Reuleaux Tetrahedron Display Shape, Constant Width Geometric Form

Design preview. Rendered from the file, not a photo.
This model is not currently offered as a verified ready to buy print.
What it does
- A curved-face shape of constant width, so it looks the same from any side
- Rounded geometric form, so it stands out as a desk or shelf display piece
- Made to order in the USA after you place your order
- A clean geometric piece for math fans, teachers, or puzzle collectors
- Simple shape with no small parts, so it sits on a shelf as a display object
Math class never looked this good on a shelf. The Reuleaux tetrahedron is a curved geometric shape built from a constant width design, meaning it measures the same across no matter how you turn it. You can set it on a desk, a windowsill, or a bookshelf as a piece that sparks conversation.
This shape is a favorite among geometry fans because it looks simple at first glance but holds an unusual property. Its rounded faces curve inward in a way that flat shapes never do, giving it a look that stands apart from typical blocks or cubes.
It works well for teachers who want a hands-on model, students curious about geometry, or anyone who likes unusual shapes on display. Each piece is made to order in the USA after you place your order.
2.7k downloads in the maker community. That is interest in the design on the site it came from, not our sales.
What you get
- This design prints as one piece.
- Nothing else to print or buy for this to work.
What it is made of
Designs like this print well in PLA. Compare the materials.
Printed plastic is strong for its size, but it is not metal. We have not load tested this design, so we do not publish a weight rating. Keep it out of a hot car and away from open flame.
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Who made this design
Designed by JeremyBP. We did not draw it.
Shared under GNU GPL. See the original design