###Note: For some reason, thingiverse is having trouble processing the images in time. Please refer to the "Makes" part for some examples.
Using a dodecahedron core and 12 Gatorade bottles (or similar 20-oz bottles, with an opening diameter of about 38 mm), we can make a spiky dodecahedron ( see 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 the bottle bottoms, say, using some screws? It works but is not safe for children.
I did a bit of brain storming and decided to make an adapter that simply snaps to the bottles and further highlights the center of each bottle. 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 could be used to hang the spiky dodecahedron from the ceiling if so desired.
Question: It takes about 1 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?
About the Files: Version A and version B are interchangeable. The only difference is in the gaps.
STEAM educator, learning from and working with K-12 STEAM teachers to explore new ideas of teaching and engagement. I firmly believe ART is at the core of STEM learning or all human learning! I owe my ideas and designs to the hundreds of K-12 children and teachers and university professors I have had the pleasure of working with, in multiple disciplines-- math, science,engineering language arts, social studies, early childhood education and more! All mistakes, of course, are mine! There is no warranty or liability whatsoever implied or explicit behind the designs or ideas. They are all posted for their potential educational values.
When working with children, please strictly observe all safety and health procedures! Please refer to the NSTA safety guides: http://www.nsta.org/safety/.
LGBU Contact: LGBU@SIU.EDU