December 30, 2011 AT 8:27 am

Self-Balancing Electric Unicycle

Unicycle1

Self-Balancing Electric Unicycle. Stephan writes -

I recently built a partially self-balancing electric unicycle called “Bullet,” featuring:

I say “partially” self-balancing because it only balances along one axis (forward/backward), and the rider still needs to balance left and right (it’s analagous to riding a bicycle “no hands”). It operates much like a Segway — you lean forward to accelerate, and lean back to brake. The top speed is about 15 mph, and it easily goes 5 miles on a single charge. This is my primary mode of transportation on the MIT campus.

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