Spinner Spinner
von Nevil_Clavain
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This turns a 3 arm fidget spinner into a brushless DC motor. Magnets are placed on each arm. As they spin underneath the magnetic field sensor: http://www.goldmine-elec-products.com/prodinfo.asp?number=G21384, the sensor turns on a MOSFET transistor which in turn sends current through the coils underneath. The coils then push against the magnets. This is kindof a cobbed together project just meant to inspire someone. I obviously haven't documented it very well, but if people are really interested in building something like it I will try to answer any questions. The coils are from an old 3.5 floppy drive and I bought it surplus.
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