Blender 4.2 LTS – 5.2 LTS
Clean a photogrammetry scan in Blender: the 10-step manual method
Non-manifold edges, interior faces, doubled vertices and n-gons, fixed by hand — so you can see exactly what an automated pass has to get right.
Tutorial scaffold. The body gets written with real screenshots, measured numbers and the exact steps — see DOCUMENTATIE.md §6.8 on thin content.