This 3D printable model recreates a famous mechanical paradox that tricks the eye and defies intuition.
A simple double cone placed inside a triangular frame appears to roll uphill, all by itself!
Of course, it’s not magic: the secret lies in the cleverly designed geometry.
It’s a great example of how visual perception can be deceived by smart engineering.

A fun, educational project perfect for teaching physics concepts, visual illusions, or simply amazing your friends!

The triangle frame is foldable, making it easy to store when not in use.
You can scale the model to your preferred size in your slicer and print it in any color combination you like!