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aeropic mechanical 7 segments display

This is my attempt to build a mechanical 7 segments display with the following requirements : Only one motor to drive one digit High visibility Small enough Nice looking segments with 45° angles at the tips Cheap Quiet but reproducing as far as possible a clicking noise like vintage flipdots displays Able to self-detect its origin as the idea is to build a clock with four of them… The basic concept is then to get flipping black and white segments motorized only from magnetic fields. If you place a compass in front of a magnet it will rotate and align itself into the magnetic field. Rotate the magnet the compass will follow. Here the segments include a small magnet and geared wheels will successively present north/south poles of magnets in front of the segments’ magnets to rotate the segments. One wheel with 10 magnets is rotating in front of one segment. The 7 wheels are all geared and synchronized by the rotation a single cheap stepper motor. A hall sensor will detect the origin. An ESP32 is driving the stepper motor. That is ! detailled instructions on Thingiverse: https://www.thingiverse.com/thing:520... The hackaday page: https://hackaday.com/2022/03/05/one-s...