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Inflation bag adapter for packraft boston valve
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An inflation bag adapter that fits over certain boston valves for inflatable watercrafts.
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Model information
- Source
- Printables
- Category
- Outdoor Sports
- License
- Creative Commons — Attribution
I forked this design from the Top-up nozzle adapter shared by GabC, it allows to turn any airtight-bag into an inflation bag compatible with the boston valves sold by DIY packraft.
Simply cut a 20mm hole into the bag (with reinforcement if needed):
As mentioned by the original author:
Unfortunately not all valve manufacturers make their threads exactly the same, so while it is very close to 7/8-14 UNF, it is incompatible. Thread pitch is exactly the same but diameter is off by almost 2mm.
No support needed, print them flat.