Soft Serve Generator

Nozzle

Star points

6

Nozzle size

14 mm

Swirl

Turns

4

revolutions of the coil Pitch

11 mm

rise per turn — past the nozzle size it opens into a corkscrew

Rheology

Yield stress

75%

how firm it stands — low slumps under its own weight and the coils merge Shear-thinning

60%

shape retention out of the nozzle — low relaxes and rounds the ridges (die swell) Thixotropy

30%

rebuild over time — high lets the base set firm while the fresh top still droops

Flavor

Color only — it never changes the shape. GLB and USDZ carry it; STL has nowhere to put color, so it downloads the same file for every flavor.

Size

Scales the downloaded model, not the recipe — the swirl keeps exactly the shape above, it just comes out smaller. Print services quote on volume, which goes as the cube of this: at ½ the swirl costs about an eighth as much.

Download

STL for slicing and printing. GLB for everything else — Blender, Android, three.js, most online viewers. USDZ opens straight into AR Quick Look on iPhone/iPad.

Millimeter units — it prints at the size shown. Watertight and manifold, solid throughout, and it stands on a flat base, so it needs no brim; open corkscrews will want supports. Below about ⅓ the star ridges get shallow enough that sintered metal will soften them.