CONCEPT; corners directly contact motor, each held by metal washer and metal male-female column.
PCD76 and PCD50 phase=45deg assumed; 2020=20x20x110 solid envelope; angle slot=9.5x5.5 assumed and set at middle.
Illustrative washer OD10x0.8; hex column across flats ~7mm height 7.1, male M4 assumed 8.8mm; 5mm enters motor.
PCB back z10.9; chip-to-magnet 1mm nominal. Actual fastener, pressure, tool, wiring, rotation tests absent.
Checked positive volume intersections >0.0001mm3:
none in checked pairs