Logarithmic spiral SVG
A gentler logarithmic spiral, growing by a fifth every quarter turn, with a line that is thin at the centre and thick at the rim: the shape of a nautilus shell.
Free for personal and commercial use, no sign-up. What you can do with it.
What is in the file
| Size | 84 × 100 mm (3.3 × 3.94 in), scales to any size |
|---|---|
| Pieces | One piece: it holds together when cut |
| Outlines to cut | 1 outline |
| Cut length | 949 mm at this size |
| Narrowest part | 1.3 mm at this size |
| Nodes | 117 curve and line segments |
Measured from the file. PNG: 1,688 × 2,000 pixels, transparent. About the three file types.
How fine is it at your size?
Scaling a design scales its finest detail too. Here is this one at seven sizes, from 1 to 12 inches on its longer side, with how many copies fit a 12 × 12 inch sheet or mat.
| Size, width × height | Narrowest part | Cut length | Fit on a 12 in sheet | Rule of thumb |
|---|---|---|---|---|
| 0.84 × 1 in (21 × 25 mm) | 0.33 mm | 241 mm | 110 | Too fine for most machines |
| 1.68 × 2 in (43 × 51 mm) | 0.66 mm | 482 mm | 30 | Fine detail: vinyl and paper only, weed with care |
| 2.51 × 3 in (64 × 76 mm) | 0.99 mm | 723 mm | 12 | Fine detail: vinyl and paper only, weed with care |
| 3.35 × 4 in (85 × 102 mm) | 1.3 mm | 964 mm | 6 | Vinyl, card and thin sheet |
| 5.03 × 6 in (128 × 152 mm) | 2 mm | 1,446 mm | 2 | Vinyl, card and thin sheet |
| 6.7 × 8 in (170 × 203 mm) | 2.6 mm | 1,928 mm | 1 | Vinyl, card and thin sheet |
| 10.06 × 12 in (255 × 305 mm) | 4 mm | 2,893 mm | 1 | Any material, including 3 mm wood and acrylic |
The narrowest part is the finest detail in the pattern. Below about half a millimetre it is too small to cut and may fill in when printed. How to open the file in Cricut, Silhouette and laser software.
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