eMagnet Wheel

thingiverse

video: https://youtu.be/WlR9Bqamtds https://youtu.be/NiNeLXQABdc Little gadget - "eMagnet Wheel" - a nostalgic tribute to 80's German gadget magazines, specifically "YPS" (issue "Sonderheft Nr. 5"). This easy-to-print and set-up device showcases the humorous side of electromagnetism in action. Users have the option to choose between 3D printing or laser cutting the main wheel for a customized look. The spinning speed of the wheel can be adjusted by tweaking the angle of the lever, adding an element of experimentation to the design. A SketchUp file is included for users who want to customize their eMagnet Wheel further. Bill of Materials: * 12 x screwable neodymium ring magnets (N50, 10x3mm) * 12 x screws (M3x10 flat head) * 12 x square nuts (M3x5x2) * Optional: 12 x 14x3 neodymium cylinders Additional components: * 1 x M5 x 20 screw and nut * 1 x 5x11x5 ball bearing (685 ZZ) * 1 x electric lifting magnet (12V DC, 5.5 LB) * 1 x reed switch (magnetic reed switch, 2.5x14mm) * 1 x 9V battery and battery clip * 1 x 5mm LED * 1 x 470 Ohms resistor * 1 x 1N4148 diode Circuit: LED and resistor connected in series to the reed switch and battery (note polarity!) Electromagnet parallel to the LED and resistor Diode antiparallel to the electromagnet Power Consumption: Approximately 10mA when the wheel is spinning 0mA when the reed switch is not closed