Quarter of a regular tetrahedron by Robin Houston
Four copies of this shape can be assembled into a regular tetrahedron. Yes, really.
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updated December 14, 2022
Description
PDFThe original model was made by Robin Houston.
I just converted it to STL. Looks like a tricky print!
Original file here:
https://sketchfab.com/3d-models/quarter-of-a-regular-tetrahedron-d5002aff25204863b2c609f82c9bdfb9
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Model origin
The author hasn't provided the model origin yet.
