Filament Dry Box

This is the latest version of my filament dry box. It&#39;s made using a Rubbermaid 21-cup (or 22-cup?) container made for keeping cereal and pasta in bulk. This container also happens to be the exact size needed for storing 1 kg filament spools. I&#39;ve been using different versions of this setup for a few years now and it just works great for keeping filament dry. What you need aside from the printed parts:Rubbermaid 21-cup container (p/n 1776473) available on Amazon (here) and some Walmart (here) stores for about $20 or less in the US.Four (4) small bearings (type R4) available at Amazon for about $15 for 10 bearings (here).45 mm Humidity Sensor available at, you guessed it, Amazon (<a target="_blank" href="https://www.amazon.com/Hygrometer-Thermometer-Humidity-Greenhouse-Fahrenheit/dp/B0CXHV22GD/ref=sr_1_16?crid=2VKOF6WMD58Z1&dib=eyJ2IjoiMSJ9.gKiDlwIf_yKaoU8l0aCfhwPwskyFTG4Jr1L5EZ0KO-eadUaEtYDbQT3HtZJoZcGvgjN4DwWmlpg7cZUZjIua5c3kAk9xKNevvtjUwznWsCcaRX26Ab-qN-bg1Jq1RAQ1MNPxWOx9yY4C