Re: [CAD_CAM_EDM_DRO] Tuned damper for stepper motor

Steppers, especially in half or full-step mode cause vibration when they
turn. At certain speeds you can end up with the drive train resonating.
This resonance can cause lost steps or stalling. The damper is fitted to
damp out this resonance. Of course it needs to be tuned to have the most
effect at the resonant frequency. The disadvantage of a damper is that
it adds quite a bit of inertia so reduces your acceleration.

A better solution is to change over to microstepping. Because
microstepping is so much smoother resonance problems aren't usually an
issue.

Les



Steve Blackmore wrote:

>
>
> Might sound stupid BUT
>
> What's a tuned damper, and why would you need one?
>
> I'm no virgin with CNC, but this one does not compute ;)
>
> Steve Blackmore
> --
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>