[Gmsh] Problem with duplicate triangles in STL files

[Vahid Tari]

Hello,

I am using Gmsh to merge some .STL files, and to generate volume mesh after
merging. unfortunately, I get the warning of duplicate triangle in the
merged .STL file.

I attach couple of slides that show the process of merging two parts, as
you see in the slide these two parts share the same boundary.

I would be grateful if you tell me how I can remove duplicated triangles in
the generated merged .STL file.

Best,
Vahid
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