A filament spool holder with 3 types that can also be used as a moisture-proof case.
*I have released a model that can be made into a bearing by changing only the shaft and the bearing outer.シャフトとベアリングアウターのみの変更でベアリング化できるモデルを公開しました。
https://www.thingiverse.com/thing:5358898

・Thermo-hygrometer
https://www.amazon.co.jp/dp/B089Q4BYD9/
・Case 5.5L 29cm×22.5cm×12cm
Anything about 29 cm x 22.5 cm x 12 cm is OK！
https://jp.daisonet.com/products/4549131571479?_pos=2&_sid=b5a7353a8&_ss=r