Nominal gap 1.4mm: 7mm standoff body, 0.8mm motor washer, 0.5mm encoder shim.
M4 male 8mm; through 3mm angle and 0.8mm metal washer, nominal motor engagement 4.2mm.
M4 top shank 8mm through 0.8mm top washer + 3.2mm bracket + 0.5mm shim, female entry 3.5mm.
Intersections above 0.001 mm3, selected complete simplified assembly pairs:
none