Reuleaux Tetrahedron 3D Model over 1 year 17 Shrine of Pi | Pi Day 2021 3D Model almost 2 years 16 Desk Pendulum 3D Model almost 2 years 14 Cookie Cutters 3D Model almost 2 years 14 Lorentz Globe (partially successful) 3D Model almost 2 years 7 Canoe + Boat 3D Model almost 2 years 1 Fibonacci Cubes 3D Model almost 2 years 8 Antique Victrola Record Player Gear 3D Model almost 2 years 1 Wire Icosahedron 3D Model almost 2 years 28 Poincare Parallel model 3D Model almost 2 years 2 Pythagorean Puzzle 3D Model almost 2 years 7 Sphere Influenced by Poincare 3D Model almost 2 years 2 Platonic Solids for OpenScad - v0.5 3D Model almost 2 years 16 Lebesgue universal covering problem 3D Model over 3 years 23