Layout: 4 corner brackets and 20x20 solid profile envelopes; lift 0.0mm.
PCD76=45deg, oval width 5.5mm, slot offset +2.75mm outward, profile length 110mm all assumed.
M4 shank assumed 3.9mm: extreme position leaves 0.05mm radial clearance.
Encoder M4 head diameter 7mm height 3mm, 0.5mm bracket shim assumed.
Positive-volume collisions (>0.0001mm3):
Corner0 vs Bracket: 5.21058 mm3
Corner0 vs EncoderM4Head2: 0.11904 mm3
Corner0 vs Shim2: 1.30264 mm3
Corner1 vs Bracket: 5.21058 mm3
Corner1 vs EncoderM4Head1: 0.11904 mm3
Corner1 vs Shim1: 1.30264 mm3
Corner2 vs Bracket: 5.21058 mm3
Corner2 vs EncoderM4Head3: 0.11904 mm3
Corner2 vs Shim3: 1.30264 mm3
Corner3 vs Bracket: 5.21058 mm3
Corner3 vs EncoderM4Head0: 0.11904 mm3
Corner3 vs Shim0: 1.30264 mm3