Sunlu Spool Keychain Rack

Just a simple 2-tier key chain rack I have created that adapts to empty Sunlu 1kG spools. By using 2 parts of the “middle section” This can be transformed into a 3-tier display as well. This was modeled after the newer spools with a smaller center diameter but after discovering this I quickly mad an adapter for the older spools to making adapting to each one easier. The storage bins are a remix of https://makerworld.com/en/models/653686-sunlu-spool-storage-container-new-reusable-spools#profileId-580534. I added a 2-part pin to this for stronger hinging so the bins don't pop out. Also there is a knob that can be added for higher functionality. All parts were printed with Sunlu and Flashforge PLA Key chain rack parts:printed at .2 layer height, 4 walls, 10% cubic infill, 4 top and bottom layers with slower speeds around 150 for outer walls. Storage bins:printed at .2 layer height, 2-3 walls, 10% cubic infill, 50mm/s outer walls. The knob has not been tested but should work as there i