A print-in-place mechanism, built as one continuous assembly. The spiral collapses through its own coil and rises again in a single motion, and it comes off the printer already moving — no assembly needed, it prints ready to spin.

That is harder than it sounds. Every rotating surface is separated by a clearance measured in fractions of a millimetre: wide enough that the layers never fuse during the build, tight enough that the finished spiral runs true with no play. Get it wrong by a hair and the cone either welds solid or rattles. This one is dialled in.

The design runs as an inner and an outer body, which is what makes the dual finishes possible: the two are printed in different colours and turn against one another through the coil.

Print-in-place assembly with no glue, no fasteners and no post-assembly
Engineered running clearances for a smooth, consistent rotation
PETG throughout, for impact resistance and strong layer adhesion
0.20 mm layer height across the full coil
Collapses flat and rises again in one movement
Pocket-scale, with no loose components

Specification

Material: PETG
Layer height: 0.20 mm
Build time: 1 hour 29 minutes
Mass: approximately 24 g

Built for

Occupying your hands while your attention is somewhere else
A desk object with genuine engineering behind it
Focus, and the quiet repetition that supports it
A gift that explains itself the moment it is picked up

Finishes

Dual finishes are named in the order they run through the coil, so the first colour listed is the first you see.

Fidgets

Infinity Cube

Spiral Cone Fidget