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
Percentage Stud Button
Tom Anderson (The ReaL NEO)
DredNot
loganvosburgh
Friesian
2winners
Filament guide
GerryPB