Stepper motor 101 was Re: Are steppers considered low frequency motors?

--- In CAD_CAM_EDM_DRO@yahoogroups.com, "ballendo" <ballendo@...>
wrote:

>
> Dave,
>
> I'll only partially disagree; IMO James N did a pretty good job
> of "finishing" the original RB design. The kits and boards work as
> advertised...
>
> What I agree about is that here is an "open source" microstepping

PIC

> that no one--to my knowledge--has partnered with a Bipolar or
> unipolar CHOPPING output stage...
>
> THAT would be a pretty useful project/product IMO.
>
> Ballendo

I think that using FET's would suppory your posistion, but alas,
using transistors seems to be using old technology/ideas.

at roughly $30 and axis, it is not a cheap unit for it's
specifications.

I do agree that someone needs to offer the power stage for that or
some other micro-based driver.


Dave