CONCEPT ONLY; corners are flush to motor; no spacer under PCD76 corners.
Support feet 0.5..3.5mm; shim 0.5mm; screw head 7mm dia x 3mm assumed; 0.2mm corner clearance.
PCD50 screw slots open toward -Y; all four are parallel.
Only 0.05mm theoretical slot-end clearance in motor corner as original direct check.
Intersections of support/shims/screw envelope with corners and rails:
none in checked pairs
Approx material area under 7mm screw head using 0.1mm sampled grid (mm2): 16.860, 16.860, 16.860, 16.860
Sampled lateral slide +Y to 0:
dy=5.0: Corner1 7.1166, Corner3 7.1166
dy=4.5: Corner1 7.1166, Corner3 7.1166
dy=4.0: Corner1 7.1166, Corner3 7.1166
dy=3.5: Corner1 7.1166, Corner3 7.1166
dy=3.0: Corner1 6.9637, Corner3 6.9637
dy=2.5: Corner1 6.3312, Corner3 6.3312
dy=2.0: Corner1 5.3233, Corner3 5.3233
dy=1.5: Corner1 4.0400, Corner3 4.0400
dy=1.0: Corner1 2.5662, Corner3 2.5662
dy=0.5: Corner1 0.9780, Corner3 0.9780
dy=0.0: no sampled volume overlap