Re: [CAD_CAM_EDM_DRO] Re: stepper issues

At 11:18 AM 11/17/2007, you wrote:

>If you need speed as well as accuracy, I would use a regular DC
>motor to drive the wheels and an encoder to measure the distance,
>with some sort of brake at the end.

Actually, an encoder on the wheel would allow ANY motor to drive it,
the accuracy would be limited by the wheel. If a step is missed, it
won't matter.

On a DC PM motor, why use a brake? Simply short out the motor.


David G. LeVine
Nashua, NH 03060