Re: Yet another NEMA 42 roadblock

Hi Jeff,

go for half winding. leave 2 coils un-used. make sure the ends are
isolated from each other, no two wires touching, wire nuts and tape.

If it don't spin, switch a pair for a pair.

once you see it spin, you'll see how simple it is.

Search the list for 8 wire steppers, do it with google as described
in the files section, if you feel like you want more data.

Dave





--- In CAD_CAM_EDM_DRO@yahoogroups.com, "washcomp <jeff@w...>"
<jeff@w...> wrote:

> I'm still fighting the battle of my unmarked NEMA 42's
>
> I was all set to hook them up and I got a connection diagram from
> Superior Electric on their 8 connection stepper motors to make sure

I

> got the polarity of the windings right. They show windings from
> terminals 1-6, 2-3, 4-8 and 5-7
>
> I have continuity between:
>
> 1-6, 2-8, 4-7, 3-5
>
> I know that proper polarity is important and specific windings are
> important, but don't know how to proceed from here to identify the
> terminals without opening the stepper (which I understand is a no-

no).

>
> Please help.
>
> Clueless in Brooklyn
> Jeff