Post boolean operation clean-up?

Blender’s boolean operations are like a very bad plane crash.

Is there a simple way to convert the tri’s to quad’s again? I tried selecting all and then using the menus and selecting convert to quads. Nothing.

There is a script around that gives better results:

Though it pays to do a little ‘pre’ planning.

For instance, if you’re subtracting an UVSphere from another mesh, it’s best to keep the poles pointing away from where you want to make the operation for a cleaner result.

Did you recalculate normals also?

No, the normals are fine. I just want my quad’s back. Thanks for the script link. I’ll give it a try.