Hamster Wheel 21 cm With LED silent with bearings

thingiverse

Hamster wheel 21 cm Diameter with LED power generator. The LED lights up by the power generated in the hamster wheel by the hasmter. Demo: https://www.youtube.com/watch?v=U39vekesSvY You will also need: -M5 Threaded rod or Shaft ~10 cm (Or long M5 Screw) -4x M4 Screw and Nut -Rubberband (kitchen kind is ok) -Random electric Motor I used one recycled from an old tape deck. Motor Type is RF-500TB-12560 (https://www.amazon.de/s?k=B08F55ZP34&__mk_de_DE=%C3%85M%C3%85%C5%BD%C3%95%C3%91&ref=nb_sb_noss) 2 LEDs Amber. (https://www.amazon.de/s?k=B07RRD2RF9&ref=404_search) optionally 2x ball-bearing 5x10x4 Bearings are optional but reduce noice significantly and if your hamster is small it helps him overcome the friction. I tried many LEDs but only Amber/Orange and Red worked well because they use lower Voltage. Use two LEDs and solder Them Directly to the 2 Motor Pins with opposit polarity. This way one of the LED always lights up no matter which direction the hamster runs. I did not use any resisitors and the LED seem to hold up fine so far (2 Month), i guess the internal resistance of the motor is enough to protect the LED from burning up. If your hamster can move the wheel or the LEDs do not light up you can change the diameter of the guide wheel attached to the motorshaft. I just pressfit it on the shaft. Everything should print without support. The guide wheel needs to be clued together Models created wirh 123Design, .123dx file is attached.