I had one as a kid, and I remember how weirdly satisfying it was to twist it and watch the shape collapse. Now I designed my own wireframe Cuboctahedron in Onshape, printed it on my Bambu Lab A1, and it actually works: twist it and it shrinks down into an Octahedron, then pops back into shape again. No supports, and it comes in under 30 g, which still surprises me. It’s a simple click-together build too: 8 triangle pieces and 12 vertex connectors.

After a lot if prototyping i finaly finished my adjustable water nozzle t was an awesome project that taught me a lot, and I’m really happy with the result. It connects to a Gardena system and uses two Gardena O rings or printed TPU rings.