For the last week I’ve been printing whatever polyhedra appeal to me, and today I realized that everything I’ve printed is a Catalan solid. Today is the fifth, the Triakis…
Another day, another Catalan solid. Today it is the Deltoidal Icositetrahedron, dual of the Archimedian solid known as the Rhombicuboctahedron. As we discussed yesterday, the fact that these are duals means…
Today’s print is yet another Catalan solid, the Pentagonal Icositetrahedron – dual of the Snub Cube which we printed with Poly-Snaps in Day 116, and giraffe-cousin of the Pentagonal Hexecontahedron we printed…
Continuing our string of Catalan solids, today we printed a Deltoidal Hexecontahedron. Thingiverse link: http://www.thingiverse.com/thing:272833 Settings: MakerWare custom profile described in Day 194, on a Replicator 2. Technical notes, math…
The Disdyakis Dodecahedron is a convex Catalan solid with a lot of cool properties, including: It’s the dual of an Archimedian solid, the Truncated Rhombicuboctahedon; It has 26 vertices, 72…
For the next week or two we will be modeling and printing wireframe models of various exotic polyhedra. On Day 192 we developed a method for doing this using Mathematica,…
Inspired by the many sets of polyhedral models on Thingiverse (for example pmoews’ Archimedean Solids, Johnson Polyhedra, and Catalan Solids, and pdragy’s Customizable Convex Polyhedra), today we experimented with ways to…
In bulk printing mode again. Over the past few days we have printed 100 of the Hinged Triangle-Square models from Day 189, for a giveaway at an upcoming conference. Many…
Today an amazing thing happened. It became possible to print a Sierpinski tetrahedron without internal supports on a desktop filament-based 3D printer. Not a fancy laser sintering powder printer that…
Today we printed the famous hinged dissection called the Haberdasher’s Puzzle from Henry Dudeney, who found a way to cut an equilateral triangle into four pieces that reassemble into a square.…
