Rhombic Dodecahedron "Truss Half"
3D-printed building block that doesn't need supports and is lightweight !*
You can stack the blocks by matching lozenge faces or the flat unique face created by the cut.
Cutted in half enables one to use it as the first step of the "building".
You can turn each block on all axis and imagine what you can do with a lot of them !
The scale of the mesh can be modified when you 3d-print, of course, but novices in 3d-print don't know that's so easy, so I have to insist on that argument : anyone can print it at the needed size.
I suggest to check what size you get at 100% (or 1000% in some cases), then play with it. This is very important: at small scales the bars get too thin and weak and could be enlarged. At the opposite, with big scales... you should try some mechanical stress-tests (in all cases btw).
WHY "HALF" ? Because 3D Printers using FFF create supports under some parts of complex objects, so I cutted in half this one and added 7 central truss-like "poles" intersecting in the center where you can see a ball ! Voila !
License : Attribution 4.0 International (CC BY 4.0) https://creativecommons.org/licenses/by/4.0/
*under development, alpha version 0.01 !