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

900264 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

437707 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

371930 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

615590 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

327601 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

78044 Views

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

Topics

ball valve vs. sprinkler valve

Last post by iknowmy3tables
Replies: 16
by pmalone » Mon Jul 21, 2008 10:43 am
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Which would be more effective and have more air flow: a 1.5 ball valve or 1 modded sprinkler valve?

Thanks in advance

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just note that ball valves arn't always infeior, usually the projectile leaves the barrel before it's fully open, but on really larger systems it...
16 Replies

3844 Views

Last post by iknowmy3tables
Thu Jul 24, 2008 9:27 pm
AT4...

Last post by Mr.Sandman
Replies: 11
by HardDog » Tue Jul 22, 2008 8:17 pm

First post

I'm a new guy here, and luckily I found this place trying to find build plans for my AT4. I've been searching relentlessly trying to find plans/ideas...

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you could also do what this one guy on instructables did and put one of those co2 airsoft m203 shells and you'd be all set because all you would have...

11 Replies

3132 Views

Last post by Mr.Sandman
Thu Jul 24, 2008 8:50 pm
Ring pool pump compressor

Last post by psycix
Replies: 12
by iisthemuffin » Wed Jul 23, 2008 11:16 pm

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I have one of those big ring pools that is no good. I was thinking of taking the pump and making some kind of compressor. It says it pumps 780...

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Due to the low density of a gas compared to liquids, centrifugal pumps do not work properly with air.

12 Replies

3730 Views

Last post by psycix
Thu Jul 24, 2008 5:53 am
Fire extinguisher and JB weld MAX psi?

Last post by auxiliary
Replies: 16
by auxiliary » Wed Jul 23, 2008 7:02 pm
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I am replacing the 2 PVC tank on my pneumatic rifle with hopefully a fire extinguisher tank. It is not a CO2 fire extinguisher, it is just a KIDDE...

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Thanks a lot! I think I'll wrap some foam or something around it to protect the JB weld... In a couple of days I will post the gun that's using this...
16 Replies

6572 Views

Last post by auxiliary
Thu Jul 24, 2008 12:29 am
has anybody worked with this before

Last post by iisthemuffin
Replies: 3
by dudeman508 » Wed Jul 23, 2008 11:55 pm

First post

I needed a regulator to attach to a gun i already built and for a one im making, i looked all over for a regulater and i found one in a place i...

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Ah well that puts a whole different perspective on it. I am actually looking into getting one myself. So i can screw in a paintball co2 tank if it...

3 Replies

1007 Views

Last post by iisthemuffin
Thu Jul 24, 2008 12:21 am
How about a Steam Powered Pneumatic?

Last post by SpudFarm
Replies: 27
by newbmatic » Mon Jul 21, 2008 7:30 pm
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Well yesterday I was thinking really hard about something new. So, I then came up with a steam powered pneumatic. This is just random idea but i...

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and steam has low densety of what i can remember from my plans of making one (the speed of sound if high in the hot water vapors) but i did not want...
27 Replies

12319 Views

Last post by SpudFarm
Tue Jul 22, 2008 6:49 pm
Custom paintball gun ideas

Last post by paaiyan
Replies: 28
by paaiyan » Mon Jul 21, 2008 10:37 am
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So I'm going to try building a custom paintball gun in the near future. I'm going to try to make it very nice. Definitely going to be going with a...

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Well those I'd probably have to screw in, the great thing about 12 grams is you just plug and play, so to speak.
28 Replies

5055 Views

Last post by paaiyan
Tue Jul 22, 2008 3:54 pm
radiator valve

Last post by trollhameran
Replies: 2
by trollhameran » Tue Jul 22, 2008 3:01 pm

First post

I was looking through my dads scrap plumbing parts today and I found loads of old radiator valves, and if you look inside them there basicaly a...

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yeah thats one, you have to take off the temperature thing the threaded bit inside

2 Replies

569 Views

Last post by trollhameran
Tue Jul 22, 2008 3:16 pm
Semi/Full-auto inline design, need feedback.

Last post by jackssmirkingrevenge
Replies: 16
by Leonard » Sat Jul 19, 2008 12:12 pm
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Good day!
After too many hours trying to get the blow-forward bolt to work properly, i have only achieved my goal partially, as you can see in this...

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Please provide me with a link, i'd be happy to take a look at your design.

I believe he's referring to this idea
16 Replies

6003 Views

Last post by jackssmirkingrevenge
Tue Jul 22, 2008 11:50 am
12 volt air compressor possibilities

Last post by POLAND_SPUD
Replies: 13
by Bando_Red » Sun Jul 20, 2008 11:58 pm

First post

Noob here.I found a cheap 8 in 1 car vacuum and one of the more useful things it is is a 12 volt compressor.Now I was under the impression you used a...

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yeah but you can use a floorpump whenever and wherever you want to..

are pumping to high pressures or a high volume chamber 12V compressors are not...

13 Replies

2907 Views

Last post by POLAND_SPUD
Tue Jul 22, 2008 1:52 am
My piston pilots but no air comes out of barrel

Last post by iisthemuffin
Replies: 19
by iisthemuffin » Mon Jul 21, 2008 10:29 pm
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I know thats impossible but something weird is happening. I pump up the gun and i try to pilot it. the air poofs out the back and nothing happens. So...

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Ive greased my piston in vaseline several times. I believe Crowley is right about the pilot valve.
19 Replies

2930 Views

Last post by iisthemuffin
Tue Jul 22, 2008 1:14 am
Insomniac's First piston gun!!!

Last post by Insomniac
Replies: 5
by Insomniac » Mon Jul 21, 2008 6:23 am

First post

After seeing some of the mini coaxials posted lately, I decided to get off my ass and make one.

I originally intended this gun to be fired via a...

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The pipe itself is threaded, but I've found a solution. One of the pistons fits so well it refuses to come out one end of the pipe because of a tiny...

5 Replies

1430 Views

Last post by Insomniac
Mon Jul 21, 2008 11:22 pm
CO2 Tire Inflater

Last post by blind909
Replies: 6
by The_Kangsta » Fri Jul 18, 2008 9:33 pm

First post

Hello

I am planning a simple pill bottle cloud for .117 bbs, and i was wondering if any of you have any experience working with a co2 tire inflater...

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I'v used this kind of inflator before. The inflator, if held down until it is depleated (approx. 6-8 secs), will get your bottle terribly cold and...

6 Replies

2000 Views

Last post by blind909
Mon Jul 21, 2008 10:44 pm
How tight should my piston be?

Last post by iisthemuffin
Replies: 28
by iisthemuffin » Sun Jul 20, 2008 2:03 am
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Im trying to make a mini coaxial piston gun. The piston is pretty much a perfect fit in my opinion. There is just a tiny gap bettwen it in and the...

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Now my piston is piloting. But only when im pressurizing. So kind of a misfire. What does this mean? Im pumping too high?
28 Replies

5071 Views

Last post by iisthemuffin
Mon Jul 21, 2008 9:59 pm
My new 1'' sniper rifle

Last post by mister pointy
Replies: 7
by mister pointy » Mon Jul 21, 2008 8:44 pm

First post

I finally finished my sniper rifle so here it is.

2'' chamber, 1'' bolt action barrel, 1'' modified sprinkler valve.

I made the bolt action barrel...

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Thanks for the compliments.

i have kept my barrels a little short on my other guns for the sake of portability and ease of use. This gun is...

7 Replies

2423 Views

Last post by mister pointy
Mon Jul 21, 2008 9:54 pm
my new little shotgun

Last post by blind909
Replies: 3
by mister pointy » Mon Jul 21, 2008 8:19 pm

First post

I made this little gun about a month ago, just haven't gotten around to posting it. I use it to shoot paintballs and airsoft pellets and whatever...

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Nice, You should paint it though, and add a foregrip.
@FishBoy, yes, they are just as easy, And in fact, the 3/4 inch and 1 inch valve tops are the...

3 Replies

1546 Views

Last post by blind909
Mon Jul 21, 2008 8:30 pm
Mitch's All Metal BB Gun

Last post by Mitchza89
Replies: 40
by Mitchza89 » Tue Sep 18, 2007 10:27 pm
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Gday guys,

After many months of dicking around, totally broke and just plain lazy, I've finally made my bb gun. This is only the first version of...

Last post

It's a small high pressure pump. Well done on kicking up a seriously old topic :D.
40 Replies

13245 Views

Last post by Mitchza89
Mon Jul 21, 2008 3:05 am
Need Qev Help

Last post by frankrede
Replies: 8
by dudeman508 » Fri Jul 18, 2008 9:37 pm

First post

I looked all over the internet for instructions on how to make a qev ad i found to 2 videos on youtube but they were in french and it looks kinda...

Last post

@Frankrede

Is this the QEV you used on your Cannon For A Friend ?

That would be great if it is, because using the store locater I've just...

8 Replies

3059 Views

Last post by frankrede
Mon Jul 21, 2008 12:22 am
my air cannon keeps leaking plz help

Last post by nivekatoz
Replies: 7
by Crna Legija » Sun Jul 20, 2008 6:24 am

First post

i have a fire extinguisher and its just a bit bigger then 1/2 inch and it keeps leaking i put lost of PTFE tape and still leaks at around 100 psi can...

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If I were you ,I would have someone weld a reducer on it that has npt threads. You could also try to find a steel or aluminun oxygen tank and have...

7 Replies

2512 Views

Last post by nivekatoz
Sun Jul 20, 2008 1:29 pm
1st pneumatic- Irvine SS

Last post by Crna Legija
Replies: 18
by Jacksa26 » Sun Mar 02, 2008 5:02 am
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Hey folks!

Ive been lurking around Spud Files for the past few months now, so i thought it was about time to sign up and share my first completed...

Last post

wow that looks so nice and i like how made different cambers i cant say i've seen that b4
18 Replies

9077 Views

Last post by Crna Legija
Sun Jul 20, 2008 6:35 am
where to get refrigerator compressors

Last post by Brian the brain
Replies: 15
by VH_man » Thu Jul 17, 2008 9:33 pm
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I have a sudden urge to construct one of these, but i have a problem...

the only way for me to get one is to:

1. Sabotage my refrigerator
2....

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Since I recently lost mine...to...well..the fact it died on me...I will be forced to get a new one.
A collegue of mine GAVE me his 80 liter...
15 Replies

4629 Views

Last post by Brian the brain
Sun Jul 20, 2008 3:43 am
with a piston or without a piston

Last post by MrCrowley
Replies: 6
by drunkii » Sat Jul 19, 2008 9:39 am

First post

on this pic you see a pneumaticp gun
but what is the difference with the piston , or without the piston?
goes it faster with piston ?

and can...

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Sorry for the diagram but I really didn't want 13year old kids running around the streets with a golfball gun, there is enough information in my...

6 Replies

2175 Views

Last post by MrCrowley
Sat Jul 19, 2008 5:22 pm
Not a cannon.. But a part of it.. it makes it... quiter.

Last post by FishBoy
Replies: 5
by Necrosis » Sat Jul 19, 2008 6:27 am

First post

Yes it's a... Supressor!

It's machined with springs and baffles.. And no pvc involved!
It works like a charm too.

What do you guys think?

Oh...

Last post

nice job, but I couldn't get either of your links to work

5 Replies

1508 Views

Last post by FishBoy
Sat Jul 19, 2008 10:03 am
Home-Made Qev Rifle with .40 pellet

Last post by blind909
Replies: 50
by spike33 » Thu Jun 26, 2008 6:13 pm
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Hi , i am clement , a 17 years old French boy who love build home made airguns

i'll show you a basic rifle with a home-made qev ( )

its a gun with...

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that is one nice gun you got there. if only i could find a blowgun like that.

you should consider putting a air tank on your QEV sniper .

He...
50 Replies

29624 Views

Last post by blind909
Fri Jul 18, 2008 8:45 pm
Coaxial piston questions

Last post by iisthemuffin
Replies: 11
by iisthemuffin » Wed Jul 16, 2008 7:30 pm

First post

After looking at my sprinkler valved cannon, i have seen how simple it is to build a coaxial cannon.

I was wondering if there were any disadvantages...

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I never said i was exempt from that. And like i had said, i DID try searching and i looked at many things and still had many un answered questions....

11 Replies

1868 Views

Last post by iisthemuffin
Fri Jul 18, 2008 4:02 pm

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