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Why not convert a paintball marker?

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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Why not convert a paintball marker?

Unread postAuthor: David Bartlett » Thu Dec 24, 2009 10:49 pm

Hi all,

Why not convert a inexpensive paintball marker to shoot smaller size objects?

Has this been discussed before? I couldn't locate any prior posts.

David
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Unread postAuthor: D_Hall » Thu Dec 24, 2009 11:17 pm

It's trivial. It's been done.

Biggest issue from my perspective is limited variability in the shot. IE, maybe I don't want to shoot at X velocity. Maybe I only want X/10. Those hammer valves don't have THAT much variability to 'em.
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Unread postAuthor: turner » Fri Dec 25, 2009 1:13 am

http://www.barragebarrel.com/ im sure you could change the speed. you can set the dwell times and most guns have a lower pressure regulator.
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Unread postAuthor: artillerycreations » Fri Dec 25, 2009 1:14 am

I am wondering what you would want to shoot. Using a discarding sabot would give more surface area for the pressure to act on and giving a smaller ammo more power. Maybe your not concerned with all out power but i think more info on the why of doing this is needed.
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Unread postAuthor: hi » Fri Dec 25, 2009 1:38 pm

that's cheating, its against the rules of spud gun building... :lol:
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Unread postAuthor: al-xg » Fri Dec 25, 2009 2:31 pm

I've made airsoft conversions for paintball guns before using a blow forward bolt, but obviously you need to tune the pressure right down or you'll be shooting hot.
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Unread postAuthor: POLAND_SPUD » Fri Dec 25, 2009 2:31 pm

this seems like a good idea... I was considering doing something similar myself but PB guns are no very popular here and because of that they are just way too expensive
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Unread postAuthor: jackssmirkingrevenge » Sat Dec 26, 2009 1:48 am

al-xg wrote:you need to tune the pressure right down or you'll be shooting hot.


You say that like it's somehow a bad thing :D
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Unread postAuthor: jackssmirkingrevenge » Sun Dec 27, 2009 6:32 am

There's your answer, thanks to django for the heads up :)

Image

edit :oops: ooops, turner had already linked to the above...
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Last edited by jackssmirkingrevenge on Sun Dec 27, 2009 8:31 am, edited 1 time in total.
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Unread postAuthor: Demon » Sun Dec 27, 2009 8:14 am

There's your answer, thanks to django for the heads up


That modded paintball gun is so nice! They could make an airsoft version of it.

Edit:

Woops, its not what i have tought. Why not make a paintball airgun but with a smaller ammo loading bolt? So we could ge semi and full auto with 6mm .22 or .177

http://www.youtube.com/watch?v=pEdKtnojr0k
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Last edited by Demon on Sun Dec 27, 2009 8:18 am, edited 1 time in total.
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Unread postAuthor: jackssmirkingrevenge » Sun Dec 27, 2009 8:18 am

Demon wrote:They could make an airsoft version of it.


ummm...

:roll: :D

Demon wrote:Why not make a paintball airgun but with a smaller ammo loading bolt? So we could ge semi and full auto with 6mm .22 or .177


Thread about that here.
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Unread postAuthor: outerdirkness » Tue Dec 29, 2009 10:41 pm

Ummmmmm ..... indeed, the problem is "what?" seems like a great platform...what is the problem?
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Unread postAuthor: POLAND_SPUD » Wed Dec 30, 2009 12:34 am

yeah I remember that gun... I am almost sure it uses a solenoid 3 way valve as the main valve and a 555timer to achieve full-auto.. even if it doesn't then I think that the same performance could be achieved in the way I described
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Unread postAuthor: Davidvaini » Wed Dec 30, 2009 12:56 am

jackssmirkingrevenge wrote:
Image

edit :oops: ooops, turner had already linked to the above...


One cruiciial mistake with that design, the ball detent is at the bottom.. this would cause the projectile to have a forward spin which would be opposite of what you would want. You would want backward spin to increase range and accuracy.
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Unread postAuthor: jackssmirkingrevenge » Wed Dec 30, 2009 1:25 am

Davidvaini wrote:One cruicial mistake with that design, the ball detent is at the bottom...


We had discussed this when I first suggested the detent, still it seems to be for manufacturing conveneience in this case as it is directly opposite the hopper.
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