Re: stuck stepper

If there are wires touching, they must be internal.

The unit was mounted in some oil or other liquid. it had a seal on
the shaft.

There is some slight play with about 15 degess of motion in one spot
so I assume that it might be physical and not electronical.

Dave

--- In CAD_CAM_EDM_DRO@y..., "Scot R. Darr" <scot@c...> wrote:
> Are any of the wires touching when you try to spin it? My Vexta
steppers are nearly impossible to spin if some of the leads are
touching each other. When I separate them they feel fine.
>
> -----Original Message-----
> From: turbulatordude [mailto:davemucha@j...]
> Sent: Wednesday, September 11, 2002 3:13 PM
> To: CAD_CAM_EDM_DRO@y...
> Subject: [CAD_CAM_EDM_DRO] stuck stepper
>
>
> Hi all,
>
> I am trying to test my latest set-up and found one of my e-bay
steppers
> is locked up.
>
> NEMA34 single stack, and I have a tough time spinning it by hand.
> It's one of those high tech manufacturers, ASTROSYN !
> (yeah, I never heard of them before either)
> Minebea Co. Ltd, Thailand
>
> 1.7 V, 4.7 A and in series mode, my Gecko can get it to spin at
about
> 100 to 200 er.... 0.1 to 0.2 hertz
>
> Iwant to open it up and look at the bearings, but am not sure if I
am
> better off trashing it and getting a new one, or trying to fix this
> one.
>
> looking for recommendations.
>
> Dave
>
>
>
>
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