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high velocity burst disc 6mm pneumatic

Built a pneumatic cannon? Then post it here! This section is for completed, finished cannons that you have built. Please include pictures and information.
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Unread postAuthor: joannaardway » Wed Sep 12, 2007 5:19 pm

@JSR: I still prefer the idea of a a shotgun to an AMR.

I suppose it varies, but take a look at Ragnarok's HEAL V1.1.
If I had to compare that to any one kind of firearm in appearance, I'd choose a shotgun of some sort, partly because the chamber looks almost as if it could be an underbarrel magazine.
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Novacastrian: How about use whatever the heck you can get your hands on?
frankrede: Well then I guess it won't matter when you decide to drink bleach because your out of kool-aid.
...I'm sorry, but that made my year.
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Unread postAuthor: Fnord » Wed Sep 12, 2007 5:43 pm

I suppose it varies, but take a look at Ragnarok's HEAL V1.1.

I took a look, and I want to see more :)
Is it posted on spudfiles? I searched for the name but couldn't find any matching topics.
Edit: just saw the other pics of it on photobucket. Also learned what to do in case of a crab battle.
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Last edited by Fnord on Wed Sep 12, 2007 5:53 pm, edited 1 time in total.
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Unread postAuthor: DYI » Wed Sep 12, 2007 5:46 pm

I'm pretty sure that Ragnarok only posts on UKSGC.

That launcher looks really sweet though. What kind of pressure does he use in it?
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Unread postAuthor: jackssmirkingrevenge » Wed Sep 12, 2007 10:22 pm

hehe that looks like copperhead prime on acid :D
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Unread postAuthor: joannaardway » Thu Sep 13, 2007 9:27 am

jackssmirkingrevenge wrote:hehe that looks like copperhead prime on acid :D

Not sure exactly whether that's a good thing, but it sounds impressive nonetheless.

@DYI: If he gets his act together, he can use slightly over 300 psi.

@Fnord: Take note of that Crab battle advice - it could be crucial to your survival.
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Unread postAuthor: jackssmirkingrevenge » Thu Sep 13, 2007 11:16 pm

joannaardway wrote:Not sure exactly whether that's a good thing, but it sounds impressive nonetheless.


I'm not sure either hehe

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Unread postAuthor: windshrike » Mon Sep 17, 2007 6:06 pm

JSR: Is that just a regular threaded schrader valve? Not high pressure rated or anything?

I'm going off to build a multi-shot version of this with a hammer valve to trigger the pilot. Wish me luck!!!
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Unread postAuthor: jackssmirkingrevenge » Tue Sep 18, 2007 2:15 am

It's a regular schrader from a bike inner tube, not threaded but set in the epoxy.

a multi-shot version of this with a hammer valve to trigger the pilot


pilot? this is a burst disk launcher ;)
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Unread postAuthor: FeLeX » Tue Sep 18, 2007 8:10 am

You can make a pilot of some sort for a trigger cannon. Cant you?
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Unread postAuthor: DYI » Tue Sep 18, 2007 7:34 pm

In a pressure differential type triggered burst disk cannon, the small volume of air in between the two disks is often referred to as the pilot.

I have to agree though, that a hammer valve gun is very different from a burst disk gun.

On a side note, I will give a cookie to anyone who can make a semi-auto pneumatic burst disk cannon.
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Unread postAuthor: windshrike » Tue Sep 18, 2007 7:39 pm

Hammer hits schrader, releasing air in pilot, moving piston backwards, releasing air in chamber to hit burst disk, break it, and propel projectile.
Got it, JSR? :wink:

Or, more likely, I won't use a disk at all. But I meant the basic high pressure 6mm coaxial idea I would copy.

DYI: Free cookie please?
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Unread postAuthor: DYI » Tue Sep 18, 2007 7:46 pm

No cookies for anyone until I see an real life, honest-to-God semi-auto burst disk launcher that actually works. After that, if you're able to revive me, I'll give you a cookie.

Releasing air through a slow valve so that it hits a burst disk doesn't do much, because the disk blows out before the valve is fully open. The calculations have been done to prove it (by Jimmy, I think).
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Unread postAuthor: jackssmirkingrevenge » Wed Sep 19, 2007 5:10 am

I like cookies :D

Windshrike, a burst disk ruptures on firing. great for single shot performance but very inconvenient for a multi-shot design, so a piston valve is a better idea.

The only real way of having bust disk semi-auto is a cartridge, I came up with this.
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Unread postAuthor: windshrike » Wed Sep 19, 2007 4:35 pm

Oh. My. God. Please read my posts in this thread again please.
Did I not say that I would probably NOT be using a burst disk? Yes I did.

Or, more likely, I won't use a disk at all. But I meant the basic high pressure 6mm coaxial idea I would copy.
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Unread postAuthor: Antonio » Tue Jan 29, 2008 2:47 pm

jackssmirkingrevenge wrote:Windshrike, a burst disk ruptures on firing. great for single shot performance but very inconvenient for a multi-shot design, so a piston valve is a better idea.

The only real way of having bust disk semi-auto is a cartridge


Wow thats some really fast shooting there! So a burst disk hybrid eh. Reminds me of the tippmann C3. It also has a type of burst disk but then with a cylinder and spring. Maybe this could be the ultimate project lol. I dont have much with explosives as I noticed that air is much more controllable and safe. But these speeds are worth giving it a try.
Tippmann C3 animation:
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