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Make Your Own Platonic Dodecahedron

Creation's quality: 5.0/5 (1 vote)
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3D model description

####Make Your Own Dodecahedron

Whenever possible, it is preferable that children make or even design their own models and further mathematize their experiences such as making origamis. After playing around with the angles of the Platonic dodecahedron, I designed a vertex connector and an edge which can be easily snapped together for a dodecahedron. The edge bars have some bumps at the ends to keep them from falling out.

Of course, one needs 20 (V) vertex connectors and 30 (E) edges. Once assembled, the dodecahedron has 12 (F) faces : V + F – E = 2.

####Among the Files

  1. Vertex connector at two level of tolerance (regular and loose)
  2. Edge bars of various lengths.


Please print one connector and one edge first to try out the tolerance. A resolution of 0.2mm works well for me. You can play with the resolution to adjust the tightness between the vertex connector and the edge. The loose version might be too loose, in which case some school glue could be used to keep the pieces together.

All Platonic dodecahedra are similar to each other. So if you want a large one, you could just use longer edges.

Have fun!

  • 3D file format: STL
  • Publication date: 2019/01/16 at 10:09



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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:




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