Dot Vortex Ring Pattern
A donut-shaped swirl of dots built on a Fibonacci spiral inside a custom ring boundary — circles in the inner band morphing into rounded triangles at the outer edge.
About this pattern
Here the Fibonacci spiral is clipped by a custom ring boundary, turning the usual sunflower disc into a swirling donut. Dots shrink to fine points along both the inner and outer rims of the band, so the ring appears to rotate — a vortex effect created entirely by the size gradient, with every element sitting still.
Look closely at the outer band and the circles are no longer circles: a shape morph transforms them into rounded triangles as they approach the rim, adding a directional, almost gear-like bite to the silhouette. Both the morph and the size falloff are independent controllers you can retarget or disable.
The compact 200 × 200 mm canvas and hefty 50 mm extrusion depth suggest what this preset was made for: a chunky machined or 3D-printed part — a speaker ring, a tweeter surround, a decorative bezel — rather than a flat sheet. Scale the canvas up and it serves equally well as a circular wall piece.
Pattern parameters
| Array type | Fibonacci / phyllotaxis (137.5°) |
| Boundary | Custom ring (donut) |
| Element shape | Circle morphing to rounded triangle |
| Canvas | 200 × 200 mm |
| Extrusion thickness | 50 mm (STEP export) |
Every value above is a live parameter — nothing is baked. Typical uses: Tweeter surrounds, circular vents, 3D-printed bezels, turntable mats, logo medallions.
How to use this template
- Open the free Speaker Grille Pattern Generator — it runs in the browser, no install or sign-up.
- Rebuild the look with the parameters listed above, or open Marketplace inside the app and import preset #050 directly (Pro).
- Make it yours — adjust spacing, size, gradients, or swap the element shape — then export as SVG, DXF, or STEP for print, laser cutting, or CAD.
Start designing with this pattern
Free to use, no sign-up, runs in your browser. Every parameter stays editable.
Open the Speaker Grille Pattern Generator — Free
