Make a Dodecahedron Out of Plastic Straws

Whether your looking for fun party or garden decorations, a way to lighten up your living/working spaces or a great way to teach geometry, this is one in a series of instructables that will show the way!

Step 1: Gather Parts & Tools

1/32" thick sheet of of plastic (8.5" x 11")

30 Drinking Straws

Step 2: Cut Hubs

The attached dxf file can be used to lasercut the (20) 3-pointed hubs that are needed.

The hubs should be cut out of 1/32" thick plastic (PETG or equivalent). You can also print out the pdf version on 8-1/2" x 11 paper to use as a template for cutting them out with scissors or with utility knife on a cutting mat. This is best done by temporarily mounting the paper on your sheet of plastic with a light coat of spray mount, then peeling the paper off along with the plastic sheet's protective layer after the cutting is completed.

Step 3: Assemble

To assemble, using the video as a reference, carefully slide straws over the (20) three-pointed hubs and interconnect each one until you have completed the 12 sides of the dodecahedron!