I decided to make my own adapter so I could fill my stand up paddle board from a compressor. While at it, I decided to make a version that included a gauge.
My SUP has a Bravo brand valve but this is likely to work on recent vintage Halkey-Roberts vales as well.
In addition to what you print, you'll need some or all of these:
3) A rubber gasket
I found the black gaskets pictured at my local hardware store in the plumbing section. They were labeled "3/4 inch". Big help right? This is the inside diameter. These may be available in a watersports shop as replacements.
I included an stl file for a possible gasket if you have some flex filament. I had some semi-flex around but wasn't pleased with the result. May try NinjaFlex when I get some. The Gasket is untested.
Got a small roll of NinjaFlex. Had to make the gasket a bit thicker than the one posted and it works great. Very impressed with Ninjaflex. I've added the thicker part but I suspect that the thickness requirement may vary. I suggest printing and testing, if it needs a change, just scale the Z in your slicer as needed,
Should print with 4 or 5 perimiters. This is very sensitive to layer adhesion due to the strength required for the locking tabs. Don't ask how I know :-)
I ended up printing in Nylon and it worked great. I used Taulman 910. Depending on your bed adhesion, you may want to use a brim. Print as oriented in the stl.