Tape. It is not allowed. Origami models are traditionally made with one piece of paper (Robert Lang has some amazing examples) that is only folded - never glued, taped, or cut. Modular origami follows the same rules - no glue, tape, or cutting - but allows multiple pieces of paper (Tokomo Fuse makes beautiful modular designs). But guess what, I'm not Tokomo Fuse or Robert Lang, and neither are you... // Hacktastic

Time to level up! There are many ways to assemble a Level 2 from Level 1's. One way is to use more general forms of tripods; this is what Jeannine Mosely's Level 3 sponge project did. We need something quicker, more accessible, easier for everyone working on the project, and that really shows off fractalness. The idea we have may or may not work, but either way this has "hacktastic" written all over it... // Hacktastic

Juila sets can be realized by an inverse-iteration method which is self-correcting; wherever you start from, this process will lead you closer and closer to the Juila set, and if you make a mistake then further iterations will get you back on course. Glen Whitney had the genius idea of making a clock-like linkage that takes square roots of complex numbers to enable this inverse iteration... // Hacktastic

Today we continue our step-by-step walkthrough of building a Level 4 Menger cube out of business cards. If you want to join the fun then sign up now at www.megamenger.com. You can help with an official Level 3 build site, contribute a Level 2, be your own Level 2 mini-site, or even take part as a Level 1 micro-site. Things get interesting when you attach the cubes together... // Hacktastic

Time to begin again: new blog, new rules, and a Level 0 Menger sponge - better known as a "cube", or "hexahedron" if you're fancy. This cube is made out of six folded business cards, and it is going to join 159,999 other folded business-card cubes in the completely crazy, unreasonable MegaMenger project to build a worldwide distributed Level 4 Menger sponge... // Hacktastic