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

909875 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

446271 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

398742 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

621385 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

329471 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

78992 Views

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

Topics

Weekend project design.

Last post by El Chupacabras
Replies: 20
by El Chupacabras » Fri Feb 01, 2013 9:52 pm
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Hi everybody, this is my first post here, so have as much mercy as possible please.
Ok as a curious person, I found a post on the web Piston Valves...

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Ok guys, I went to the tank factory, and my friend calculated the stress factors and all that for the shock absorbers and they don't pass, so that...
20 Replies

6868 Views

Last post by El Chupacabras
Tue Feb 05, 2013 12:31 pm
Titanium Co-Axial

Last post by sagthegreat
Replies: 7
by sagthegreat » Sat Feb 02, 2013 4:42 pm

First post

Hello guys, im back from the dead, and have a plan for this summer's project. I was thinking of a small .22/airsoft caliber coaxial, but made from...

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Ok, but if delrin only seals at high pressures, how will i bring the gun to high pressure if it needs high pressure to seal? (get what im sayin)

7 Replies

2928 Views

Last post by sagthegreat
Mon Feb 04, 2013 7:15 pm
JSR's awsum xbow airgun

Last post by iloveairguns
Replies: 24
by iloveairguns » Sun Jan 27, 2013 3:12 pm
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JSR, I lately noticed your cool crossbow that works in the same way (well almost) than the spring piston airguns, I'm gonna make a same type of...

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Hey i just got a great idea, when i was thinking that hot glue is very good for all sorts of casting, then i got the idea to cast my own hot glue...
24 Replies

10195 Views

Last post by iloveairguns
Sun Feb 03, 2013 8:50 am
Question on using co2 cartridges as power source

Last post by biged
Replies: 9
by drmoreau » Tue Jan 29, 2013 11:31 am

First post

Greetings all! I'm new to the forum and want to jump right in.

I am the commanding officer of a Stargate fan group and we are working on a pneumatic...

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Calc chamber size into cubic inches:

Radius * Radius * PI * Length

All 12 Grams of CO2 @ 70 degrees

6 Cubic inches 700 psi
7 Cubic inches 600 psi...

9 Replies

7492 Views

Last post by biged
Wed Jan 30, 2013 8:07 pm
Simple coaxial shotgun

Last post by far_cry
Replies: 16
by Marffy » Wed Nov 28, 2012 11:43 pm
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So i finally finished my muzzle loading piston air gun. I've only taken it to 150psi but its got some good power, can't wait to bump up the...

Last post

nicely built and good stock,however the seam inside the 3/4 pipe make's
slower open time specially with that pilot valve.

what i suggest is ,put 3/4...
16 Replies

9904 Views

Last post by far_cry
Tue Jan 29, 2013 11:44 pm
2" piston valve or dual sprinkler valve?

Last post by MrCrowley
Replies: 24
by Nick481 » Mon Jan 28, 2013 3:40 pm
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Hey spudfiles,
I have recently built a 1 inch jar top sprinkler valve golf ball cannon. The sprinkler valve is piloted by a blowgun via a vinyl air...

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My only worry would be how thin it is. If you use some pipe to sleeve over it, you're decreasing the flow around the barrel and lowering the ratio of...
24 Replies

11083 Views

Last post by MrCrowley
Tue Jan 29, 2013 6:39 pm
Solving pump-pistol issues

Last post by jackssmirkingrevenge
Replies: 46
by Brian the brain » Mon Jan 07, 2013 2:55 pm
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Lately I have been pondering over some exotic idea's.

One came from my desire to build a compact pump pistol.
While an integrated pump offers free...

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Going 9-ish mm would probably up the fun quite a bit.

Fun, well... haven't shot the Monsoon on a proper range literally in over a year, and that's...
46 Replies

15622 Views

Last post by jackssmirkingrevenge
Tue Jan 29, 2013 1:55 pm
Piston valve cannon

Last post by jackssmirkingrevenge
Replies: 3
by yodabeast14 » Sun Jan 27, 2013 10:17 pm

First post

Hi everyone, this is my first post on spud files. Im no stranger to spuding though. I hope to post some pictures of my previous works soon. I was...

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Very nice work^^^^^^^ :D

As is the rest of the rifle ;)

3 Replies

2148 Views

Last post by jackssmirkingrevenge
Tue Jan 29, 2013 5:05 am
Slide Check Valve Leaking

Last post by jackssmirkingrevenge
Replies: 8
by moonmaster » Sun Jan 27, 2013 2:29 pm

First post

I recently purchased a qev and slide check valve for use on a semi-auto. The qev works fine, but the slide check valve leaks when under pressure in...

Last post

In the meantime this chart is a useful reference:

8 Replies

2666 Views

Last post by jackssmirkingrevenge
Sun Jan 27, 2013 5:35 pm
Building my first 'cannon'

Last post by Oxy
Replies: 4
by Oxy » Thu Jan 24, 2013 12:50 pm

First post

Hey guys.

So I've done a little research for a project I'm doing in school, and to be different I decided to make a pneumatic cannon. Now I've...

Last post

Thanks guys, I'll take a look at those threads :)

4 Replies

2223 Views

Last post by Oxy
Sun Jan 27, 2013 10:03 am
New homemade gun and stock (before staining), just finished!

Last post by iloveairguns
Replies: 21
by DaxSF » Wed Jan 23, 2013 8:53 am
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Hey guys,

My last air gun jammed so I decided to make a new one. I tried ordering a stock from amazon but it got stuck in customs for some reason,...

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Woah quick reply, well cool if your gonna make it a bullpup and a pic would be nice of the front, and what type of trigger system does it have? Is it...
21 Replies

12681 Views

Last post by iloveairguns
Sat Jan 26, 2013 10:01 am
PCP Airgun & valve ideas??

Last post by auxiliary
Replies: 21
by iloveairguns » Sun Jan 20, 2013 7:15 am
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So im gonna build a pcp airgun. At least a 2 shot. And i need a simple valve for the gun, any tutorials? and the whole gun, i need info on that too....

Last post

This seems too obvious...

Maybe it's a joke.

Or a test...
21 Replies

7315 Views

Last post by auxiliary
Wed Jan 23, 2013 7:18 pm
My project - HPA powered SMG for .50 lead balls

Last post by jackssmirkingrevenge
Replies: 16
by Schlauncha » Fri Oct 12, 2012 5:42 am
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Hello. First post here, so let me give a brief background. I am into guns, and having shot various machine guns in the Army, I sure would enjoy being...

Last post

Just wanted to follow up, this Air Ordinance SMG .22 is great, my ballistic gel test showed approximately 5 inches of penetration at 50 feet, which...
16 Replies

10343 Views

Last post by jackssmirkingrevenge
Wed Jan 23, 2013 9:30 am
Copper Marble Cannon

Last post by jackssmirkingrevenge
Replies: 84
by cometboy » Tue Nov 15, 2011 12:49 pm
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I am sorry in advance if this is a well worn topic, but I would like some help in finding a well documented design for a copper cannon that would...

Last post

HAHA! Love how the eyes come off intact, brilliant!
84 Replies

27936 Views

Last post by jackssmirkingrevenge
Tue Jan 22, 2013 6:41 pm
Help with piston in coaxial QEV (never encountered this b4)

Last post by jsefcik
Replies: 14
by DaxSF » Tue Jan 22, 2013 2:53 pm

First post

Hi,

Apparently I have a problem with my QEV. The piston I tried making out of epoxy didn't work out too well for some reason, so I stuck to my good...

Last post

Hes has two of my valves making pistons for em:)

14 Replies

7719 Views

Last post by jsefcik
Tue Jan 22, 2013 6:39 pm
Using a QEV with the chamber and the supply as one ?

Last post by evilvet
Replies: 15
by evilvet » Sun Jan 20, 2013 11:31 pm
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I am now the proud owner of a basic eBay QEV, furthering my knowledge of pneumatic launchers for high speed photography here in wonderful land of Oz....

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Thanks to all who replied, I will do some testing and advise the result.

Cheers
15 Replies

9004 Views

Last post by evilvet
Tue Jan 22, 2013 5:33 pm
check valve needed in piston

Last post by jsefcik
Replies: 6
by jsefcik » Thu Jan 17, 2013 8:47 pm

First post

I was looking at my piston ( I didnt make it) nd there is a tiny hole drilled towards the top of it. And inside the coupler there is a washer with a...

Last post

You wont see that much of a difference, I M O the sanding drum is the best way to go. You dont have to alter it and its pretty much its own...

6 Replies

2087 Views

Last post by jsefcik
Sat Jan 19, 2013 7:55 am
Sprinkler Valves?

Last post by Zeus
Replies: 2
by PhanBoy » Sat Jan 19, 2013 2:47 am

First post

Hi
I'm planning to build my own pneumatic gun using this instructable

But since I'm in Australia, I can't find any of the two sprinkler valves...

Last post

Most Sprinkler valves from Bunnings will do the trick, this fella must be smoking something if he thinks only certain sprinkler valves are good for...

2 Replies

1291 Views

Last post by Zeus
Sat Jan 19, 2013 6:00 am
For Sale: Never-used SGTC Supah Valve-Plus/other SGTC parts

Last post by 8tonsemi
Replies: 13
by carl_lawhon » Sat Nov 10, 2012 4:13 pm

First post

Hi fellow spudders,

I have a Spudtech Supah-Valve plus, a Spudtech dual sprinkler valve system, and two four-foot sections of Sch. 80 rifled pipe....

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How long are each of the barrels?

Also very interested in the Supah valve :lol:

updated photos and dates would be nice just to make sure
4 feet...

13 Replies

11304 Views

Last post by 8tonsemi
Wed Jan 16, 2013 6:49 am
First Design, T-shirt Cannon, feedback on my initial design.

Last post by c11man
Replies: 55
by garybdavis » Sun Nov 04, 2012 2:58 pm
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I’m starting my first built which will be a pneumatic t-shirt cannon. After a few days of reading through various builds in this forum here is what...

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The purple paint really gets me. Amazing work on the launcher, even is designed for non destructive purposes :shock:

and with that carrying case,...
55 Replies

20129 Views

Last post by c11man
Wed Jan 16, 2013 12:58 am
non pre-pressured copper cadridge...

Last post by MRR
Replies: 3
by quark1980 » Mon Jan 14, 2013 11:56 am

First post

after my first sucssesfull build, a 15mm ID single shot, Qev gun, i wanted to try something new...

i cant say i already have seen something around...

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Not exactly what you have in mind but the ejection system might be of interest.

3 Replies

2061 Views

Last post by MRR
Mon Jan 14, 2013 2:48 pm
Awsome regulator leading to new project

Last post by wyz2285
Replies: 16
by wyz2285 » Fri Jan 11, 2013 3:32 pm
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Well, I bought this , cost me 42 euros and something.
Totally worth it! Awsome regulator, the LCD shows both in-tank pressure and output pressure and...

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No no, I'm thinking about something new, basically I want minimum dead space as possible so I'm hoping to find a valve assembly witch the output port...
16 Replies

7132 Views

Last post by wyz2285
Sun Jan 13, 2013 5:11 am
Where to find check valves?

Last post by acs2997
Replies: 13
by acs2997 » Sat Jan 12, 2013 10:00 am

First post

Hello all,
I'm trying to find small check valves that I can put into a 2 piston, but everywhereive gone, the check valves are larger than my actual...

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Alright. I'll play around with it a little bit, I'll see what works and what doesn't. Thanks for the input, I've had an experience with accidental...

13 Replies

6488 Views

Last post by acs2997
Sat Jan 12, 2013 7:17 pm
New Eclipse 40mm Operation VIDEO

Last post by PVC Arsenal 17
Replies: 24
by Solar » Mon Aug 27, 2012 4:16 pm
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24 Replies

10083 Views

Last post by PVC Arsenal 17
Sat Jan 12, 2013 5:10 pm
Simple Valve Design

Last post by jackssmirkingrevenge
Replies: 10
by Rand0mK1w1 » Thu Jan 10, 2013 6:42 am

First post

Hi!

I'm looking to make my first 'real' Air rifle (one that doesn't use a ball valve)

I don't really want to us a modded sprinkler valve or a QEV...

Last post

Less than $20 posted.

10 Replies

3283 Views

Last post by jackssmirkingrevenge
Sat Jan 12, 2013 9:48 am

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