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| joannaardway |
 Posted: 09/12/2007 16:19 PM Post subject: |
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Brigadier General
Joined: 09 Oct 2006
Posts: 961
115.90 Spud Bux
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@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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| _Fnord |
| Posted: 09/12/2007 16:43 PM Post subject: |
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reenigne
Joined: 13 Feb 2007
Posts: 1257
1892.97 Spud Bux
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| Quote: | | 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.
Last edited by _Fnord on 09/12/2007 16:53 PM; edited 1 time in total |
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| DYI |
| Posted: 09/12/2007 16:46 PM Post subject: |
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Rear Brigadier
Joined: 07 Jul 2007
Posts: 2308
1164.60 Spud Bux
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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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| jackssmirkingrevenge |
| Posted: 09/12/2007 21:22 PM Post subject: |
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space monkey
Joined: 15 Mar 2007
Posts: 7050
11306.91 Spud Bux
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hehe that looks like copperhead prime on acid  |
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| joannaardway |
| Posted: 09/13/2007 8:27 AM Post subject: |
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Brigadier General
Joined: 09 Oct 2006
Posts: 961
115.90 Spud Bux
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| jackssmirkingrevenge wrote: | | hehe that looks like copperhead prime on acid |
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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| jackssmirkingrevenge |
| Posted: 09/13/2007 22:16 PM Post subject: |
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space monkey
Joined: 15 Mar 2007
Posts: 7050
11306.91 Spud Bux
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| 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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| windshrike |
| Posted: 09/17/2007 17:06 PM Post subject: |
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Sergeant Major
Joined: 28 Jun 2007
Posts: 178
444.10 Spud Bux
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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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| jackssmirkingrevenge |
| Posted: 09/18/2007 1:15 AM Post subject: |
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space monkey
Joined: 15 Mar 2007
Posts: 7050
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It's a regular schrader from a bike inner tube, not threaded but set in the epoxy.
| Quote: | | 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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| FeLeX |
| Posted: 09/18/2007 7:10 AM Post subject: |
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Captain
Joined: 10 Mar 2007
Posts: 308
254.45 Spud Bux
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| You can make a pilot of some sort for a trigger cannon. Cant you? |
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| DYI |
| Posted: 09/18/2007 18:34 PM Post subject: |
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Rear Brigadier
Joined: 07 Jul 2007
Posts: 2308
1164.60 Spud Bux
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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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| windshrike |
| Posted: 09/18/2007 18:39 PM Post subject: |
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Sergeant Major
Joined: 28 Jun 2007
Posts: 178
444.10 Spud Bux
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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?
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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| DYI |
| Posted: 09/18/2007 18:46 PM Post subject: |
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Rear Brigadier
Joined: 07 Jul 2007
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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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| jackssmirkingrevenge |
| Posted: 09/19/2007 4:10 AM Post subject: |
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space monkey
Joined: 15 Mar 2007
Posts: 7050
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I like cookies
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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| windshrike |
| Posted: 09/19/2007 15:35 PM Post subject: |
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Sergeant Major
Joined: 28 Jun 2007
Posts: 178
444.10 Spud Bux
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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.
| Quote: |
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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| Antonio |
| Posted: 01/29/2008 13:47 PM Post subject: |
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Captain of Industry
Joined: 13 Aug 2006
Posts: 495
24.52 Spud Bux
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| 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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