SpudFiles

Posted: **Sun Oct 30, 2011 5:41 pm**

My homemade scuba tank air cannon that i built myself. I build a new cannon now so pics come when it are finished.

Some facts: The tank i got from my dad. i shoot 60 meters with 1 bar. I don't know what pressure welds can withstand so I fill the tank with very little air. AND IT'S NOT TAPED ALL THE WAY,IT ARE FITTINGS THAT HOLDS EVERYTHING TOGHETER

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Posted: **Sun Oct 30, 2011 5:47 pm**

you should be able to put 500 psi in that.

Posted: **Sun Oct 30, 2011 5:53 pm**

Yes i know but i don't know how the welds can withstand

Posted: **Sun Oct 30, 2011 6:03 pm**

because its a steel tank designed for pressures up-to 6000psi and when you weld both the rod and the steel from the tank melt together people have plastic penguns made with pen and epoxy and they can withstand 400psi

Posted: **Sun Oct 30, 2011 6:07 pm**

Ohhhh thanks for the tip mate

Posted: **Sun Oct 30, 2011 7:05 pm**

Hydrostatic test it.

Posted: **Sun Oct 30, 2011 9:17 pm**

i agree with Technician1002 fill it with water and pressurize it to about as high as you can go and if it leaks, weld over it ;D

SpudFiles

Homemade scuba tank air cannon

Homemade scuba tank air cannon