I am new in Rhino and I try to use Rhino as a input for other software and I need to be familiar with meshing and try to have good mesh. I noticed this message
" Mesh has 2 faces where the face normal differs substantially from the vertex normals.
Although this does not necessarily mean that the mesh is bad,
these normals can cause problems if the ultimate goal is for rendering or boolean purposes.
Mesh has 2 pairs of faces that intersect each other. Although this does not
necessarily mean that the mesh is bad, it can cause problems if you’re doing mesh boolean operations with it. "
However, I have no idea how to deal with it in order to fix this problem and make it clean. I would appreciate if anyone can help me out.