Comment by YuechenLi
4 hours ago
To be fair, arbitrary fillets/blends on edges is a hard problem in general for Parasolid/ACIS because you are trying to mutate arbitrary topology, essentially guessing vertices/edges/faces and trying to stitch the back together.
This is true, but in things like OnShape I can do it with two clicks whereas in OpenSCAD it's always at least 20 minutes of thinking and trying out.
OpenSCAD is super cool and my go-to for simple things, but for anything more involved than a cube or cylinder with some cutouts I tend to revert to "normal" CAD programs.
The BOSL2 library makes it easy: https://github.com/BelfrySCAD/BOSL2/wiki/shapes3d.scad#modul...