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A place to ask general spud cannon related questions.
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Unread postAuthor: WieBer Fuchs » Sun Mar 13, 2005 10:29 pm

my question is: what are the difference betwwen the types
what kind should a newbie like me use and startoff with
is there one that can be used as a paintball cannon?

thanks for the help. :)
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Unread postAuthor: RaBiDWolf » Mon Mar 14, 2005 9:20 am

I Belive For A Paintball Gun My Best Preferance Would Probably be a Pneumatic One... It Is The Better One I Think :wink:
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Unread postAuthor: boilingleadbath » Mon Mar 14, 2005 4:31 pm

I'd like to point out that the pneumatics can generate speeds way too high to safly use for paintball. You can put non-frozen balls through those 55 gallon plastic barrels, and that's not with a insanly sized gun.
A combustion could be done, but then again, those things can shoot very fast too.

My advice: if you build a paintball cannon, do it for the eaze and commoness of the ammo, not so you can "safly" shoot people. Because you can't.
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Unread postAuthor: PCGUY » Mon Mar 14, 2005 5:29 pm

Most people start off with building combustions then moving onto pneumatics... I suggest playing with a midsize combustion first and see how it goes.
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Unread postAuthor: iamthewalrus » Mon Mar 21, 2005 5:53 pm

ive never made a combustion, but would the flame busrt or rupture the paintball or do i just have no idea what im talking about??
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Unread postAuthor: spudshot » Mon Mar 21, 2005 8:34 pm

well, the combustion only lasts like a millisecond, so it wont do much damage, and someone on spudtech (Dex?) built a combustion paintball gun without much trouble
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Unread postAuthor: calvintennant » Sun Oct 23, 2005 6:13 pm

I'd like to point out that the pneumatics can generate speeds way too high to safly use for paintball. You can put non-frozen balls through those 55 gallon plastic barrels, and that's not with a insanly sized gun.
A combustion could be done, but then again, those things can shoot very fast too.

My advice: if you build a paintball cannon, do it for the eaze and commoness of the ammo, not so you can "safly" shoot people. Because you can't.


i really don't think pneumatics are too powerful. Correct me if I am wrong, but pneumatics means it uses compressed air (Co2) to shoot, just like a paintball gun.

go to http://corin.com/bill/paintball/aircannon/ on that site you will find a sub-page http://corin.com/bill/paintball/aircannon/cartridges.html. Now, if you used a shell like that to launch the paintballs.. that would be freakin' awesome! I'm working on a design right now for a pump action launcher like this to be mounted on the back of a vehicle :D
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Unread postAuthor: joemama » Sun Oct 23, 2005 6:34 pm

OK DUDE that is BULL CRAP about how u said that air cannons have less or little power air cannons have way more power than combustions and they are the best thing that u can make (afodably and other reasons)



that site is when i bult my first cannon i recomend that site if ur a noob but the hard part was the wireing i think when i did it but i recomend it for noobs
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Last edited by joemama on Sun Oct 23, 2005 9:09 pm, edited 1 time in total.

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Unread postAuthor: drac » Sun Oct 23, 2005 6:40 pm

calvintennant wrote:i really don't think pneumatics are too powerful. Correct me if I am wrong, but pneumatics means it uses compressed air (Co2) to shoot, just like a paintball gun.

Noooooo, really? :P Couldn't resist the opportunity to be sarcastic. :lol:

The valve in a paintball gun only lets out a small bit of CO2, a hammer valve, correct? The sprinkler valves we use have a flow rate, and let out all the gas very quickly, because of a faster opening time. Add that to a longer barrel, and you have a VERY powerful gun, to dangerous for a paintball match.

The flow of a sprinkler valve is phenomenal compared to a hammer valve of the same size, I think.
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Unread postAuthor: calvintennant » Sun Oct 23, 2005 6:43 pm

Hey I'm back just really quick, here's the design I've been working on, http://people.howstuffworks.com/paintball-3d-gun.htm has a really good explanition on what my diagram is if you dont get it. Also the pics for the cartriges wer taken directally from http://corin.com/bill/paintball/aircannon/cartridges.html

le'mmie know watcha think!

PS, i want to get some cad software soon :D
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Unread postAuthor: calvintennant » Sun Oct 23, 2005 6:45 pm

Noooooo, really? Razz Couldn't resist the opportunity to be sarcastic. Laughing

kk, i just put up a pic of my design, think it would work??
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Unread postAuthor: drac » Sun Oct 23, 2005 7:55 pm

Hmmm, I can't quite seem to discern how it works, other than when the trigger is pulled, that hammer is release. But that doesn't quite make sense. In a paintball gun, the hammer hits a little thing connected to the CO2 line, allowing it to open and realease gas, but that doesn't seem to work that way. Maybe a more clear explanation?
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Unread postAuthor: calvintennant » Mon Oct 24, 2005 9:27 am

Yeah i understand why you don't get it, i didn't get the concept either, check out this 3D diagram, cleared up alot for me! http://people.howstuffworks.com/paintball-3d-gun.htm
Look closely and zoom in on the cup seal, little holes on the side of the valve tube let air through.

- edit -
you can also go to http://people.howstuffworks.com/paintball2.htm for a written explanition.. i basically ripped my idea off of this
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Unread postAuthor: taterjim » Thu Nov 24, 2005 11:02 pm

I have a small combustion ,a pistol type that shoots paintballs ,It has about a 10" barrel ,a very small chamber ,I belive about 5or 6" in length with a 2" diameter. most of the paint balls do not blow to pieces when shot but they really shoot pretty hard . I would not want to be shot by it . It will go through a cardboard box.and they sometimes curve in flight ,suggestion they are going pretty fast. It has a handle made from an old chinese type pellet pistol.
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Unread postAuthor: boilingleadbath » Fri Nov 25, 2005 1:49 pm

A quick run-through with the GGDT indicates that those paint balls should be getting a speed of about 300 feet/sec... typical paintball velocities, if I remember right. (but remember that the GGDT is intended for combustions.
The curving is most likely a symptom of the paintball being launched spinning - magnus force effects.
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