Impossible pass through triple helix fidget

Impossible Passthrough Triple Helix Fidget

Description:
This Impossible Passthrough Triple Helix Fidget is a kinetic sculpture designed to print cleanly and reliably with no supports required. Its geometry creates an intriguing visual effect — a priple helix that appears to contain an impossible passthrough channel.

The triple helix itself is a static structure. Inside it, a continuous internal channel forms an impossible passthrough path where the inner shapes slide through the helix, creating the illusion that they pass through solid geometry while moving smoothly along the spiral.

Features:

• Triple helix impossible geometry
• spiral sliding mechanism
• Four interchangeable inner shapes:
  • Sphere
  • Cone
  • Cylinder
  • Chamfered cylinder
• Designed for clean slicing and reliable printing

Printing:

• Print in place
• No supports required
• Can be printed in a single color or with multi-color setups for heightened visual effect
• Let the build plate cool before removing

Dimensions:
40x40x150mm

Also check out the Gyro Fidget Spinner (4 Nested Rings):
If you like this design, you may also enjoy the Gyro Fidget Spinner featuring four fully nested rings printed as a single piece. It takes the impossible passthrough concept into a more mechanical, gyroscopic direction, allowing each ring to rotate freely in all axes. The result is a smooth, hypnotic motion with a clean sci-fi aesthetic. Print both models to compare how rotational freedom and structure influence the overall feel and interaction.