The general idea is that technologically superior alien civilizations might build gigantic structures surrounding their home ...

[DaveMakesStuff] demonstrates a great technique for 3D printing a sphere; a troublesome shape ... Vase (or spiral) mode prints an object using a single, unbroken line of extruded filament.

A curtain opens on a stage to reveal different shaped animated characters - a sphere, a cube and a pyramid. NARRATOR: It's crunch time for the 3D crew. And who's going to take home the coveted ...