Filament Dry Box 4x (IKEA Samla 22L)

I tried many different approaches from building my own (expensive) filament box with aluminum extrusions and sealed acrylic glass to single Rubbermaid boxes with humidity sensor and Silca gel. This is now the one I settled for and I am quite happy with the cost / performance. It is a modular approach to creating an affordable DryBox that fits four 1kg Prusament Spools but also larger (2+kg) or slimmer (samples, etc…) ones. Minimum Configuration:1× IKEA Samla 22L Box with Lid2× 8mm Thre