17d
Cycling Weekly on MSNHow to fix a puncture and patch a bicycle inner tubeIf you have a Presta valve, unscrew the top nut and press in to fully deflate the tube. If you have a Schrader valve, simply press the pin in the valve to release remaining air. Step 3 ...
A Maglite was chosen due to its high durability, and easy access to the internals. A schrader valve sticks out of the battery cap, which allows the gun to be charged using a standard fitting.
Charging the cannon is done via a Schrader valve, as you might find on a bike’s inner tube, and firing is achieved via a ball valve. Of course, if you build such an air cannon yourself ...
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