Here are two puzzles made of 7 pieces that can be assembled into a cube. The puzzles are based on a 3x3x3 cube composed of 27 subcubes. and have six pieces of 4 subcubes and a single piece of 3 subcubes. OpenSCAD code is included.
mkt_4444443.scad | 10.8KB | |
puz_4444443_1.stl | 22.8KB | |
puz_4444443_3.stl | 31.3KB |