I'm totally new to Blender. Excuse me, if my problem is dumb.

I'm trying to model something rather simple from a mesh. A handle. When I try to merge vertices of those two highlighted faces, I'm getting pretty awful result with subsurf modifier. The same thing happens, when I snap one face to another and then remove doubles. I guess the root of the problem is something simple, but can't figure it out.

Highlighted faces I want to merge

And the result:

Bad result with subsurf modifier


1 Answer 1


Scale along the Y axis to 0 (S > Y > 0), delete the faces (X > Faces), and remove doubles (W > Remove Doubles). The issue you are having is there are internal faces, if you just remove the doubles, then there is still a face inside of the mesh, which leads to this weird artifact.

  • $\begingroup$ Now I get it. I forgot about those faces. Thanks a lot! $\endgroup$
    – Luk
    Jun 11, 2015 at 17:46

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