Pneumatic Cannons

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SpudFiles Potato Gun Commercial

Last post by quinn whitsitt
Posted in Combustion Cannons
Replies: 15
by PCGUY » Tue Oct 29, 2013 10:54 pm » in Combustion Cannons
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I've been wanting to get in some spud shooting action this fall before the weather got cold. I know it's been a while since I filmed anything for...

Last post

thank you for creating this website is there anything i can do to help
15 Replies

885653 Views

Last post by quinn whitsitt
Fri Feb 09, 2024 2:38 pm
Directional Control Valves (3way valves and stuff like that)

Last post by jpalf1
Replies: 86
by POLAND_SPUD » Sun Mar 07, 2010 1:12 am
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Directional Control Valves, commonly refereed to as 3,4,5 etc. valves or spool/poppet valves etc., can be very useful for spuders.
They can be used...

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very,useful info for a beginner such as myself.The links are great as well.Thankyou.(you won't believe this but as i was reading,my fridge comp...
86 Replies

431921 Views

Last post by jpalf1
Sat Apr 13, 2013 10:53 am
Sprinkler Valve Troubleshooting Guide

Last post by quinn whitsitt
Replies: 64
by noname » Sat Jun 16, 2007 12:15 am
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Sprinkler Valve Troubleshooting

This is a guide to sprinkler valve problems. Before creating a new topic to ask questions on why your valve isn't...

Last post

great job everyone
64 Replies

364459 Views

Last post by quinn whitsitt
Thu Feb 22, 2024 2:18 pm
Piston Valves Explained Visually

Last post by pavina
Replies: 178
by clide » Mon May 14, 2007 11:21 pm
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I had this posted on Spudtech, but I am reposting it here to hopefully help some people out and allow for discussions/updates.

Well I made this...

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Thanks for sharing this! It might also be useful to mention how friction and maintenance can affect performance over time. Looking forward to more...
178 Replies

609392 Views

Last post by pavina
Fri Sep 27, 2024 4:05 am
"How Much CO2 do I need?"

Last post by choke
Replies: 32
by BC Pneumatics » Sun Apr 01, 2007 9:52 pm
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For all those people out there looking for a rough idea of how much CO2 they will need for a chamber of any given size-
Just multiply the volume of...

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Great piece of software :) I've been kicking numbers round my head for a while now, and wondered if someone here could confirm. I'm filling a 1.5 dia...
32 Replies

324718 Views

Last post by choke
Thu Jul 04, 2013 2:38 pm
Valve Cutaways

Last post by jhalek90
Replies: 8
by PCGUY » Sat Feb 26, 2005 9:10 pm

First post

VALVE CUTAWAY

Provided By - Longshot

These are some pictures of some of the most popular valves used on spud cannons. Only difference is, these...

Last post

Can someone fix the picture links??

8 Replies

76938 Views

Last post by jhalek90
Wed Oct 07, 2009 2:13 pm

Topics

Shrader Valve

Last post by xops007
Replies: 15
by xops007 » Sun Jul 01, 2007 9:03 pm
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can u buy a Shader Valve at homedepo and if soo how much??

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k.... thanks guys
15 Replies

4438 Views

Last post by xops007
Mon Jul 02, 2007 10:18 pm
Coaxial Bazooka?

Last post by Hailfire753
Replies: 15
by Hailfire753 » Sat Jun 30, 2007 3:45 pm
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Hey peeps, waz up. Sry for any noobishness that follows, but my first spudgun is a combusion, and was looking to make a pneumatic.

I want to make...

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Uummm... I think I will go with a coaxial bazooka also. To compensate for the 8:1 C to B ratio, at the front I will add a female adapter that does...
15 Replies

3551 Views

Last post by Hailfire753
Mon Jul 02, 2007 4:41 pm
Where do you get your QEVS?

Last post by origin unknown
Replies: 6
by socoj2 » Mon Jul 02, 2007 8:35 am

First post

have yet to find a decent suplier...

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Mead fluid dynamics makes piston QEVs, not the usual diaphram ones. Their website has a place were you can find the retailers of their products....

6 Replies

1376 Views

Last post by origin unknown
Mon Jul 02, 2007 4:06 pm
ball piston?

Last post by mopherman
Replies: 21
by pyromaniac » Sun Jul 01, 2007 7:07 pm
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i remember a topic on haveing a ball piston. Well today at ym family ruinion my cousins brought lacross sticks and a ball. i began to think. would...

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It seems like it would work. The only problem i can see is that the ball gets jammed in the barrrel port and refuses to pilot.
21 Replies

4212 Views

Last post by mopherman
Mon Jul 02, 2007 3:28 pm
Piston problem

Last post by spud yeti
Replies: 13
by spud yeti » Mon Jul 02, 2007 4:28 am

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Hey, I have just finished my coaxial piston valve cannon and have a problem. The piston wont seal against the barrel and air is flowing into the...

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yeah, im pretty bleek at the moment, because i tried pumping my gun up, but the piston wouldnt seal. But on the bright side, im going to the store...

13 Replies

1775 Views

Last post by spud yeti
Mon Jul 02, 2007 3:09 pm
Two Piston design options.

Last post by rednecktatertosser
Replies: 11
by Panzerfaust » Fri Jun 29, 2007 5:04 pm

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While after the poor performance of my Tee Piston (see ) I have decided to rebuild it putting male/female adapter that allows piston access in front...

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True but also consider the vaccum effect behind the piston assisting the opening, as for the orings you can use a drill or drill press and a hack saw...

11 Replies

2170 Views

Last post by rednecktatertosser
Mon Jul 02, 2007 12:51 pm
shock pumps

Last post by spud yeti
Replies: 16
by roughboy » Thu Jun 28, 2007 7:04 pm
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Can someone tell me what is the strongest shock pump there is? what i mean is what's the largest psi number there is on a shock pump? the strongest...

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That sounds really cool. did you post the list under the how to section im guessing? Im interested :D
16 Replies

4456 Views

Last post by spud yeti
Mon Jul 02, 2007 9:12 am
pneumatic valve problem

Last post by pat123
Replies: 10
by pat123 » Fri Jun 29, 2007 9:25 am

First post

hi I have a 2inch by 24 inch chamber and a 1/2inch barrel. my sprinkler valve honks when i try to pump up the chamber so i bought a ball valve to go...

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i tried eveything I could think of to seal the blow gun. I finally got the adapter sealed and now it leaks where the adapter screws into the blowgun.

10 Replies

3166 Views

Last post by pat123
Mon Jul 02, 2007 8:50 am
Pneumatic Pirate Ship Cannon

Last post by Jolly Roger
Replies: 15
by andybigfoot2 » Fri Jun 29, 2007 1:56 pm
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Me and my friends are building a pirate ship. We need to make cannons for this vessel. We have an unlimited budget and we are looking for a powerful...

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I reckon a well made combustion would be the go. Got the bang and the flames and all. If you look around on here in the forums and wiki you'll find...
15 Replies

4322 Views

Last post by Jolly Roger
Mon Jul 02, 2007 7:07 am
what will happen if...?

Last post by Hotwired
Replies: 6
by Specialist » Sat Jun 30, 2007 10:23 pm

First post

well im working on a ball valve copper gun and im sweating the pipes together. i sweated evrything except the ball valve and barrel. there are little...

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I've never seen endfeed ballvalves... I'd have thought it was a pretty bad idea to make ones with seals that melt as you attach them to your...

6 Replies

1687 Views

Last post by Hotwired
Mon Jul 02, 2007 4:28 am
piston rifle-"bang!!" sound

Last post by jackssmirkingrevenge
Replies: 4
by roughboy » Mon Jul 02, 2007 12:01 am

First post

What makes the bang!! sound on a coaxle piston rifle?Is it the piston hitting the pumper or is it air gushing out the barrel at a very very fast...

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It's the muzzle blast, basically the air exiting the muzzle is breaking the sound barrier (though this doesn't necessarily mean your projectile is...

4 Replies

1473 Views

Last post by jackssmirkingrevenge
Mon Jul 02, 2007 2:31 am
is there a way to make a old propane tank into a air tank

Last post by chaos
Replies: 25
by 666lucky693 » Sun Jul 01, 2007 1:06 am
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i was wondering if u could use an old propane torch tank as a small air tank or use a big propane tank as a air tank if any one knows how send me the...

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Just use the liquid propane already within the tank. The pressure will be a constant 90 - 120psi, and a 20lb tank would outlast your gun.

exactly
25 Replies

6304 Views

Last post by chaos
Sun Jul 01, 2007 10:51 pm
T Shirt shooter Idea

Last post by turbohacker
Replies: 12
by turbohacker » Sat Jun 30, 2007 2:14 am

First post

I built a couple of tshirt guns for high schools and I think that it is time for me to take it to the next level. I came up with this idea, it is...

Last post

Sorry about not getting back to you guys very soon, Ive been busy. Well to start off, thank you very much for the comments, I will take them to...

12 Replies

3252 Views

Last post by turbohacker
Sun Jul 01, 2007 9:17 pm
How can i make a piston for a 2" piece of pipe

Last post by 666lucky693
Replies: 14
by 666lucky693 » Sat Jun 30, 2007 11:05 pm

First post

i am going to make a coaxial piston cannon and i need to make a piston can any one give me a easy design for a piston that size and i am wondering if...

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well i made a mistake the pipe is only one inch so i made a piston for it and now all i need is the end cap and valve and its done

14 Replies

2864 Views

Last post by 666lucky693
Sun Jul 01, 2007 8:13 pm
Sprinkler Valve Timer

Last post by pyrojoe
Replies: 14
by pyrojoe » Sat Jun 23, 2007 10:39 am

First post

Hi guys. I have been wanting to build an automated tennis launcher for some time now. I know I could just go out and buy one, but that takes away the...

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Thanks for the help guys. I think I am going to try to use a modified sprinkler valve with a pop-off valve as the pilot. Correct me if I am wrong...

14 Replies

3611 Views

Last post by pyrojoe
Sun Jul 01, 2007 4:55 pm
Burst Disc Mortar

Last post by noname
Replies: 13
by noname » Sun Apr 15, 2007 2:10 pm

First post

Well, this is just a burst disc cannon, and unfortuneately it's stronger than the barrel sealer 4 times its size.
Chamber: 1 foot of double layered 2...

Last post

Read my post, the one that's right above yours.

13 Replies

3031 Views

Last post by noname
Sat Jun 30, 2007 7:38 pm
my first pneumatic. now with breech loader.. damage shots!!!

Last post by SpudBlaster15
Replies: 22
by tylerthetatertosser » Mon Jan 22, 2007 9:38 pm
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this was my first gun leave your comments about it it was constructed of pvc and barrel is half inch and chamber is 1.5 inch

my gun

sprinkler...

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Lorem ipsum dolor sit amet, consectetur adipiscing elit. Cras nec placerat erat. Vivamus dapibus egestas nunc, at eleifend neque. Suspendisse...
22 Replies

11619 Views

Last post by SpudBlaster15
Sat Jun 30, 2007 2:26 pm
GGDT Problems

Last post by Jolly Roger
Replies: 8
by Jolly Roger » Fri Jun 29, 2007 10:22 pm

First post

I don't know how many others out their have noticed this as well but when using the GGDT program to find out some figures on my cannons, I find it...

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Cool well that explains heaps. Cheers guys. Just using it for the first time. Seems to be pretty handy by the sounds of things. Again thanks guys.

8 Replies

1649 Views

Last post by Jolly Roger
Sat Jun 30, 2007 10:05 am
Help me work some stuff out... Bolt action..

Last post by socoj2
Replies: 3
by socoj2 » Fri Jun 29, 2007 9:25 am

First post

Again another paintball launcher thread... I am trying to duplicate this launcher..

Air source

68 CI/ 4500 PSI compressed Air Tank.

needs....

Last post

NM. i found the correct solenoid and how to use it to discharge a QEV..

now for some math..

24 inch barrel
22 CU chamber
100 PSI

Gets me about 260...

3 Replies

1161 Views

Last post by socoj2
Fri Jun 29, 2007 10:25 pm
Question about my fill valve

Last post by subterranean
Replies: 17
by Pilgrimman » Thu Jun 28, 2007 2:09 pm
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Oh boy! My first post!

I have a valve from an auto parts store, and it looks like a schraeder (God I hope I spelled that right :D ) valve, in terms...

Last post

wal-mart baby! all of the stores near me carry alot of them check it out!
17 Replies

5580 Views

Last post by subterranean
Fri Jun 29, 2007 9:27 pm
Mounting barrel support question

Last post by Flying_Salt
Replies: 5
by Flying_Salt » Fri Jun 29, 2007 3:03 pm

First post

For my marble sniper I'm making a single barrel support much like the ones on the fish killer but because of the way my fitting (seen below) is...

Last post

I might in the future, but as of now it fits tightly and I can pick up and move it around without the tee moving around.

5 Replies

1648 Views

Last post by Flying_Salt
Fri Jun 29, 2007 7:19 pm
semi-auto or bolt action

Last post by knappengineering
Replies: 25
by knappengineering » Wed Jun 27, 2007 12:20 pm
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I was thinking of making a gun that is semi-auto. It will be hooked up to a compressor for constant air pressure, but I don't know how to make the...

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Ok, I'll have to go to the store and look for some copper pipe then. :(
25 Replies

6866 Views

Last post by knappengineering
Fri Jun 29, 2007 6:51 pm
valuve

Last post by hi
Replies: 1
by xops007 » Fri Jun 29, 2007 6:10 pm

First post

what is a pilot valve???? could anyone show me a pic ?

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pilot valves dont exist. the pilot is part of a piston valve. it is the area behind the piston.

when you release the pressure in the pilot area, the...

1 Replies

774 Views

Last post by hi
Fri Jun 29, 2007 6:16 pm
help!!!!!!!!!!!!

Last post by hi
Replies: 2
by xops007 » Fri Jun 29, 2007 1:56 pm

First post

i am a newbie at making air cannons... i made on with a 2 liter bottle and i have a butterfly valve for a trigger and i was wondering if someone...

Last post

you posted the exact same thread twice.

2 Replies

1013 Views

Last post by hi
Fri Jun 29, 2007 4:03 pm
help!!!

Last post by Pete Zaria
Replies: 9
by xops007 » Fri Jun 29, 2007 1:42 pm

First post

i am a newbie at making air cannons... i made on with a 2 liter bottle and i have a butterfly valve for a trigger and i was wondering if someone...

Last post

Topic moved.

9 Replies

1891 Views

Last post by Pete Zaria
Fri Jun 29, 2007 3:37 pm

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