Piston Help

[Sergeant Dotson]

I don't think I understand how a piston cannon works and would like some help. I've seen the pistons before but never could understand them. Any help would be nice, so as long as it is helpful.

-Sergeant Dotson 8)

[jrrdw]

In detail what don't you understand?

[Sergeant Dotson]

I don't see how the piston allows air to pass into the barrel when air is exposed by a ball valve, etc.

[jrrdw]

When the ball valve is opened it lets the air behind the piston out, the piston follows the air escaping and the stored air escapes though the barrel. Thats a very basic discription. Search the SpudWiki to fill in the details.

[SpudFarm]

http://www.spudfiles.com/forums/piston- ... t8157.html

[pat123]

the blow valve only lets out enough air for the piston to slide back, allowing air to go around it into the barrel

[Sergeant Dotson]

But how does the air go around the piston if it is airtight?

[sniper hero]

did you already seen this: http://www.spudfiles.com/forums/piston- ... t8157.html

it's very clear done
so just copy paste the link and see if you understand it
if you have still questions: ask

Edit: I see that in the time I wrote this reply someone already posted this link

[SpudFarm]

when you first get it you feel dumb that you don't understanded it before

[Sergeant Dotson]

Yea, I think I am starting to get it and yes, I do feel dumb....

[jrrdw]

Once the piston moves back, the air in your storage chamber has a clear path out the barrel.

The Wiki is your friend grasshopper.

[SpudFarm]

pretty easy he?

[Sergeant Dotson]

Yea, a lot easier than I thought. I guess I know what my next project is now, if you know what I mean. :angryfire:

[Sergeant Dotson]

Sorry for double-posting but, if the air enters the chamber in front of the pison, wouldn't it push the piston back?

[Hubb]

You would need a spring to keep the piston from moving back, assuming your putting air into the chamber.