Ball In Cube

This is the world-famous Ball in Cube! There are many like it, but this one is mine. I tend to print these as a stress test and/or example print for new filaments I try. It can be a challenge to get the quality of the sphere looking nice and it would be awesome if anyone had any suggestions. Still, it's pretty good I think and if there was any (probably not) Ball-in-Cube contest, I'd enter this one. Features:25mm that scales well.Separate parts for optional dual color printingConcentric circles used to make cube opening and sphere looks nice and uniformSphere rests on the same surface plane as the cube (potential for no supports)Supports recommended but I've been able to print some materials without them.Fillets on all inside and outer edges for a nice pocket feelBackstory (cause why not):I wanted to learn about 3D printing and a maker space was one of the first places I took my now wife on a date (great time!). I only remember a few things besides how cute she looked. I sa