Fixing Invalid Mesh in Grasshopper

Hello
you are not alone, since V6 mesh must be better!!

I do that

  foreach(Mesh stlMesh in stlMeshes)
      {
        stlMesh.Vertices.CombineIdentical(true, true);
        stlMesh.Faces.CullDegenerateFaces();
        stlMesh.UnifyNormals();
        stlMesh.RebuildNormals();
        stlMesh.Compact();
      }

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