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My first spud gun

Built a pneumatic cannon? Then post it here! This section is for completed, finished cannons that you have built. Please include pictures and information.
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My first spud gun

Unread postAuthor: Pax » Fri Mar 19, 2010 7:16 pm

Pneumatic, single shot, pvc wonder

Cant give you much on the specs, Being i kinda just threw it all together, But it preforms rather well






Pictars!

Image

Image

Image

Image

The only con i have with my gun, Is POWER. Is there anything i can do to make it alot more powerful? bigger air tank, ect, Im shooting AA batterys and homemade darts out of it, Thanks. And sorry for the crappy cell phone camera
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Last edited by Pax on Fri Mar 19, 2010 7:29 pm, edited 2 times in total.

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Unread postAuthor: irisher » Fri Mar 19, 2010 7:18 pm

You could try to use a piston valve. But I would just start a new one due to the ghettoness
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Last edited by irisher on Fri Mar 19, 2010 7:31 pm, edited 1 time in total.
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Unread postAuthor: Gun Freak » Fri Mar 19, 2010 7:26 pm

That's really ghetto :D
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Unread postAuthor: Pax » Fri Mar 19, 2010 7:30 pm

Lol, Sorry for messing up the pics, Got them fixed now

And it is really ghetto xD


Edited by jrrdw, no more double posting, use the edit button.
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Unread postAuthor: clemsonguy1125 » Fri Mar 19, 2010 7:31 pm

To make it more powerful you could add a longer barrel maybe because Im not sure about its length, make sure the breech is sealing by adding orings and finally you could rebuild the gun using a piston valve and pilot it by the solnoid valve, also if you want to make it cleaner you can paint it and replase the duct tape with hose clamps
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Unread postAuthor: Pax » Fri Mar 19, 2010 7:32 pm

Piston valve, Heard that twice....How would i go on doing that?
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Unread postAuthor: clemsonguy1125 » Fri Mar 19, 2010 7:38 pm

http://www.instructables.com/id/Golfbal ... That-Shoo/
Like this, its a 2 inch version but can easily by scaled down, and for more info just look through the pneumatic showcase
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Unread postAuthor: deathbyDWV » Fri Mar 19, 2010 9:13 pm

Unless it's just the pictures... The connection between tha chamber and the valve looks really small. Smaller than one inch... If this is so... Then that would be restricting flow, lowering power...

Other than that, good first.
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Unread postAuthor: Crna Legija » Fri Mar 19, 2010 10:12 pm

this and this helped me when i made my first
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Unread postAuthor: jhalek90 » Sat Mar 20, 2010 9:06 am

Holy primer spills batman!
It looks like you had a minor epilepsy attack while doing the primer/glue!


Good job for your first cannon though.,... what PSI do you shoot it at?
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POLAND_SPUD wrote:Anything is possible with the proper 3-way valve.
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Unread postAuthor: jackssmirkingrevenge » Sat Mar 20, 2010 10:39 am

Good god, that literally hurt my eyes!

We need more details to advise you on how to improve power. For starters, tapping your blowgun directly into you sprinkler valve will give you better opening time. What pressure are you using? Pressure is more or less directly proportional to muzzle energy, so there's a big difference between 50 psi and 100 psi.

A pic of the whole launcher would help instead of trying to piece together the jigsaw puzzle you presented :D

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Unread postAuthor: Pax » Sun Mar 21, 2010 2:50 pm

Uhh, About 90 - 120 psi to answer the questions...

And i feel very special about my award! :D Now if only i had a speech to give
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Unread postAuthor: Gun Freak » Sun Mar 21, 2010 4:34 pm

"I'm speechless" :D haha
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Unread postAuthor: deathbyDWV » Sun Mar 21, 2010 5:19 pm

So can you take a pic of the whole thing?
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Unread postAuthor: chinnerz » Mon Mar 22, 2010 12:19 am

hahahah! ghetto award!!!! thats awesome!!

haha its got a can of wd 40 on it :D
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