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Originally Posted by Dr.Bot
I did this as an experiment using the plastic gearboxes, shafts and axels suplied by first and purchased gears - there is a post somewhere of someone else who did this. The Chippawa moters fed into this I think it was a 30 fold reduction - so the speed was about 4fps. So comparable to a Fischer Price, but much more powerful, Unfortunately my entire robot platform was thrown out in a fit of spring cleaning - the gears cost about 300 bucks for two sets.
I had some pictures, put heck if I can find them.
SO worm gears will work, and you can make the transmissions with just a good drill press if you are carefull and precise.
I got the gears from "Boston Gear"
worm GH1076RH gear G1071RH
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Boston gear also produces stock worm drive gear boxes, they're really efficient for worm drives and are quite heavy duty. we used one in our drive train last year and it worked beautiful.
Picture Here. I beleive these were a 20 to 1 reduction and these had no backdrive.
-Pat