RE: [CAD_CAM_EDM_DRO] Re: Stepper controller / driver for powerfeed

At 03:05 PM 10/1/2007, you wrote:

>Yes - BUT a DC servo motor with an encoder is better than both !!
>
>Dave

And the PID controller is much more expensive than a similar stepper
controller. This is a case where you get what you pay for and the
costs show up not only in the initial dollars, but in the setup costs.


David G. LeVine
Nashua, NH 03060