Rotellino is a cheap DIY bicycle light, simple to build and battery free.
Rotellino creates electricity almost frictionless because it uses the variation of the magnetic field generated by the wheel rim (Eddy current) to make a rotor rotate with 6 neodymium magnets and generate the current needed to power 2 LEDs.
More information : https://www.instructables.com/id/Rotellino-3-Battery-Free-Contactless-Bike-Light/
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| bottom.stl | 439.7KB | |
| holder_1.stl | 138.0KB | |
| holder_2.stl | 108.0KB | |
| rotor.stl | 296.3KB | |
| top.stl | 421.7KB |
