Packing-puzzle dn6 has a straightforward goal: Pack nine pieces in the box. The pieces are one 2x2x2 cube and eight 2x2x2 cubes with two cubies missing in opposite
...Plus corners. The box has internal dimensions of 4x4x4 with holes in two opposite sides. So there are choices to make...what goes in where? There is a unique solution.
DIY printers can get the STL files through our shop, see: http://www.np.works/2022/01/dn6.html