Re: Unipolar or Bipolar?

With the high voltage, you would be better served with something over
60 volts.

The motors themselves are not bi-polar, or uni-polar, only how you
power them makes them bi-polar or uni-polar. Then they are only
connected bi-polar or connected, uni-polar.

Bi-polar will offer better performance.

so that puts you into the chopper, bi-polar, 60-80 volt range.
the low amps means you could use quite a few drivers, check the
ratings.

Microsteping will offer much smoother response and does not cost a
lot more.

I think that with the high stepper voltage, you might be better with
a Gecko, but that is just my opinion.

Dave





--- In CAD_CAM_EDM_DRO@yahoogroups.com, "g_f_bravo_g <factor@f...>"
<factor@f...> wrote:

> Hi CCED group gentlemen,
>
> I am modifying my Grizzly mini mill to CNC, I have bought Nema 32
> Vexta PH-296-2B steppers, with 5 volts, 1.25 Amp, 6 wires.
>
> After read several messages in this group I continue with the
> following doubt:
>
> Since that steppers are Unipolar (6 wires), I don't know what
> controller is better for good speed performance, Bipolar Chopper
> (like 297/298), Bipolar Microstepping (like Xilotex) or Unipolar
> Microstepping (like Linistepper).
>
> Thanks,
>
> German