These cases were created during my attempt to dry my rolls of filament in a large storage container.  

I was inspired by the simple cases from humebeam. Not only did they fit perfectly into my Bambu Lab AMS, but their print tolerances were incredible, resulting in smoothly sliding doors. While I may not have achieved the same level of seamless sliding as humebeam did, these long trays are designed to sit beneath an upright filament roll in a large storage container.

For my next version, I created a case that fits entirely beneath a roll of filament in the container, maximising the amount of desiccant used (and now featuring a hygrometer). However, I still use the original cases because they have a low enough profile to fit inside the box without hitting the ends. They also hold a significant amount of desiccant.

You can download it on Makerworld