Another time sponge, based on a square grid initially that was torturous to fold and pre-crease. Based on Eric Gjerde’s tessellation molecule, it is an amazing use of paper that features largely an “all at once” collapse.

Many tessellations sit flat while you do them, their interim stages are still flat – not this mongrel. Once you start, you gotta finish and then work out how to flatten – interesting but not very portable in the end. Continue reading →