Icosahedron, hollow

thingiverse

I created an intriguing icosahedron for a friend, possibly the first hollow one in our area. I'll provide my source file too. It was enjoyable to model as it can be assembled using three perpendicular golden rectangles. I printed mine at 50% scale with 0.4mm layers, resulting in walls that were precisely 3 extrusions thick. However, ensure proper temperature and feed rate settings to prevent the top from drooping during bridging.