Hello, I'm trying to convert a set of triangles to a solid, to be put in ACIS format. I don't know AutoCAD, but it seems like it should be capable of doing it. I've gotten as far as getting all the triangles into a single polymesh. I'm unable to either convert that to a surface or a solid, however. I am aware of a LSP app called m2s.lsp, but it doesn't seem to want to work on a closed solid. If anyone has any guidance, I'd be most appreciative.