Re: [CAD_CAM_EDM_DRO] General Question REgarding Stepper vs. Servos

From my experance with the stepper equipped Bridgeport at the Community
Coll. you have to do some thing really stupid to get it to miss steps.

Mark

Statman Designs, LLC wrote:

> I often hear a lot about the limitations of stepper motor systems being the
> potential for lost steps and the resonance issues at low speed. I have a
> question for those of you running stepper motor CNC machines: do any of you
> actually miss and steps? My systems have been up and running many, many
> hours and have never missed a step. With a micro-stepping drive like
> Xylotex (for small machines) or Gecko (for larger machines) isn't the
> resonance issue resolved? I have zero low-speed resonance on my sytems with
> the Xylotex drives.
>
> I think the fact that steppers lose torque at high-speed is the only
> limitation that seems to matter. Therefore, a stepper system will be
> somewhat slower than a servo system. Or am I missing something else?
>
> Not trying to start a religious war about stepper and servo systems, just
> trying to understand the real differences.
>
> Daniel J. Statman, Statman Designs
> www.statmandesigns.com
> dan.statman@...
>
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