About m-esm/3d-print-modeling
Design FDM 3D-print parts as parametric Python (trimesh + manifold3d + shapely, or build123d), then view and screenshot them headlessly so Claude checks the geometry by eye on every change. No GUI CAD (no OpenSCAD, FreeCAD, or Fusion). The geometry engine is pip-installable, the viewer runs in a browser, and "done" means Claude actually looked at the render from six angles, not "it's watertight, ship it."