You may use this as addon for the flower pinwheel https://www.thingiverse.com/thing:4216400

The geat Helix design on the first image is https://www.thingiverse.com/thing:2799131

Press a 608 ball bearing into the center part. Print three of the leaves and glue them to the according deepenings in the certer part.

Update 04/11/2025: Added a stl file for a leaf with enforced petiole.

The inner diameter of a 608 ball bearing is 8mm.

Other

Hypercube Evolution

No

No

0.2mm

20%

I could print the leafs without suoort. If you get in trouble add a light Zig-Zag suppprt for overhangs above 55°

If you get stringing issues for PET-G like me, print the leaves separately.

To avoid warping you may add bed adhesion in form of about 10 lines of brim.