I’m trying to “drill” a hole through a hollow ovoid with a cylinder. The ovoid has wall thickness. I thought the difference operation would do what I wanted. But after trying combinations of difference, intersection, and union with the modifier applied to either the ovoid or the cylinder, I still can’t get what I want. I would like to perform the operation and delete the cylinder and be left with the hole. Am I missing something simple or do booleans not work this way?
Try checking your normals and making sure the ones on the outside of the egg point out and (more likely the problem) the ones on the inside point in.
Thanks for your response.
It took me a while to find how to display normals and in the meantime I had flipped their direction several times. I got the outside of the egg set to normals pointing out. But the egg itself is a boolean operation and I can’t think of a way to select only the inner face to allow checking its normals. Short story is, I’ll start over and build the egg a different way that will allow me to check both inner and outer normals.
So I still am not sure if that is preventing the drill operation. But you’ve given me a direction and I’m gonna chug ahead. That’s a big part of my learning process right now. Thanks again.