For Bambu Lab refilling filament D200

The main goal was:fast printingless thread,nothing extra,simplicity,less parts_versatility.Material - PLAPrint one part twice.Remove the inner pin on one of them.Who wants an even smaller part -there is a project For Bambu Lab refilling filament D180I have developed a new and improved version of the coil.https://makerworld.com/en/models/1529424-reusable-spool-for-bambu-lab-refilling-filament#profileId-1603751