On Thu, 03 Nov 2011 11:28:28 +0100, Robert Roland
wrote:

On 02 Nov 2011 20:45:51 GMT, John Doe wrote:

I would really rather buy a gear puller. Is there anything for
pulling small DC motor gears off?

In the R/C world, the small gear on the motor shaft is referred to as
a pinion. If you search for "pinion puller", you'll get lots of useful
information. Here's a picture from one of the hits:
http://ep.yimg.com/ca/I/yhst-9458232..._2180_53538897

It's probably faster to make than to buy.
Like the nut cracker I made several years ago from a piece of 2" heavy
wall tube, drilled and tapped 1/2 - 13 for an extraneous hood pin.
Eventually the threads on the hood pin wore out so I substituted a
high quality (#5, #8) bolt; it is still in service. much less damage
to the kernel.
Gerry :-)}
London, Canada