[Piezoid]

> - good for modeling mechanical parts / lousy for modeling anything organic-looking

SDF modeling is great for organic shapes.

On the surface, it feels similar to OpenSCAD since CSG operations are natural primitives (min/max/...). Fillets / chamfers are easier to produce, compared to OpenSCAD: http://mercury.sexy/hg_sdf/#snippet

Libfive is one implementation geared towards CAD work. One issue with SDFs for CAD is that it can be difficult to work on complex models. The representation is not minimal: two SDFs can represent the same volume, but act differently when you combine them with other bodies.

Libfive's "stdlib" is quite minimal. For anything fancy, you have to build your own "DOM" on top of it, in order to organize your parametric models. I have not enough experience for that, but I think that it should be possible to build a DSL that render to an SDF expression, while supporting introspection, constraint solving, AD for gradients, etc, with goals similar to CadQuery (I don't like the stack API either). This might also help with the normalization issue above.