Remodled Microwave Fan Rotor(for generator conv.)

thingiverse

This is a completely rebuilt core from an old microwave fan motor, repurposed to hold six rare earth magnets that can transform the fan into a working generator. While this project isn't yet complete, manually spinning the axle does produce a small amount of voltage across one of the coils. Tearing down the motor and identifying the coils can be quite involved if you're not familiar with the process, but it's definitely doable. Leave one bearing in place to simplify the adjustment of distances during reassembly. To access the other bearing and original core, gently tap them off the axle using a rubber mallet - a hammer might cause damage. Next, carefully tap the printed part into position without breaking it; this requires finesse. After that, replace the bearing and put the housing back together. The motor I used had two speeds and different length coils, so I've only managed to get one coil producing electricity because I shortened the other one. This project is still a work in progress. All measurements shown are approximate, but the closest magnet dimensions will likely match those displayed. I'll update this information as I continue working on it, probably at a leisurely pace. If you spot anything missing, please let me know.