Smooth Ring

These are STL files for 3D printing to make smooth, fashionable rings. They are measured in the US ring size and are most comfortably printed with TPU filament.

How to measure:
Wrap a string around your finger, measure it in millimeters, then divide by π to find the diameter (use this for the chart). then use this chart to find ring size to use. Round to the nearest measurement or round up.

Chart:
US: MM:
3 14.1
3½ 14.5
4 14.9
4½ 15.3
5 15.7
5½ 16.1
6 16.45
6½ 16.9
7 17.3
7½ 17.7
8 18.2
8½ 18.6
9 19.0
9½ 19.4
10 19.8
10½ 20.2
11 20.6
11½ 21.0
12 21.4
12½ 21.8
13 22.2
13½ 22.6
14 23
14½ 23.4
15 23.8

Troubleshooting tips with TPU:
If the layers keep splitting, try printing with a slower speed, reduce fan speed, and or when the print is