Hi, this is a prototype of brushless motor made from broken old dc brushed motor. I made it from brushed motor that worked at 15000rpm in original. WARNING EXPLOSION This prototype require a metal shield on rotor to prevent explosion or increase the wall of rotor from 1mm to 3-4mm See on video the build and the first test and what happen .. I hope you like it ;) https://youtu.be/yf7VVtywgVw