AMS Cardboard Spool Adapter for Polymaker (newer)

This is a simple lightweight spool adapter for Polymaker cardboard spools, specifically the newer kind that has the holes spaced 120 degrees apart. It slots into the holes to provide a bit of a better fit. I've got a few variations depending on your preferences, some that use all 6 holes around the rim vs others that just use 3, flat rims vs rounded, and a couple that have passthrough holes for the filament. They print pretty quickly and use less than 10g of filament

Edit: Added a 7th plate with a redesigned rim for the smaller-hole variety of Polymaker spool

Design by keronian on MakerWorld (license: CC0).