29 Jun '17, 8pm

Three Magnets Make Fidget Spinners Amazing And Only Engineers Will Appreciate This Hack!

Three Magnets Make Fidget Spinners Amazing And Only Engineers Will Appreciate This Hack!

The fidget spinner posts will continue until morale improves. This time, we’re looking at [TannerTech]’s electromagnetic accelerator for a fidget spinner . [Tanner] can spin his fidget spinner electronically using parts he had sitting around and a clever application of magnets and relays! Engineers hate him! [Tanner]’s build consists of three magnets mounted on the tip of a fidget spinner’s arms, with the North pole facing outwards. The ‘drive circuit’ consists of an electromagnet — an inductor [Tanner] found in an old TV set — a reed switch, and a MOSFET. When the circuit is placed next to the fidget spinner, the reed switch closes, powering the electromagnet, pushing the tip of the fidget spinner forward, and starting the cycle anew. Think of it as the same technology that goes into a particle accelerator or a maglev train. Or a brushless DC motor. Haven’t gotten your da...

Full article: http://hackaday.com/2017/06/29/three-magnets-make-fidget-...

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