I created this spool tower to place into DIY dry boxes. This tower allows you to place silica gel boxes at the bottom of your dry box. The tower can be put together using #6 x ¾ wood screws. You also need two standard ball bearings to place into the roller for best results. I included another 3mf with Spool adapters for standard elegoo filament spools; you need these adapters for spools with large inner diameters. Feel free to remix these adapters to fit other brand spools.