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Assembler Contactless Eddy-Current Bicycle Dynamo and Light

A 3D-printed battery-free bike light: a magnet ring spun by eddy currents from the moving rim drives a hand-wound coil that lights an LED · 6 étapes · Par William Kennedy (zumdar), with Lucas Ray…

Gather the parts
Build the bobbin
Wind the coil
Wire and close the dynamo
Mount and magnets
Light and mounting

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