Why my STL to CAD script was 8 mm off on a printer part, and the fix

mesh2cad 0.13.0 exports the Prusa MK3S Y motor holder as an editable OpenSCAD and CadQuery script. The old approach intersected full-length silhouettes and missed by 7.9 mm. A union of partial-depth extrusions gets it to 0.18 mm.