Ball in a cage

thingiverse

Here's a result of my own "Ball in a cage" trial I once made with OpenSCAD - just eleven lines of code and done! I'd noticed that in my printed piece (check out the photo), the ball had only sixty faces, i.e. $fn=60, so the polygons showed way too clearly. In the attached STL file, however, $fn=180 has been used for smoother surfaces. Update: I've added the OpenSCAD source.