Special Ops Paintball: A new concept launcher - Special Ops Paintball

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A new concept launcher Propellant-Free LAW!

#16 User is offline   PliskinAJ 

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Posted 14 February 2007 - 12:35 PM

That would be awesome if someone was making a recoilis paint rifle that would go on the back of a truck or something. How much pressure can they take?
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#17 User is offline   Skippy 

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Posted 14 February 2007 - 02:20 PM

Sure, I'm sure there are valves that would work. But understand that this is pretty much stuck as being a single shot and discard weapon, unless you have a very fast vacuum pump mounted on a vehicle or something. That's why I think adding valves is just a waste of time and material, plus it's introducing something else that could fail. If tape fails, big deal. Recharge it with a new strip. If that valve starts leaking, you're out of luck until you have time to take a look at it, meaning the launcher is out of service at least for the rest of the day.
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#18 User is offline   Noob_Killer 

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Posted 14 February 2007 - 04:43 PM

Tape could fail easier than any vavle (and probably will more often).
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#19 User is offline   Skippy 

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Posted 14 February 2007 - 06:49 PM

This is true, but if tape fails, it's much less painful to your watch and wallet than a valve. Also, tape is surprisingly resiliant. It can take quite a lot of vacuum, for quite a long time. In my opinion, the pros outweigh the cons. Provided you have a cap over it until you are ready to fire, the tape will not fail unless it was old/bad/improperly placed.
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#20 User is offline   noxx55 

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Posted 14 February 2007 - 07:21 PM

Has this been tried yet?
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#21 User is offline   Skippy 

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Posted 14 February 2007 - 08:03 PM

Not yet. I plan to try it as soon as I have time to spare. I know it will work, I just don't know how short the barrel can be while retaining enough power.
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#22 User is offline   geezer 

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Posted 14 February 2007 - 08:28 PM

Being a plumber by trade I would suggest using schedule 80 grey pvc. it can be tapped and threaded. :usa:
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#23 User is offline   Skippy 

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Posted 14 February 2007 - 08:51 PM

schedule 80 might be a bit overkill. Threads aren't necissary, and the only modification to the tube is the attachment of a valve. That could be done pretty easily with little more than a drill and some epoxy.

Personally, I'm probably going to use schedule 40 ABS, because it's really easy to find for me. That, and it's infinately stronger than PVC in this application.
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#24 User is offline   Flakk 

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Posted 26 February 2007 - 11:56 PM

I'd like to once again advocate a hybrid system using both the vacumn and pressure. The vacumn by itself is not an efficient means of propulsion. Your welcome to experiment, just know that fluids are easier to concentrate than rarify, you can't play a trumpet backwards as well as forwards.
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#25 User is offline   Sgt_Doofy 

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Posted 27 February 2007 - 01:12 AM

wouldnt you have to have the muzzle sealed too? or else how would you make a vacuum?

EDIT: oh now i got it. Wow, im dumb. Wouldn't the pressure from the vacuum create a force upon the end cap though, a substantial amount at that? And for a good amount of force behind said projectile, wouldnt you need the barrel and projectile bores matched accurately?

This post has been edited by Sgt_Doofy: 27 February 2007 - 01:19 AM

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#26 User is offline   Skippy 

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Posted 27 February 2007 - 07:11 PM

Yes, there needs to be a fairly good seal, but that's nothing special. Any air cannon needs a good seal in order to work.

Anyway, don't go preaching that "this won't work" or "needs pressure" because it DOES work. The physics behind it are pretty simple, and it most definately IS an efficiant means of propulsion. Look it up, there are plenty of videos of people shooting ping pong balls through cans and stuff with one of these out there, and that isn't an easy feat.
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#27 User is offline   TREE FITTY 

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Posted 27 February 2007 - 08:12 PM

Lets see. I got dibs on the rifle grenades in process... I'd like to say that if you make more than one I got ya hooked up... in other words..
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#28 User is offline   Gerik Bensing 

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Posted 27 February 2007 - 08:32 PM

Seems like a really good idea. Give us an update as soon as you make one!

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