Stackable Filament Shelves.

UPDATE: I added a new version of shelf (V6) with a center beam to help support the new drawers that can be made. Along with two styles of drawers, a half size and full size. I have a set of three shelves 6 high each so I can store 18 spools. I have not had any problems with durability, they are solid.Design ConceptThis model serves as a compact and efficient filament storage solution. It aims to provide a neat way to organize and store 3D printer filaments.UseThe holder is designed to store filament spools neatly, allowing easy access for swapping or selecting different filaments.Printing SuggestionsPrint with a sturdy material like PLA+, PETG or ABS to ensure strength and durability. A moderate infill of 20-30% is recommended.Assembly InstructionsThe holder is a straightforward design that may require minimal assembly to fit multiple units or stack them as shown in the image. The heat-insert nut holes are placed in the print for ease of installation. Install the heat-inserts with a soldering iron.The picture that shows 6 shelves, you might notice that the top right shelf is a little different and was one of the first prints using a different connection type. I just used it for a top shelf to not waste the print.