At 07:01 PM 1/15/2012, James Felder wrote:
>Excellent instructions, David. I will get on it� 
>just a question, thhough. Why not emery cloth?

I don't actually know.  It was passed down to me 
via some set of instructions on how to clean up 
the commutator on some particular motor - I 
forget what piece of gear was involved.  I used 
to think that emery might be conductive - if so 
it's in the impurities because the bulk of it is 
aluminum oxide.  But since I don't know, I pass it along.

Yours,
David