Not satisfied with the specs of off-the-shelf brushless DC motors? wanting to up the problem level on your next quadcopter build? Or possibly you just define “DIY” as rigorously as possible? If any type of of those are true, you may want to inspect out this hand-wound, 3D-printed brushless DC motor.
There may be one more reason behind [Christoph Laimer]’s develop — moar power! The BLDC he produced looks much more like a ceiling fan motor than something you’d see on a quad, as well as clocks in at a respectable 600 watts as well as 80% efficiency. The motor utilizes 3D-printed parts for the rotor, stator, as well as stator mount. The rotor is printed from PETG, while the stator utilizes magnetic PLA to boost the flux as well as deal with the warm better. Neodymium magnets are slipped into slots in the rotor in a Halbach plan to boost the magnetic field inside the rotor. balancing the weights as well as strengths of the magnets as well as winding the stator seem like tedious jobs, however [Cristoph] offers comprehensive directions that ought to see you with these processes. The videos below shows an outstanding test of the motor. even restricted to 8,000 rpm from its theoretical 15k max, it’s a bit scary.
Looking for a much more academic that useful BLDC build? try one cobbled from PVC pipes, or even this see-through scrap-bin BLDC.