Impossible marbles circuit

Discover your skills with this impossible marbles circuit.

01/11/22-- redesigned for a better experience and something more "possible". but we leave the previous models for the more adventurous as well.

You will need marbles with a diameter of 5-6-7 mm. The smaller the marbles, the easier it will be to stay on the track. If you have steel balls it works better as they have more mass.
Print without supports.

Three circuit heights

Easy
Medium
Hard.

The photographs correspond to the Medium version, the other versions have less inclination the easy, and more inclination the hard.

Enjoy