kind of paintball gun... Updated! v2

Show us your pneumatic spud gun! Discuss pneumatic (compressed gas) powered potato guns and related accessories. Valve types, actuation, pipe, materials, fittings, compressors, safety, gas choices, and more.
fretmelter
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Wed Feb 13, 2008 9:59 pm

ok then the pressure will make it go forward and fire a ball right?
Projects:
copper paintball gun
paintball gun from scratch
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stereohead
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Thu Feb 14, 2008 1:21 am

Yes!.

Is this design better than the otter one?


/edit:

What pressure do you recommend? (it dont't have to be lethal :wink: )
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jackssmirkingrevenge
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Thu Feb 14, 2008 3:02 am

thespeedycicada wrote:it might work but i think the air will just slowly leak out without cycling the valve.
jsr has alot of experience with this phenomenon. :D
Sadly I do, and I suspect it will happen in this case.
hectmarr wrote:You have to make many weapons, because this field is long and short life
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stereohead
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Thu Feb 14, 2008 9:04 am

ok, tnx.
So what do you think of my 2th design?
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jackssmirkingrevenge
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Thu Feb 14, 2008 10:57 am

stereohead wrote:So what do you think of my 2nd design?
It has a much better chance of working, because you're cutting off the air supply as the bolt moves forward. It's similar in principle to the idea posted here.

Image
hectmarr wrote:You have to make many weapons, because this field is long and short life
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stereohead
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Thu Feb 14, 2008 1:51 pm

Hey tnx, that's nice.

How big does the chamber have to be?
And what pressure do i need for just shooting 'not lethal paintballs' ?
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jackssmirkingrevenge
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Thu Feb 14, 2008 2:02 pm

How big does the chamber have to be?
at least the same volume as your barrel
And what pressure do i need for just shooting 'not lethal paintballs' ?
you should be fine with 50-75 psi
hectmarr wrote:You have to make many weapons, because this field is long and short life
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Leonard
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Thu Feb 14, 2008 8:43 pm

Look likes the semi-auto design i posted a week ago : http://www.spudfiles.com/forums/album_s ... d,361.html

It worked for me, i used a modded sprinkler valve, so it was 2 or 3 seconds before the valve would actuate correcly and the chamber would fill up at about 75 psi. The only way to make a semi-auto mecanism to work faster would be to only use a smal part of the air contained in the chamber.
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