I'd love to know how this works out for you. I was trying to do something similar, but got stuck. The core issue is that the fluent object design approach mak

I'd love to know how this works out for you. I was trying to do something similar, but got stuck. The core issue is that the fluent object design approach makes it very difficult to decompose objects into reusable features. The shared state behind the fluent approach makes creating multiple sub-objects (to then combining them) difficult (maybe impossible). The power of Python gets limited to thinking about only one thing at a time. See https://github.com/dcowden/cadquery/issues/167 https://github.com/dcowden/cadquery/issues/167 They are trying to fix this in 2.0, but that's still in early development.