June 4, 2026
Description
A classic infinity cube (magic / folding cube): eight cubelets joined by
hidden pivoting links so the whole thing folds end over end and **everts back
into a cube**, over and over. Every one of the 48 outer faces carries a
different animal silhouette, so a new creature keeps turning up as you fold.
The links are captured inside the cubes by geometry alone (a bar that rides
inside a bored pocket and exits through a slot narrower than the bar). No living
hinges to snap, nothing to glue — it comes off the plate already a working cube.
Reprinted and confirmed everting on a real machine (see the photo of all
eight cubelets opened into the full ring).
Two STLs:
infinity_cube.stl— the eight-cube body with the animals recessed into every face
- infinity_cube_inlay.stl— just the animal silhouettes, sized to drop into those recesses
Print the body alone and the animals read as clean recessed engravings in one
colour. For the two-colour look in the photos: Import infinity_cube.stl,
then Import infinity_cube_inlay.stlinto the same plate — they share
coordinates so they land perfectly registered (**don't move them**). Assign the
inlay a contrast filament and slice. With 48 faces that's a lot of swaps, so
single-colour also looks great.
0.2 mm layers, 3 walls, 15 % infill, PLA or PETG.
- Supports: ON — the captured links need support under the bored pockets;
auto-supports tear out easily afterwards.
- Work the cube a few times once cool to free the links.
The folding mechanism is ported from Jan Pieper's "Sturdy Infinity Cube"
(MIT licence, STLs CC-BY-4.0). Thank you to Jan Pieper for the field-proven link
design. The animal engravings and two-colour inlay are added on top.
License:
Creative Commons — Attribution