Re: A little experiment on demagnetization

Hi,
Not to respond for the writer of "3)" below, but, The extra wire in
the stepper motor (the second pair of two coils - 4 coils total), is
needed to allow the stepper motor to be run in unipolar mode. A
stepper designed strictly for bipolar use wouldn't need the extra
coils and would only have four leads (two coils total).

Jeff


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

>
> > 3) This voltage drop is meaningless while the drive is current
> > limiting at low speeds.
> >
>
> I don't know if I had too much coffee yesterday and not enough this
> morning, or what, but I'm no less confused now. It seems like you're
> writing that stepper motors could do away with half the wire used

and

> not lose any significant amount of performance, and/or, that stepper
> motors aren't thermally limited performancewise.