Print the cap (Top.stl) with the holes facing up to avoid any unnecessary problems

Designed for 24cm chopsticks with 8mm diameter. If your chopsticks are taller you can easily scale the height, especially on the cap, but keep in mind that they won't sit properly if you don't scale up both pieces.

I'll leave some scaling percentages to apply to both pieces only on the height so that you can fit longer/shorter chopsticks:

21cm: 87.5% 23cm: 96% 24cm: 100% 25cm: 105%

Rafts are extremely recommended to avoid knocking over the main body (Bottom.stl).

If you printer has any kind of problems printing tall objects you could print Bottom.stl flat, but the visual effect won't be as pleasing. Keep in mind that printing flat will also increase strength.

The fit of the parts is made so that they're extremely easy to pull apart. If you want more friction you could add a small piece of tape or other adhesive on the inside of the cap (Top.stl).