Five puzzles each composed of 4 pieces one of which is a small cube that can be hidden inside the assembled puzzles. It was hoped that the puzzles would increase with difficulty but they are not that hard; maybe just difficult enough to engender a feeling of accomplishment.

OpenSCAD code with a description of their construction is included.

MakerBot

MakerBot Replicator (5th Generation)

Yes

No

0.3 mm

All the puzzles print quickly in draft mode without support.