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Re: pic: Gear Drive Concept
What's the benefit of using gears in the drivetrain over belts or chain?
IMO, gears are heavier, less flexible, more expensive, and easier to jam than either chains or belts. Perhaps they're harder to break (ie, to break them such that they will stop transmitting power), but I'd bet they're a lot easier to jam by getting something sucked into them. Also, having so many gear to gear contacts, I see a lot of places to lose efficiency.
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