
Reduction for bottle cap
thingiverse
OK, so I bought a titanium watter bottle from AliExpress and I wanted to use it with my hydration system, which has standart european PET cap.This is the result - both screws are rather eyballed to fit using the thread library under GPL.I still need to get some silicone o-rings as seals and of course make everything food safe (perhaps some resin coating, which could affect the size).
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