What is a Blender Weighted Normal ?
Every flat surface has a normal that points outwards at 90 degrees to the face. Every bevel has its own normal for each face segment. When smoothing is applied, Blender tries to average out the adjacent normals to provide the illusion of a smooth curve. The problem with this is that a large flat face next to a small thin bevel will be influenced excessively by the bevel’s normal…

