So here I am building along and I decide to boolean unite a revolved shape with an extruded shape. Simple enough, I’ve done it a zillion times. Only now, I try to perform the basic operation and the results are catastrophic. The union distorts the rendering like it was smashed by a truck. This all started yesterday when I pulled a simple model off of GrabCad. I picked up a simple calliper adapter to add to my project. When I looked at the holes in the adapter, the were distorted. The lines that made up the interior walls of a basic tubular hole were broken and at odd lengths. So I extracted the inside surface and rebuilt a new wall. All was well. Today, I can’t seem to get anything to work.
Tried that. No change. So I try something else… I remove the extruded cylinder and extract the backside surface of the revolved shape. OK, now reattach the backside with the join function… just look at what happens!