Simple, low filament cost adapter ring for Xingtong Zhi Lian (XTZL3D) aka ACTIVEME plastic spools to fit properly inside the Bambu Labs AMS. Has a tag on the ring to identify the brand the ring is for. It's a very snug fit on my spools and works perfectly. I've received a few Xingtong Zhi Lian spools and have two sizes: 185.5mm and 192mm and have made rings for both and included them as files in this project.
Outer-Diameter: 198mm
Inner-Diameter options: 185.5mm, 192mm