velosynth spoke magnet
Description
secures a magnet to a standard-sized bicycle wheel spoke for detecting speed with a hall effect sensor. the form can be easily modified to accept a range of magnet sizes, but is provided to accept a 3/16" x 1/8" disc magnet (locally available in the US at Harbor Freight tools). we welcome derivatives designed to accept magnetic media of different sizes, please post them here on thingiverse to share. design process: http://bit.ly/6mtnVE more info: http://velosynth.com
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