(20-04-2021, 05:47 PM)josemendez Wrote: The model is fine as-is in that regard. You can take a cube/prism, delete two faces, and it’s still 2-manifold, as it can be “unwrapped” onto a flat surface.
As long as the surface is orientable and there are no obvious non-manifold structures (isolated vertices, zero length edges, zero area faces, edges shared by more than two faces) it will work, so most meshes pose no problem. This post sums it up quite well: https://blender.stackexchange.com/questi...d-geometry
Hmm, so I've missed something with this net model, because if Obi isn't recognizing it, means that my model has some of the mentioned flaws.
Anyway, thanks, I'll revise my model or try to build another one and test it again...