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Building a custom shaped Compressed air tank Answered

Hello, am looking into the possibility of building my own paintball markers, and wanted to do a custom way of using the air system, compared to most markers. I was thinking either a square shape, but after finding an article that was talking about water and gases tanks and why they are build cylindrical, i realized that maybe that might not be as easy or practical. another possible idea would be a flask shaped tank, but for the design am looking at it would need special commendations, none the less I wish to see if something like that could be possible.



10 months ago

Why don't you simply make a slip on shape to cover the regular proper pressure tank, so it looks like a flask..

A perfect job for a 3D printer !

Pressure vessels for air or gasses are a high safety risk. If not designed and built correctly they can explode with great damage and injury. Special shaped tanks may be cool, but getting yourself or others hurt is not cool.

In most US states, there are pressure vessel laws that require air tanks over 15 PSI and 6 inches diameter, must be built and tested to American Society of Mechanical Engineers Pressure Vessel design code. This design code is now about 24 inches thick in the paper version.

Special shape air tanks are possible, but not for the inexperienced. Be safe.


I'd not recommend fabricating your own unless you are an excellent welder.

It all depends on the pressure but considering just the levels of a basic paintball system....
No matter where you look, all high pressure tanks come down to a very basic shape - the typical cylinder.
Once you have edges and flat reas the forces acting on them are so high that safety becomes a really issue.