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Pedal Powered Tennis Ball Launcher Drive Mechanism

by Engineerable
Closeup view of the drive mechanism for the pedal powered tennis ball launcher. Bike wheel turns on a bike hub. Bearing blocks made from bike headsets, with sprockets welded on. Shaft sits in a bushing made from a rubber cork to allow for axial mi...

Runtime: 00:46

From: icon Vimeo   URL: http://vimeo.com/8395948
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