Mesh modeling in blender has similar downfalls to OpenSCAD. When you’re designing a bit of precision equipment (or what have you) you don’t want your circles tu

Mesh modeling in blender has similar downfalls to OpenSCAD. When you’re designing a bit of precision equipment (or what have you) you don’t want your circles turned into high degree polygons. Can a lathe turn a polygon? Can a drill drill a polygonal hole? Maybe you can machine a polygon on a fancy CNC lathe, but you certainly wouldn’t do so for a turbine shaft. Also for less precise things, say construction, you care about dimensions. Select an arc to get it’s radius for instance. This is why design for traditional construction techniques best done in boundary representations: https://en.m.wikipedia.org/wiki/Boundary_representation https://en.m.wikipedia.org/wiki/Boundary_representation I will concede that one can easily create nasty insoluble problems with boundary representations if not familiar with the limitations of splines, but this only really is a problem with curvy things like ship’s hulls and aircraft.