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Unread 11-05-2015, 04:55 PM
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AKA: Brendan Simons
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Re: 110ft/s (75mph) robot design

Quote:
Originally Posted by Aaron Ng View Post
ahhh. i've seen those before, but i don't know how they work. do they shift with a wire like a traditional bicycle?
They work with friction wheels that turn in a toroidal cylinder (some car CVTs work in a similar method). They're also really wasteful, < 85% efficient.

If you were going to use a bicycle hub transmission, get something like a shimano alfine 11. . Just make sure to cut the current during the shift, because the won't shift under full torque.