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

> -----Original Message-----
> From: Bryan Mumford [SMTP:bryan@...]
> Sent: Wednesday, April 26, 2000 11:02 AM
> To: CAD_CAM_EDM_DRO@egroups.com
> Subject: RE: [CAD_CAM_EDM_DRO] What ratio to use for stepper motor
> drive?
>
> 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?
>

Microstepping should not diminish torque, as it merely breaks up the
phase current into intermediate values between whole steps. Some torque
loss problems are really caused by resonance, so you might get more usable
torque with microstepping.

Doug