Re: [CAD_CAM_EDM_DRO] What ratio to use for stepper motor drive?

Bryan Mumford wrote:

> >It would be well worth the trouble to look up a stepper torque vs.
> RPM graph
> >on some of the manufacturer sites and you will quickly see what I am
> talking
> >about.
>
> I have some data on my stepper motors, and there is a small
> speed/torque graph. But it speaks of steps per second. This probably
> means conventional whole steps per second. How do I relate this to a
> motor driven with sine waves at 1,000 steps per rotation?

Probably divide by 5 to get 200 steps/rev, which is the usual for fine
resolution
stepper motors. And, the inductance is the overriding constraint, so
half stepping
or micro-stepping doesn't make much difference. The voltage available
to the
driver is the only thing that overcomes the inductance.

Jon