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Is this design possible?

Post questions and info about pneumatic (compressed gas) powered cannons here. This includes discussion about valves, pipe types, compressors, alternate gas setups, and anything else relevant.
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Is this gonna work or am I dumb?

This is dumb why are you even asking...
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It may work, cut and burn yourself a few times to work it out...
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Yeah, this guy may be on to somthing...
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Yeah, this guy may be on to somthing...
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Total votes : 2
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Is this design possible?

Unread postAuthor: Dr.Doom » Thu Oct 19, 2006 10:06 am

Well I was thinking last night of Pnematic guns and compactability, would a design in which the air tank was a sheath around the barrel be possible? say if a coil was wrapped around saving space and keeping power. kinda like this:
Image
And if not this, maybe an all metal with the tank actually welded to the barrel with a tube connecting externally to the barrel.
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Unread postAuthor: POS » Thu Oct 19, 2006 12:09 pm

I dont think this can be a powerfull gun. The chamber is way to small fot the barrel, and way to long and thin. Not a good airflow I guess.

Why not make a Coaxal gun instead ?

BTW, I like the drawing.
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Unread postAuthor: Hotwired » Thu Oct 19, 2006 12:12 pm

Thats a long way for the air to go to just get to the valve...

Not a very efficient design methinks. It'll work of course but there are better chamber designs.
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Unread postAuthor: Dr.Doom » Thu Oct 19, 2006 12:26 pm

POS wrote:I dont think this can be a powerfull gun. The chamber is way to small fot the barrel, and way to long and thin. Not a good airflow I guess.

Why not make a Coaxal gun instead ?

BTW, I like the drawing.

I like my design but the more I think about it the more I think that the pressure won't release quick enough, kind of like a balloon slowly deflating instead of poping.

I'm kinda new to Pneumatics so I'm not really sure what a coaxal gun is...
I'm just trying to think of the most compact design I can possibly create without major loss of power.

while I'm at it, what exactly does the sprinkler do on pneumatics?
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Unread postAuthor: POS » Thu Oct 19, 2006 1:37 pm

The sprinkler valve is a valve that opens very quickly. It gets triggered by a blowgun, a ball valve or some by electricity.

They are easy to mount and use, although you should mod them. I prefere a piston valve. Not so easy to make, but cheap, en best performance.

A coax pneumatic gun, is a gun with wich the cmaber is constructed arount the barrel. The barrel goes trough the chamber. Look at spudwikifor more details. I learned a lot from that there.

This is a coaxal gun :
Image
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Unread postAuthor: Dr.Doom » Thu Oct 19, 2006 1:47 pm

Thanks, yeah shortly after posting I read the wiki and now I feel dumb, prolly shoulda read that first...
So basically a coaxal is what I was going for there, hmm... I'll do some research.
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Unread postAuthor: POS » Thu Oct 19, 2006 2:00 pm

May I recommand a over/under as a first gun. I myself made one out of galve steal. The design however wasn't that good, so I made a bether one. You can find it in the pneumatic showoff section, titled MB2. I have made a dual chamber there. Looks pretty nice. It fires like hell at 130 psi, and I am looking for a pump to get it up to 250 psi.

Right now it shoots 25 mm marbles trough a 30 mm wooden plate at a distance of 40 yards.
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Unread postAuthor: Dr.Doom » Thu Oct 19, 2006 2:19 pm

Yeah further thought makes me think, I should think simple for my first pneumatic, I did the same thing with my first combustion, I wanted to go all out, until I started building it then realizing, I'd never done this before, so I simplified and it turned out great (for a first at least)
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Unread postAuthor: frankrede » Thu Oct 19, 2006 7:59 pm

hey man the gun looks good but it wouldn't work well.
Heres a site that has some plans for potato guns of the pneumatic variety.
members.aol.com/sph911
Welcome to spudfiles:D
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Unread postAuthor: POS » Fri Oct 20, 2006 5:57 am

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