qev gun help?

Cannons powered by pneumatic pressure (compressed gas) using a valve or other release.
nicholasht
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well I've started to make my air gun with a qev valve, but i don't know how to join all the materials together. i need to know how to join copper piping onto a brass fitting. do i weld it on or solder it on or something else? also i'm gluing an o ring onto the barrel where the piston pushes against and was wondering what glue to use cos its not sticking at the moment and i use epoxy glue but maybe not enough? thank you.
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jackssmirkingrevenge
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Compression fittings are the standard solution, but with proper epoxy you have more options ;)
hectmarr wrote:You have to make many weapons, because this field is long and short life
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mark.f
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Brass to copper joints can be made using flux and plumbing solder. Ask somebody who knows how already to show you how to do it, and then practice on a few joints before building a gun.
nicholasht
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thank you very much
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