Re: breakout boards plus - hard choice

Jon

Isn't the promise of closed-loop steppers much bigger than you just laid out? I don't know
enough to understand what has to be implemented in software and what in hardware, but
realization of the 'unstallable stepper" concept at the DIY level seems to be just about
here, no? You must have had that in mind.

Steve

--- In CAD_CAM_EDM_DRO@yahoogroups.com, Jon Elson <elson@...> wrote:
>
> scyvt wrote:
> >
> > Pico's offerings are generally servo oriented, however the "The Universal Stepper
controller
> > is a small board with everything needed to control a 2-, 3- or 4 axis machine tool
with
> > stepper motors except for the stepper drivers."
> >
> > http://pico-systems.com/univstep.html
> Right, and you have the choice, by individual axis, to have it
> open-loop or closed-loop. The advantages with closed-loop are
> that you can shut off the stepper drives and move the machine
> manually without losing your axis coordinates, and that any
> excessive following error can be detected. You can always add
> this capability later.
>
> Jon
>