Polymaker AMS Cardboard Spool Adapter Ring

!! AMS Cardboard spool adapter which sits perfectly on the spools and does not slip off during drying !!Model Type: AMS adapter ring designed specifically for cardboard Polymaker/Polyterra filament spoolsWhy cardboard Polymaker spools need an adapter:Cardboard spools shed dust and fibers that can contaminate AMS internalsBare cardboard has inconsistent friction, leading to feed errors and slippingDiameter tolerances vary after drying due to moisture loss and deformationAn adapter ring stabilizes rotation, protects the AMS rollers, and ensures reliable filament feedingCore problem addressed:Existing rings tend to loosen or slip after spool dryingMany designs only fit either wet or fully dried spools, not bothDesign solution:Precisely matched to Polymaker spool geometryMaintains a secure press-fit even when the spool is not fully driedDoes not slip after full drying and shrinkageKey feature:One-fit-for-all state: works reliably before drying, during drying, and after dryingVersions inclu