Here you can find stuff I made, mostly for doing scientific outreach, but also because they are beautiful, and I love to have them at my office or at home.
Baumslag-Solitar Cayley graphs
Baumslag-Solitar groups are amazing, but sometimes hard to visualize. I made some models and 3D printed some of them.
OpenSCAD model: BS_1-n.scad (2 kB), with many parameters: n, depth, diameter of edges, size of the nodes, ....
OpenSCAD model: BS_m-n.scad (5 kB), with many parameters: m, n, depth, diameter of edges, size of the nodes, ....
Ready-to-use stl file: BS_2-3.stl (49 MB)