Cụm xếp chồng rhombic dodecahedra

These work better than they photograph. For some reason my printer leaves a lot of threads as it moves between the small spots on each layer. For another way to build the same kind of lattice, see https://www.printables.com/model/1561669-ball-and-stick-components-for-rhombic-dodecahedron

There is a single dodecahedron, four packed in a layer, and three packed in a layer for an alternate orientation. The last one is built with a support that is easy to snap off.

These are a little fragile at the given scale but will print at 150% the size. I have not tried any larger. At some point, the bridges will be too long.