stepper resonance

I believe this is the resonance of the motors. You may notice some reduction
in the effect if you can use half steps in your controller.

BTW I am looking all over for suotable steppers for my Bridgeport conversion.
Does anyone have large motors available?

Tom

> I have notice that the larger stepper motors seem to have certain
> frequencies at which they are sensitive to acceleration rates and if you
> keep them at these frequencies they are susceptible to loosing steps. It
> seem the faster the acceleration you can get away with the better.