Sorry, no OpenSCAD secrets, but a different tool: Cadquery has fillets in their quickstart tutorial: https://cadquery.readthedocs.io/en/latest/quickstart.html

Sorry, no OpenSCAD secrets, but a different tool: Cadquery has fillets in their quickstart tutorial: https://cadquery.readthedocs.io/en/latest/quickstart.html https://cadquery.readthedocs.io/en/latest/quickstart.html ...and the fillet command is built-in: https://cadquery.readthedocs.io/en/latest/classreference.html#cadquery.Workplane.fillet https://cadquery.readthedocs.io/en/latest/classreference.htm...