Re: 8-wire stepper motor

--- In CAD_CAM_EDM_DRO@yahoogroups.com, "David Micklethwaite"
<d.micklethwaite@...> wrote:

>
> How do I work out the sequence of the coils and which end of the

coils in

> each pair I should make common?

I have had some luck. As the motor can be a generator, I hook up a
led/resisitor accross each coil one coil at a time, turn the shaft one
direction. If it doesn/t light, reverse the leads on the led. This
will give the polarity of the coils. Then put two coils in series and
see if the led is twice as bright.

I hope this helps,
Clayton