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Cross bow that fires paintballs

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    Posted: 05 December 2004 at 9:35pm
What if you were to modify a crossbow to shoot paint balls? Quiet, and midevil. Could make for some interesting games.  
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Darur Quote  Post ReplyReply Direct Link To This Post Posted: 05 December 2004 at 10:03pm
Do explain how you intend to A.  Make paintball move without breaking it, B.  Keep paint from just flying out the top of the thing, and C.  Make it fire with accuarcy. 

Edited by Darur
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Post Options Post Options   Thanks (0) Thanks(0)   Quote reincarnation14 Quote  Post ReplyReply Direct Link To This Post Posted: 05 December 2004 at 10:11pm
not flaming you, but it would never work
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Juno Trevan Quote  Post ReplyReply Direct Link To This Post Posted: 05 December 2004 at 10:55pm
Why not? Slingshots work just fine. Why couldn't a crossbow?
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Post Options Post Options   Thanks (0) Thanks(0)   Quote 98 nitro Quote  Post ReplyReply Direct Link To This Post Posted: 05 December 2004 at 11:00pm
i no i wouldnt buy a paintball cross bow b/c u get like one shot and itll take forever to load up
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Dave_09 Quote  Post ReplyReply Direct Link To This Post Posted: 05 December 2004 at 11:26pm
put a cuplike thing where teh string meats with the paintball it would be cost efficient equaling no co2 needs
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Darur Quote  Post ReplyReply Direct Link To This Post Posted: 06 December 2004 at 12:04am
Originally posted by Juno Trevan Juno Trevan wrote:

Why not? Slingshots work just fine. Why couldn't a crossbow?


The force is applied differently.

When you fire it from a sling shot, the force is applied directly to the ball and there is much less force.  From a cross bow the force is concentrated by the bow string to one small part and the force is much greater.  If a cup is used it would merely flip the ball all over the place.  How do you plan to keep that cup always facing dead straight? 

Also, too much force and no matter what you do its going to break, too little and it just falls on the ground.  You cant apply enough force to the ball to send it flying a good distence at the target without breaking the ball.

It just wont work.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote the_blade Quote  Post ReplyReply Direct Link To This Post Posted: 06 December 2004 at 8:09am
wrist rocket...... if you really wanna be quiet...... I dont know how legal they are on the feild.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote plasoccri Quote  Post ReplyReply Direct Link To This Post Posted: 06 December 2004 at 1:28pm

Has anyone sen the Nerf Crossbow? I don't know if they even still make it. But it was designed so when you cocked it, it compressed a bit of air to propell the dart. Maybe something like that would do it. At least you wouldn't have to worry about running out of co2 or air.

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Post Options Post Options   Thanks (0) Thanks(0)   Quote rkelley41 Quote  Post ReplyReply Direct Link To This Post Posted: 06 December 2004 at 1:33pm
I think that if you were to make a stock for the cup to launch the paintball, have the cup have runners both top and bottom with the bowstring attached to the sides. The runners would fit into a groove milled into the top and bottom of the stock. That way the cup would stay aligned both vertically and horizontally. The only bad thing would be that the velocity could not be adjusted very easily.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote plasoccri Quote  Post ReplyReply Direct Link To This Post Posted: 06 December 2004 at 2:21pm

Ya, that would work. But what about attaching a ballel to it. Then everything would be contained and kept alined withinn the barrel. That would keep it accurate.

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Post Options Post Options   Thanks (0) Thanks(0)   Quote mod98commando Quote  Post ReplyReply Direct Link To This Post Posted: 06 December 2004 at 3:16pm
I think it is possible to make a working crossbow for paintball. It's hard to explain the design I'm thinking of but I might be able to put together a picture to show you. If I get a picture made I'll link you to it. I have the whole design in my head but I need a picture to explain it. I don't think you could make it arm itself after every shot but it's possible to attach a hopper and just arm it manually after each shot. You could easily make it shoot at normal velocities too, it just depends on the string tension. The key to not breaking the ball when firing is to have a piece on the string that cups the ball and to have it rest against the ball the whole time. That way it will accelerate the ball instead of smacking it.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Glassjaw Quote  Post ReplyReply Direct Link To This Post Posted: 06 December 2004 at 3:47pm
Originally posted by mod98commando mod98commando wrote:

I think it is possible to make a working crossbow for paintball. It's hard to explain the design I'm thinking of but I might be able to put together a picture to show you. If I get a picture made I'll link you to it. I have the whole design in my head but I need a picture to explain it. I don't think you could make it arm itself after every shot but it's possible to attach a hopper and just arm it manually after each shot. You could easily make it shoot at normal velocities too, it just depends on the string tension. The key to not breaking the ball when firing is to have a piece on the string that cups the ball and to have it rest against the ball the whole time. That way it will accelerate the ball instead of smacking it.


Same thing.  I have a whole blueprint set up, i have a way to keep the cup straight, to keep the ball against the cup.  Meh.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote plasoccri Quote  Post ReplyReply Direct Link To This Post Posted: 06 December 2004 at 3:53pm

Originally posted by mod98commando mod98commando wrote:

I think it is possible to make a working crossbow for paintball. It's hard to explain the design I'm thinking of but I might be able to put together a picture to show you. If I get a picture made I'll link you to it. I have the whole design in my head but I need a picture to explain it. I don't think you could make it arm itself after every shot but it's possible to attach a hopper and just arm it manually after each shot. You could easily make it shoot at normal velocities too, it just depends on the string tension. The key to not breaking the ball when firing is to have a piece on the string that cups the ball and to have it rest against the ball the whole time. That way it will accelerate the ball instead of smacking it.

Having the string touching the ball so it isn't smacking it, thats exactly what I was thinking. But still not sure on how to work it all. Ya, if you could link me a design, that'd be awsome.

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Post Options Post Options   Thanks (0) Thanks(0)   Quote mod98commando Quote  Post ReplyReply Direct Link To This Post Posted: 06 December 2004 at 4:36pm

Here: Crossbow pic

You basically just slap a barrel onto a crossbow and throw on some other familiar gun parts. You use a piece connected to the string that slides into the barrel and pushes the ball when the string goes forward. The hopper is placed in the elbow which is directly over the barrel and the paint falls in through a hole in the top of the barrel. When you pull the string back, the bolt goes with it and a ball can fall into the chamber. The sear will catch the bolt when it gets pulled back far enough and then the trigger can trip it to fire the crossbow. It works just like a 98c or A5 but with a crossbow frame. It will rely on pretty strong tension in the string.



Edited by mod98commando
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Post Options Post Options   Thanks (0) Thanks(0)   Quote plasoccri Quote  Post ReplyReply Direct Link To This Post Posted: 06 December 2004 at 6:20pm
Thanks mod98commando. I'm getting a crossbow by the end of this month hopefully. Depends on how big my paycheck is (Sad but I made more money hearding goats at my school, no joke, I was a goat hearder for my highschool, talk about hicksville).
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Post Options Post Options   Thanks (0) Thanks(0)   Quote procarbsniper88 Quote  Post ReplyReply Direct Link To This Post Posted: 06 December 2004 at 7:04pm
i think it would be possible. they had rapid fire cross bows in asia, and they also have made a cross bow similar to a sling shot to fire lead shot, so combine the two, and you should be able to shoot paitballs just fine.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote evil_fingers Quote  Post ReplyReply Direct Link To This Post Posted: 06 December 2004 at 10:28pm
Jus grab a handful of balls and borrow yer moms or yer sisters C or D cup bra and use that as a sling slot and you can call it The Double Barrel!
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Skorpion317 Quote  Post ReplyReply Direct Link To This Post Posted: 06 December 2004 at 10:59pm

the cup could be fixed into a track in the crossbow, with the string on either side of the cup. that way, the cup stays locked in.

I don't see the practicality of this though.

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Post Options Post Options   Thanks (0) Thanks(0)   Quote plasoccri Quote  Post ReplyReply Direct Link To This Post Posted: 06 December 2004 at 11:07pm
Originally posted by Skorpion317 Skorpion317 wrote:

the cup could be fixed into a track in the crossbow, with the string on either side of the cup. that way, the cup stays locked in.

I don't see the practicality of this though.

The practicality of it is that it would be quieter, in therory, than a paintball gun. Though it would only have an effective range of maybe 50 to 75 feet, it would allow for a steathier play, great for picking off a patrol of 1 or 2 guys. As my dad calls it, its an assasin weapon. Lightweight, portable, quiet, easy to use. At least in my form of play it would be quite handy.

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