Yes, believe it or not, balls can be difficult to model. I’m not sure what these parts were for, but they were for a paying customer. This was definitely a fun project. You often see those threads go around the forum where there is some sort of geometrical modeling challenge for some mathematically derived shape. Well, maybe for the first time, these models were created for some real purpose. There was no goal of making them in the minimum number of features, which was a good thing, because some of them had more than 20 or 30 features. They were fun to build, and not the kind of thing you run into every day. It’s just good to know that if you really had to do this kind of thing, it could be done.