Faces - A face is a flat surface on a 3D shape. For example a cube ... Triangles, pentagons, hexagons, any shape. And a circle becomes a sphere with just one large, curved face, like a ball.

[DaveMakesStuff] demonstrates a great technique for 3D printing a sphere; a troublesome shape for filament-based printers to handle. As a bonus, it uses a minimum of filament. His ideas can be ...

Have you ever wondered about the best way to pack a finite number of identical spheres into a shape-shifting ... the finite sphere packing problem through experiments in 3D real space ...