Rhombic Dodecahedron Box — one part printed twice, magnets sealed inside

A 64 mm rhombic dodecahedron that opens at its equator and snaps shut on buried magnets.

ONE STL, printed twice — the halves are congruent, not mirrored, so there is no separate lid file. Print the same part in a second colour and the chamfered equator reads as a deliberate seam. About 10 g and an hour per half, no supports, ~48 cm3 inside.

The Magnets Go In During The Print

Eight 4 x 2 mm discs, four per half, fully enclosed in the wall — 0.6 mm of plastic under each, 1.0 mm bridged over it, sealed on every side. No glue, nothing visible, nothing that can fall out.

1. Slice at 0.2 mm layers. Not optional: the pause is sized in whole layers.

2. Pause at Z = 2.80 mm, the last layer with the four bores still open. In Bambu Studio drag the layer slider until you see them, then + on the slider -> Pause.

3. Drop a disc into each bore (pocket 4.2 x 2.2 mm, slip fit, sits 0.2 mm below the rim).

4. Resume. Do both halves.

WHICH WAY UP: two of the four bores have a notched rim. Mark the top of your disc stack and call it the dot face. On BOTH halves, notched = dot UP, plain = dot DOWN. Flipping the whole convention is fine; a different rule on the second half is not. One mating orientation — line up the notch on the equator corner of each half.

Rather not pause? Set seam_floor = 0 in the SCAD for open pockets you glue afterwards.

AMS colour splits are included. Import a set as one object with multiple parts, never Split to Parts — that would fill the sealed cavities.

Print seam-down as exported, brim recommended. Rhombic dodecahedra are space-filling, so a pile self-locates.