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Bottle Cap, Gatorade Bottle, Aquarium Vacuum, Dodecahedron

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

Bottle Cap, Gatorade Bottle, Aquarium Vacuum, Dodecahedron

Inner Diameter 38 mm, double thread, thread pitch 7.2 mm

Before recycling those sport drink bottles (e.g., Gatorade, Vitamin Water, etc.), why not get some math and art or even something useful out of the bottles? So I took a Gaorade bottle cap, dissected it, and did some measurement—diameters, thread pitch, etc. After a few iterations, I got a functional bottle cap. It is a nice entry-level design project, playing with a few numbers to adjust the fit.

Then, I tinkered with the basic design and made a few interesting caps. With a spout, we can convert a bottle into a working aquarium vacuum using a 0.5-in tube, a siphon that can be used to clean the gravel at the bottom.

Further, I made a dodecahedron and put a few caps around it. The one with 12 caps is hard to print, requiring extensive support. The one with 6 caps can be printed without any support. Well, as mentioned earlier, it is just a way to play with the bottles. Have fun!

####Gatorade and Vitamin Water are trademarks of their respective owner. The cap may work as well on other soft drink bottles. To make it water-tight, please consider using some plumbing tape.

To Print

A resolution of 0.2mm works well for me. A higher resolution should also work.

3D printer file information

  • 3D design format: STL Folder details Close
    • Cap_Only.stl
    • Cap_Spout_A_half_in_18mm.stl
    • Cap_Spout_B_half_in_18mm.stl
    • Cap_Spout_C_half_in_18mm.stl
    • Dodeca_12_Caps.stl
    • Dodeca_6_Caps.stl

    Learn more about the formats

  • Publication date: 2019-08-12 at 17:56
    Published to Thingiverse on: 2019-08-12 at 17:40





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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