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Infinity Cube, Magic Cube, Flexible Cube, Folding Cube for Flexible TPU filament

Creation quality: 5.0/5 (2 votes)
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3D model description

Infinity Cube, Magic Cube, Flexible Cube, Folding Cube

Yet another experiment using TPU—the magic/flexible/folding/infinity cube or whatever fancy name you could think of. In this 3D design project, I took account of the tolerance between the little cubes and the bending connectors among them using chamfer and grooves. It can be printed in one piece. The result goes beyond my expectations. It comes in three sizes: 20mm^3, 25mm^3, and 30mm^3.

In light of the complex navigations and physical constraints, this should make an interesting intermediate design project for students. In my case, I first made a huge model using 48 polydron squares and adhesive tape before sketching them in Fusion 360. With parametric design, you could easily change its dimensions. Have fun!


3D printing settings






.1 to .2mm



Please use flexible TPU filament.

Cycle around in the cubic world!

3D printer file information

  • 3D design format: STL Folder details Close
    • FlexibleCube20.stl
    • FlexibleCube25.stl
    • FlexibleCube30.stl

    Learn more about the formats

  • Publication date: 2018-02-08 at 10:05




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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