This is a simple filament drybox. It's made from a 22l SAMLA box from IKEA and can hold up to about 5 spools of filament.

It has a holder for a hygrometer to keep track of the temperature and humidity inside the box. The box is sealed with some “Tesa Moll”, but I think any tape for window sealing will do. I put in 1 kg of silicagel and even after a year the hygrometer displays 10% RH, which is the lowest value it can display, so It could be even lower. The spools sit on m8 threaded rods.

The clips for closing the box are designed by Wookbert (thank you very much <3) and you can download the STL files on thingiverse by clicking the link below:

[https://www.thingiverse.com/thing:2110134](https://www.thingiverse.com/thing:2110134)

List for non printable parts:

2x: m8 threaded rod (about 335mm long)

3x: m3*5 screw (screwed into the plastic of the hygrometer mount)

8x: m3*10 screws and nuts (for holding the “rod mount” in place)

1x: Hygrometer