Geremy and I continue the search for a source for worm gears. We get a bit closer all the time. I now have a Canadian manufacture, but the expense is greater than I'd anticipated. Other sources to recycle them from other types of machines will likely only garner plastic pieces which won't hold up t the work we need them to do. One example of a source is the photocopier and the VCR, both of which might be acquired inexpensively for parts but may not be worth the bother. A conundrum.