[cm2187]

Agree but you quickly run into its limitations. Like if you 3d print something, you need to eliminate when possible sharp edges. That's not fun to do with OpenSCAD.

[m4rtink]

BOSL2 can help with that:

https://github.com/BelfrySCAD/BOSL2/wiki/rounding.scad

https://github.com/BelfrySCAD/BOSL2/wiki/Tutorial-Rounding_t...