Boolean operations consistently producing weird results I have two cubes. One is 6x6x6 and the other one is 4x4x4. I am careful to ensure that the normals are properly facing outward and that the scale and location has been applied. Yet no matter what I try and do, the boolean union seems to fail. 



What am I doing wrong?
Blender's Boolean operations are still lacking a lot. There isn't really anything that you can do about this. I do believe that there was some kind of add-on that fixed a lot of issues but I can't remember the name.

Maybe the Boolean operation within Edit Mode could give you better results. To do this (be in Edit Mode) press Spacebar and search Boolean. Choose the Boolean in Edit Mode option. Here is the official documentation: Link