Rubik’s Cube, fully printable, 57 mm.

    The main source of smooth rotation is the use of springs and nylon washers in the center parts.

    The springs also allow the cube to be split apart if you cannot solve it normally. Simply remove any corner piece to disassemble it.

    To achieve the smoothest possible rotation, the cube was printed at maximum layer resolution (0.08 mm) using silk PLA. This filament does not handle overhangs well, so two parts (the corner pieces) were split to achieve clean prints. If you use regular PLA, no part splitting is required; just keep the same print orientation as shown in the STL files. Alternatively, print small parts separately and larger parts with a large spacing between them, around 20 mm. The core part, whether for heat-set insert nuts or the simple version should be printed with 3 wall loops.

   All parts were glued using gel super glue. To assemble the Rubik’s Cube, start by screwing 5 of the 6 center parts onto the core, then assemble the cube layer by layer.

    When gluing the colored plates, push them slightly toward the cube’s edges to eliminate gaps between adjacent plates of different colors on the same part.

Parts to print:

• Core: 1

• Center: 6

• Corner: 8

• Middle corner: 12

• Color set: 6

Additional parts:

• Screws: M3×16

• Springs: 5×15 (0.5mm wire)

• Nylon washers: M3×6×1

• Heat-set nuts: M3 4.5×4.5 (optional)