I edited this box in Tinkercad. I added the dividers, thickened the rib material at the latch fastener holes, and added the lid's flap with its hinges and magnet closures. I also included a second version of the lower piece that is 19mm shorter. This remix fits jobber HSS drill bit sizes 40, 30, 27, 21, 16, 10, 5, D & F in the base and sorted hardware in the lid. 4 ea. 4x2mm NIB disc magnets recommended to prevent lid from dumping contents. I used 3mm rod epoxied into the hinge and latch areas (dont fuse the hinges, I glued each pin to one ear only). This fit in Cura for the Ender 3 Pro with adheson set to none. The color change was Cura setting: Extensions>Post Processing>Modify G-Code>Add a Script>Filament Change, add one of these for each layer picked for filament change as desired. My printer under-extrudes in the first minute or so after resuming. My remedy was babystep z -0.1mm and 120% flow tuning at each resuming. I also used first layer horizontal expansion -0.2mm and 50C bed temp after the first layer. Build plate was the Creality glass flipped over, glass bead blasted and PVA brush applied. Creality main board 4.2,7 mod used. Expect a full 3-day weekend for printing. The complete box weighs exactly 500g of filament. The dividers are 0.8mm thick and print as 2 solid wall thicknesses without infill.