I made this in OpenSCAD, but I need something more flexible than a .stl. The best way to remake this would be using a parametric modeler perhaps, but I am reasonable sure that any future changes will be small. I love OpenSCAD, but maybe that is because its my only experience modeling parametrically. I wish it was NURBS capable. Rhino is, and Rhino has Grasshopper. Does anyone use Grasshopper on a Mac? I would love to learn it if its worth the effort. In the meantime I would like to build this on regular ol’ Rhino for the purposes of CNC fabrication. Are there any best practices when copying a .stl mesh using rhino? Right now I’ve got it divided up into layers and am basically just using it as a reference and rebuilding everything using the values from my OpenSCAD code.