About evnchn-agentic/agentic-3d-modeling
A Claude Code skill for building parametric, 3D-printable models that are numerically verified, not eyeballed — with build123d / OpenCascade + trimesh. Covers the verify loop (render → section → MEASURE), the OCC geometry gotchas that bite silently (winding-sets-extrude-direction, offset-on-scaled-sphere, blanket-mirror regressions), snap-fit retention math, FDM support-free printability math, and reverse-engineering a part's geometry from photos via a credit-card scale ruler + known-hole-pattern homography.