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...

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

1124922 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

552098 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

821106 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

966936 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

374841 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

92382 Views

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

Topics

Design in need of input

Last post by jackssmirkingrevenge
Replies: 17
by foilboy » Thu Oct 27, 2011 3:07 pm
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As I sat in class today I thought of this design for a air cannon. It's a coax piston cannon with a QEV hooked up so that the chamber side of the QEV...

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Never made it but you could exhaust directly to the barrel:
17 Replies

5912 Views

Last post by jackssmirkingrevenge
Thu Oct 27, 2011 11:03 pm
MinI marble Gun V1

Last post by Brian the brain
Replies: 29
by aaron181 » Fri Apr 10, 2009 12:41 am
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my marble gun :) took me like 2 minutes to make but its really powerful

:P its made out of hose clamps a few compressor fittings and 40ml end caps...

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Come on guys...

Clogging up the forum again huh... :roll:

Oh well..you've had your fun...
29 Replies

12433 Views

Last post by Brian the brain
Thu Oct 27, 2011 2:34 pm
Acetylene tank valve removal?

Last post by Technician1002
Replies: 9
by jmez1996 » Tue Oct 25, 2011 8:51 am

First post

I got an empty 16oz acetylene gas bottle to use as a air chamber on my next gun but it has an internal valve in the stem which stops the gas escaping...

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The tanks run about 125~160 PSI to the regulator. This is why it is important to use flashback arresters on the torch and use low gas pressure. I...

9 Replies

5271 Views

Last post by Technician1002
Wed Oct 26, 2011 6:53 pm
Feedback on my coaxial piston design

Last post by Superairrifle
Replies: 9
by Superairrifle » Mon Oct 24, 2011 5:45 pm

First post

Hay
This is my idea for my new airgun.(it's the 4. one i think...)

I just want to know what you think about it.

Blue: Air tank (bore 4cm 115cm long...

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I've got a 2*1*3cm big neodymium magnet :wink: hope it will be big enough 8)

sry 4 my not perfect English ;)

9 Replies

4127 Views

Last post by Superairrifle
Wed Oct 26, 2011 2:45 pm
Help modding a rain pro sprinkler valve

Last post by Dubz
Replies: 14
by Dubz » Wed Oct 26, 2011 8:40 am

First post

Hi guys I've read numerous posts in regards to modding sprinkler valves. But none have mentioned the rain pro valves. They have just a solenoid in...

Last post

:D all fixed the hole on the lid just had to be bigger thanks for the help

14 Replies

4685 Views

Last post by Dubz
Wed Oct 26, 2011 1:22 pm
Assistance in choosing a large air source

Last post by cammyd32
Replies: 30
by cammyd32 » Tue Oct 25, 2011 4:47 am
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In the world of spudding I am mainly an ideas man, I spend hours perfecting designs and CAD'ing them etc, very rarely do I actually make any of my...

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Eh, couple of check valves and a hand crank and you have a hand powered air pump.

that is a good idea, it would be very ghetto but it might just...
30 Replies

7396 Views

Last post by cammyd32
Wed Oct 26, 2011 5:04 am
Cheap 3 way valves?

Last post by Goats spudz
Replies: 28
by Goats spudz » Sun Oct 23, 2011 12:07 pm
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i want to make my gun semi auto i just cant find any 3 way dcv's in the uk, anyone know any good sites?

Last post

hehe, JSR thats funny :D
28 Replies

5526 Views

Last post by Goats spudz
Tue Oct 25, 2011 1:54 pm
Semi Automatic QEV Paintball Gun

Last post by Lockednloaded
Replies: 51
by Lockednloaded » Mon Feb 21, 2011 9:51 pm
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Still kind of a work in progress, but I thought I'd showcase it in its final stages

Specs and Features
o 3/4 QEV piloted by 1/4 Slide Valve
o...

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Thanks, a 6 shot mag dump may come tomorrow, so keep an eye on this thread

Also, anyone have any aesthetic tips? Ihave bondo, moldable plastic,...
51 Replies

26030 Views

Last post by Lockednloaded
Tue Oct 25, 2011 7:07 am
[help] So basically..is this how it works?

Last post by stoj
Replies: 21
by stoj » Mon Oct 24, 2011 10:52 pm
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I've been looking into making a marshmallow cannon lately and I've come to a standstill. I'm having trouble visualising/grasping the concept of the...

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I suppose if i do it that way, I don't have to go about converting the metal to PVC... (FYI I was going to drill the two way :D) ...and use metal for...
21 Replies

7511 Views

Last post by stoj
Tue Oct 25, 2011 7:05 am
solenoid valve

Last post by jackssmirkingrevenge
Replies: 9
by POLAND_SPUD » Thu Dec 11, 2008 5:00 pm

First post

I am a happy owner of this

my question is.... How am I supposed to connect everything to pilot the QEV and to have a seperate low pressure circuit...

Last post

Strona przedmiotu została przeniesiona do archiwum.
Więcej informacji o archiwizowaniu opisów przedmiotów.

Sounds rude :)

9 Replies

3279 Views

Last post by jackssmirkingrevenge
Sun Oct 23, 2011 11:39 pm
largest you can go with a hammer valve?

Last post by wyz2285
Replies: 8
by JDP12 » Fri Oct 21, 2011 12:29 am

First post

More just a thirst for knowledge question here..

whats the largest hammer valve you can make that is still effective? With BTB's new counterbalanced...

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I have saw that video long long ago, the Mrairshot (video owner) wasn´t very nice to me :roll: didn´t knew he was far_cry :x
but the valve looks...

8 Replies

2201 Views

Last post by wyz2285
Sun Oct 23, 2011 4:50 am
Using the barrel as the pump.

Last post by Demon
Replies: 9
by Demon » Sat Oct 22, 2011 4:44 pm

First post

Just thought of this.

The under-barrel pump rod pivot near the pump's head. This engages the pump rod in the barrel to compress the air.

The air...

Last post

The ammo is encased in a foam sabot, so I don't think there's any issue on that side.

9 Replies

2450 Views

Last post by Demon
Sat Oct 22, 2011 6:34 pm
QD copper barrel?

Last post by sharpshooter11000
Replies: 8
by sharpshooter11000 » Fri Oct 21, 2011 5:12 am

First post

Does anyone know a type of fitting for 22mm copper pipe that would let me detach the barrel without unscrewing compression fittings? Something kind...

Last post

So does that screw on to the compression fitting?

8 Replies

1782 Views

Last post by sharpshooter11000
Fri Oct 21, 2011 11:52 am
Problem with Coaxial Piston Valve - New problem on page 2...

Last post by pneumaticcannons
Replies: 27
by DaxSF » Wed Oct 19, 2011 5:09 pm
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Hi,
New here and working on my 2nd gun (first one had a normal ball valve, YouTube video of the old gun will be on the bottom of the topic).
I have...

Last post

he's an adult!!

MAAAAAAAAAAAAAAAAAAAAAAAAN!!!!!!!!!!!!!!!!
27 Replies

10140 Views

Last post by pneumaticcannons
Thu Oct 20, 2011 11:22 am
.25 Air rifle, Breech loaded, rifled barrel

Last post by POLAND_SPUD
Replies: 37
by cane toad » Mon Jun 27, 2011 12:43 am
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Hi all,

As a carry on from our previous attempt we decided to build another rifle, hopefully improved.

The priorities of this gun were accuracy...

Last post

Why not add a loading mechanism there ??

w8 a sec. got to use MSpaint
37 Replies

34216 Views

Last post by POLAND_SPUD
Wed Oct 19, 2011 3:36 pm
First gun

Last post by mattyzip77
Replies: 27
by EBB » Fri Oct 14, 2011 3:44 pm
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Hi this is my first post and my first gun me and my brother build.
Tested up to 6bar
We use a 12volt compressor for filling tires

Made out of...

Last post

No need for a new one, shine it up with some light grain sand paper or even a brillo pad, will look like new!!!!
27 Replies

8478 Views

Last post by mattyzip77
Tue Oct 18, 2011 1:25 pm
full auto QEV + relieve valve bullpup. with CO2 *UPDATE*

Last post by Goats spudz
Replies: 18
by Cosmic Muffin » Tue Sep 13, 2011 7:32 am
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ok so this is my plan, ive bought a 1/2 in QEV, 8mm braided line and push to connect 1/2in fittings, and a pressure washer gun off ebay. ive also...

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Actually got it when I was in school, nicked it from a compressor in metalwork. Search eBay they have a few varieties ;) ok thanks! ill have a look...
18 Replies

8159 Views

Last post by Goats spudz
Sun Oct 16, 2011 2:14 pm
Help with release valves..

Last post by evanmcorleytv
Replies: 17
by evanmcorleytv » Sat Oct 15, 2011 5:40 pm
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Hey.. I have been working on a rifle for about six months.. and I have decided to modify it.. again.. It's already been modified five times, and I...

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Also, I've been doing this for YEARS!! I've just never modified a European valve.. I have designs for semi automatic airsoft sniper rifles that could...
17 Replies

4748 Views

Last post by evanmcorleytv
Sat Oct 15, 2011 9:45 pm
Pneumatic Cylinder/Actuator

Last post by Goats spudz
Replies: 12
by Goats spudz » Sat Oct 15, 2011 12:32 pm

First post

Can anyone Come up with a cad drawing of a single action pneumatic cylinder? pretty please :D

Last post

ok thanks for teh help! :D i have drawn it in 2d with all the measurements! and my dad says he will give it to martin the machinist at his work, i...

12 Replies

6894 Views

Last post by Goats spudz
Sat Oct 15, 2011 4:02 pm
Burst disk problem.

Last post by warhead052
Replies: 21
by warhead052 » Tue Oct 11, 2011 2:02 pm
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I made a burst disk mortar with a 2 inch union, and my disks keep breaking at only 25 psi. I would like them to break at around 50-75 psi, but no...

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Ok. That's a good bit of info, so thank you! I will try, but it just started to get windy so I won't be able to shoot anything till it clears up a...
21 Replies

5166 Views

Last post by warhead052
Fri Oct 14, 2011 1:39 pm
Co2 Regulator Problem (KOBALT)

Last post by Gippeto
Replies: 1
by Lockednloaded » Thu Oct 13, 2011 9:23 pm

First post

I have this kobalt CO2 regulator for air tools. It's meant to regulate from 0-120psi, and I've had it for about a year. Recently though, it stopped...

Last post

Is there a stem or rod sticking out of the nut in the middle of the body? If yes...remove the nut to find the actual valve parts.

It leaks...

1 Replies

1540 Views

Last post by Gippeto
Thu Oct 13, 2011 9:31 pm
Piston valve help again

Last post by mattyzip77
Replies: 15
by Procrastinator » Tue Oct 11, 2011 1:09 am
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Hi again, I just finished my piston valve and gotten really bad results :( (100psi shooting a battery 3 metres) I thought the problem might be the...

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get rid of that hose dude and I bet your prayers will be answered, and if that dont work, a 1/4 inch ball valve to pilot it then, good luck..
15 Replies

4381 Views

Last post by mattyzip77
Tue Oct 11, 2011 9:42 am
Where can I find plans for a piston valve I can make?

Last post by Gun Freak
Replies: 11
by tumbler » Fri Oct 07, 2011 4:47 pm

First post

I deiced to make a pneumatic tennis ball launcher recently, and have been searching around the internet, and specifically this forum for information...

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It's all up now :) Hopefully many people will find it useful.

11 Replies

2722 Views

Last post by Gun Freak
Mon Oct 10, 2011 5:10 pm
easy way to semi auto

Last post by Gun Freak
Replies: 6
by wyz2285 » Fri Oct 07, 2011 12:47 pm

First post

Hi every body
I noticed that a lot of new members wants semi auto, and I saw a lot of explanations about slid valves and 3 ways. As I wasn´t able to...

Last post

I think it's a good idea! With a 1/4 ball valve it should be an easy trigger pull.

6 Replies

2457 Views

Last post by Gun Freak
Sat Oct 08, 2011 4:05 pm
The Hole Maker

Last post by jackssmirkingrevenge
Replies: 8
by apocavorme » Thu Oct 06, 2011 6:14 pm

First post

100 psig
1 meter barrel
1,5 liter chamber
16 liter secondary chamber
15,5mm projectile
16mm bore
bal valve with spring trigger

critics are...

Last post

Go for higher pressure, you will be impressed. Also a good spring loaded ball valve is a pretty fast valve, if done well it can keep up with a QEV....

8 Replies

3158 Views

Last post by jackssmirkingrevenge
Fri Oct 07, 2011 2:09 am

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