Fillets

[adamchalmers]

Fillets are critical and we have to make sure KCL can express them easily.

I'm going to talk to the more CAD-experienced KC employees about how fillets actually work in practice and get some user stories.

Incomplete list of ideas:

• Support rounding edges of 2D solids, and extruding them into 3D with rounded edges
• Operations on 3D shapes (e.g. union/intersection/difference) should take a Fillet parameter to describe how to round the edges