Tutorials

Walkthroughs.

Full, real-part walkthroughs of the Cutaway workflow — slice an STL into cross-sections, fit them into clean arcs and lines, and rebuild the part in Fusion 360 with the free Fusion 360 add-in. New videos land on YouTube @Cutaway-hq first.

STL/Mesh to Solid — the full reverse-engineering workflow

2026-08-16 · 13 min

The complete path on a real part, start to finish: cutting face, planar and reference sections in the slice app, fitting clean arcs and lines (plus concentric / equal-radius constraints) in the fitting app, importing every sketch onto its correct plane in Fusion 360 with the add-in, modeling the solid over them — and verifying the result by overlaying the original mesh at the end.