Cartboard ELEGOO filament roll - protection ring

thingiverse

(the one with 'bigger' in the name doesn't come off. I will make one scaled one in between these 2 later)The cartboard filament holders are better for the environment but even sealed off edges do not prevent a decent amount of dust to come off from the cartboard material to come off and sit on the holder, eventually dropping onto your buildplate and lose adhesion.The design has ugly polygons but it is a good fit. Openings made as small as possible for less wobbling but big enough to fit over the filament holders edge stopper.It is best to leave them on until your roll is completely finished, then wash them or something. So, making a few will be a good addition to the 3D printer!