Big 3D printed BLDC with partial stator

thingiverse

I created this motor to experiment with an idea of a motor featuring partial stator. It has direct drive wheels and axial flux, so I had to add two small bearings to support the rotor. The motor was printed in PLA but it melts over time, so if someone could please test it with different materials. Configuration: 60 poles on the rotor 6 poles on the stator Here is a short video of it working: https://youtu.be/qhBkIagETwc List: Print 1 x each part. 0.3mm copper wire 60 - magnets, 10 x 5 x 3mm in size 1 - 626 bearing (6 x 19 x 6mm) 2 - cooler bearings (3 x 8 x 4mm) 1 - M6 x 18mm screw 2 - M3 x 10mm screws 2 - M3 nuts 2 - washers, 3mm thick (spacers for the small bearings) 3 - 3mm screws for plastic (fix stator on arm) 6 - iron cores (6mm diameter x 10mm height) 1 - cable tie Instructions: Assemble magnets on wheel in pairs (N-S-N-S) and the 626 bearing. Insert iron cores into Stator bottom and add Stator top. This will create a space between printed parts of 5mm. Assemble small bearings on arm with M3 screws and nuts according to picture. Don't forget spacers! The step below is just a suggestion. If you test different winding configurations, please post it here: Cut 3 copper wires of 1.5m for each phase and wind 25 turns on each core in pair (U1-V1-W1-U2-V2-W2). Solder as star configuration. Fix Stator on Arm with 3mm screws and use cable tie to support cables. Using M6 screw, assemble wheel on arm. I used a Hobby ESC 40A to test it.