I’m doing a demo on using the ‘Find Edges’ command and using it to define the non-manifold problem. The problem is that I have created a non-manifold edge, but Rhino does not recognize it as such.
From McNeel website / definition of Nonmanifold : Edges of polysurfaces or meshes that have more than two faces joined to a single edge are non-manifold. See pic.
My model meets these conditions, but I can’t get the command to recognize my crappy modelling!
Rhino file is also uploaded.
Non-manifold.3dm (95.2 KB)