Some cubes of ice, a set of dice, a battered cardboard box. GIRL 1: Now the next shape is a sphere. Try to make yourself into a sphere – a big ball! The boy tries to make himself into a sphere ...

[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 ...