We’ve used the 3D printer to make all sorts of things but the bulk of what we’ve made has something to do with science or math.
An older post discussed 3d printed meissner tetrahedra and I’ve made more of them but smaller and in blue filament. The first photo shows them as they’re being built. You can see how the printer deals fills internal space of a solid object with a certain amount of infill. You can set the infill from 0% (open space) to 100% (solid plastic). This is about 40% infill.
