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Not gun connected pistons

Post about things you have launched or thought about launching. Also post about various materials used for building cannons. No posts about explosive projectiles!
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Unread postAuthor: TurboSuper » Sat Nov 08, 2008 6:06 pm

Very well then, the air hose will act as dead space between the output of your piston valve and the projectile.

I think I'm missing something here....got a diagram?
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Unread postAuthor: john bunsenburner » Sat Nov 08, 2008 6:12 pm

i have two ideas...eithe ri connect the pilot exaust and the air chamber to a ball valve, when i open that(it will be spring powered) and all the air comes out. Or i have a two tubes one as exaust for the pilot and one from chamber to gun. which of the two is better?
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Unread postAuthor: TurboSuper » Sat Nov 08, 2008 6:14 pm

I dunno, I don't see how either would reduce dead space.

If it were up to me, I'd put a ball valve before the air hose and a piston valve in your gun. That way you get the safety of keeping the air in the backpack till needed, and the reduction of dead space to almost nil.
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Unread postAuthor: john bunsenburner » Sat Nov 08, 2008 6:18 pm

the pressurized air would have to get to the gun some how tho...dead space still exists
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Unread postAuthor: TurboSuper » Sat Nov 08, 2008 6:19 pm

True, you'd need a CO2 tank or something that can maintain a costant output.

Anyways, the dead space won't completely make your cannon worthless, just increase the pressure a bit.
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Unread postAuthor: john bunsenburner » Sat Nov 08, 2008 6:21 pm

true, to what pressure should i increase?
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Diagram

Unread postAuthor: john bunsenburner » Sat Nov 08, 2008 6:41 pm

Ok i ahve an image for you people i hope it helps, this is my second idea, i am not quite sure how good it is. I hope it works
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gun idea 001.jpg
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Diagram

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