
>
>
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