Tevo Tarantula Bowden Seal
thingiverse
Tevo Tarantula Bowden Seal This coupler holds an oring to seal the filament in a typical 4mm bowden and 1.75mm filament setup. The oring is a 1.5mm id x 1.8mm thick seal that can be found on ebay as a common rc helicopter part, with prices around $5 for ten pieces. To find these seals, search "Lynx Blade 180 CFX 10pc Silicone O-Ring Set ID 1.5mm ID 1.8mm W LX1506". There are two versions of this coupler: V1 and V2. V1 is a simpler design, but may not work with all pc4-m6 fittings. V2 has more parts and should work with any pc4-m6 fitting. This project is still in development stages; it's unclear if this will actually seal the filament properly, but so far it looks promising.
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