Re: Stepper Dissasembly

Hi,

Option (1) is my choice.

If the rotor has been removed, it is probably de-magnetized and it
will murder drives. Also it is tough to tell if it has a shorted turn
in the winding. The givaway is increased detent torque over a good
motor. This will also make it a serial killer of drives. It probably
was in the trash for a reason:)

Mariss

--- In CAD_CAM_EDM_DRO@y..., Chris Stratton <stratton@m...> wrote:
> I've got another size-34 stepper from the trash at MIT, this one
> without a backplate on it. Electrically it is fine. So I machined
up
> a replacement backplate, however the rotor binds in some positions.
>
> Should I:
>
> 1) use it as a paperweight
> 2) make another backplate with some means of centering the bearing
> 3) pull out the rotor (possibly weakening magnets?), clean, and
maybe
> take a very light cut on it in the lathe?
>
> I realize neither 2 or 3 is going to yield a great motor, question
is
> if it will yield something more than a paperweight.
>
> Chris
>
> --
> Christopher C. Stratton, stratton@m...
> Instrument Maker, Horn Player & Engineer
> 22 Adrian Street, Somerville, MA 02143
> http://www.mdc.net/~stratton
> NEW PHONE NUMBER: (617) 628-1062 home, 253-2606 MIT