support ring to fix and plug ptfe tube if filament 1 75mm is not in use —

Founded support ring to fix and plug ptfe tube if filament 1 75mm is not in use models & stl files for printing
Bottle Caps
hunterjude1
Skull Bookend
BigLazyB
Overwatch sign
RealBadDad
Yoga Tree Remix
Jessopjj
Arc Gimbal  5 axis
Print Hero
BBQ Wheel
surfalex2000
Britupus
WhoIsNobel