Thanks for the ideas. I'll try some sort of metal insert, pins or something.
There's not enough meat on the gear to just insert pins. Nice to know that
about plastic welding. The gear is on the first shredder bar. It's very
proprietary looking: hex hole, acts as the shaft in the bearing and is
stacked with the gear to drive the second bar. Sorry I don't know what 2
stacked gears molded together are called. It's like a step pulley.
Thanks
Karl

"Karl Vorwerk" wrote in message
...
I tried repairing the missing tooth on the nylon gear by welding some nylon
in place and then filed it to shape. It broke at the weld possibly due to a
lack of skill on my part as I've never welded plastic before and used a
piece of metal heated by my mapp gas torch to melt it. I'm considering
making a metal tooth screwed to a backing plate inside the gear rim. The
nylon gear is acting against a steel gear so I doubt it will cause too much
damage if it's a little off. The shredder was free because it was broken so
no great loss if I can't fix it. You can't buy a repair part from the
maker. My friend already tried.
Thanks
Karl