Made this to improve filament protection from moisture. There is still a meter (or so) unrolled from the spool between my drybox (https://www.youmagine.com/designs/slim-anti-tangle-dual-spool-holder) and the hot end. And if it stays that way for weeks, you'll notice it when printing again. Also adapted the OpenSCAD template to the version 2019.05 customizer.