About this 3D model
I know there is an offical file, but this one is more cost-effective. Most importantly, if the cardboard is not straight, the ring adapt to it! It seems the spool's diameter may vary, so I made a few with different diameters. Maybe start with 200mm one, then choose other sizes if required. I can print when the AMS lid resting on top of the lid closure clips with 200mm version. I don't think I can close lid as well.