Stepper Dissasembly

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@...
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