Airtight Filament PTFE Tube Cap 4 mm OD v2

Airtight Filament PTFE Tube Cap 4 mm OD v2

cults3d

This is an improved version of Bu66as's filament tube cap https://www.prusaprinters.org/prints/70444-petg-tube-cap-for-ptfe-4-mm-od I used the original model as a starting point and redesigned it with these improvements: Optional o-ring slot for better seal (¼inch OD, ⅛inch ID / 6.35mm, 3.175mm) spring based attachment loop which grabs on to the filament tube allow more filament to hang out of the tube

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