Gatorade Bottle Project: From Dodecahedron to Icosahedron

thingiverse

Make, Learn, and Share to Minimize Plastic Waste This project will be donated to the local Science Center when completed. Using a dodecahedron core and 12 Gatorade bottles (or similar 20-oz bottles with an opening diameter of about 38 mm), we can create a spiky dodecahedron, as shown on Thingiverse at https://www.thingiverse.com/thing:3806798. The structure invites more tinkering since the bottles form 20 triangles. What if we connect the center points of all bottle bottoms using some screws? It works but is not safe for children. After some brainstorming, I decided to make an adapter that simply snaps onto the bottles and further highlights the center of each one. We could use rubber bands or yarn or thin ropes to connect all the pegs/pins. And now we have a big icosahedron around a small dodecahedron! Of course, a single adapter can be used to hang the spiky dodecahedron from the ceiling if desired. It takes about one foot of yarn to connect two pegs. How many feet of yarn does it take to connect all the pegs to triangulate the whole structure? Version A and Version B are interchangeable files, with only a difference in gaps. See Also: https://www.thingiverse.com/thing:3806798