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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First post

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

1201221 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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First post

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...

Last post

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

604747 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

857642 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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First post

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...

Last post

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

1020551 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...

Last post

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

392524 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

100017 Views

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

Topics

Multi-shot candy launcher

Last post by mark.f
Replies: 3
by voi9viper » Sat Nov 07, 2015 10:23 pm

First post

I need to build a few candy launchers, which will use a sabot (plastic cup) and be fired veriically to avoid any gobstopper projectile injuries, or...

Last post

There is an example of a hybrid using homemade solenoid valves for fueling but they're not three ways. I suppose it wouldn't be too difficult to roll...

3 Replies

3006 Views

Last post by mark.f
Thu Nov 12, 2015 1:33 am
1/2" QEV + 1/2" Slide-valve - first multi-shot build problem

Last post by voi9viper
Replies: 5
by shrimp » Tue Jan 06, 2015 7:26 am

First post

Greetings everyone, short time lurker, first time poster here.

In the past I have built a few combustion cannons and couple of sprinkler valve...

Last post

I made one of these from comercial parts for the QEV and slide valve. I don't know how long your barrel is, but I think about 6 of 2 PCV pipe, one...

5 Replies

4783 Views

Last post by voi9viper
Mon Nov 09, 2015 8:10 am
Japan Made Pneumatic Cannon "Exhaust Cannon"

Last post by wyz2285
Replies: 11
by Shyasuna » Sat Oct 24, 2015 2:59 pm

First post

Hi, all. I am a grad student of nuclear engineering in Japan. And I am an administrator of UZUMA HEAVY INDUSTRIES.

I'm very glad to see this...

Last post

The MK.12 looks like a pengun :lol: Jack would be proud :D
Of course a coupling would be a better pilot than a schrader valve. Still, very impressive...

11 Replies

26370 Views

Last post by wyz2285
Mon Nov 02, 2015 12:59 pm
New Member need help with his first air riffle

Last post by cammyd32
Replies: 3
by playernpc » Mon Oct 26, 2015 11:23 am

First post

Hey Guys
im new to your forum. I hope that i dont break any rules...
I want to build a multishot semi automatic air riffle. For this peoject i want...

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How big should the chamber be? how long is a piece of string?
This question depends on how much power you want from your launcher, try using a...

3 Replies

3104 Views

Last post by cammyd32
Mon Oct 26, 2015 5:41 pm
New Member - First Cannon - 2 inch L copper

Last post by ToasT
Replies: 6
by enkidu » Tue Oct 13, 2015 5:23 pm

First post

This is my first pneumatic. Specs are as follows:

Storage: 22 feet of 2 inch L copper at 160 psi
Barrel: 9 feet of 2 inch L copper, muzzle loaded...

Last post

I guess that asks an interesting question;
What is the most expensive 'home' cannon on this site? ('home' excludes the likes of VERA...)

6 Replies

4804 Views

Last post by ToasT
Mon Oct 26, 2015 7:17 am
Survey to help make better homemade water guns

Last post by btrettel

by btrettel » Sat Oct 24, 2015 1:15 pm

All, I haven't participated in this community for a while due to other time commitments. But I know there are a number of people who build water guns...

0 Replies

7064 Views

Last post by btrettel
Sat Oct 24, 2015 1:15 pm
8mm Bolt Action QEV

Last post by PAweaponTech
Replies: 6
by vng21092 » Sat Oct 03, 2015 9:04 pm

First post

Alright guys I'm VERY excited and proud to present to you my FIRST ever BOLT ACTION RIFLE. I've made several attempts in the past but I always gave...

Last post

Another solution to your projectile falling into air supply is to have the air come through the bolt instead, but that raises other issues.

6 Replies

9964 Views

Last post by PAweaponTech
Mon Oct 12, 2015 5:21 pm
Improved rifle, upcoming

Last post by vng21092
Replies: 5
by Doodmens » Fri Oct 02, 2015 3:27 pm

First post

Hi guys,

working on the 4th gun so far now. I'm in uni right now so haven't got as much time as I used to, but things are still moving.
Got most of...

Last post

I guess spudfiles reduces the size of photos when they're added as attachments rather then from a source

5 Replies

3572 Views

Last post by vng21092
Sun Oct 04, 2015 10:25 am
Reloading Problems, semi automatic airgun

Last post by BramR
Replies: 4
by BramR » Sat Aug 22, 2015 7:20 am

First post

Hi guys,

So i have come a long way since my last post. i've read a lot about pneumatic guns on this forum and that really helped. i checked out the...

Last post

Have you thought of a detent? Spring loaded ball detent are available as pre-made parts that you can just screw in:

That could work indeed. i'll...

4 Replies

10104 Views

Last post by BramR
Sun Oct 04, 2015 9:45 am
"Kugel Brecher" Paintball Tank Main Gun

Last post by wdr0
Replies: 6
by WTF-771 » Wed Sep 23, 2015 6:49 pm

First post

Hello all,

I have been creeping around the forum now for about 2 years now. As part of a project, namely a paintball tank we call Kugel Brecher , I...

Last post

I agree about the hose being a restriction, i would say if you have the room you could easily find a hose with more flexibility and sufficient...

6 Replies

4431 Views

Last post by wdr0
Fri Oct 02, 2015 11:56 am
T-Piston Airgun with Collapsible Stock

Last post by cowscankill
Replies: 6
by cowscankill » Fri Sep 25, 2015 2:24 pm

First post

Wow, two posts in one day. It's like I've risen from the dead.

Been browsing gun ideas again, now that I have most of my tools with me at university...

Last post

That folding stock is baller as hell! Nice job

Thanks! Had a hell of a time figuring out how to make it work.

6 Replies

6879 Views

Last post by cowscankill
Fri Oct 02, 2015 11:51 am
Cannon Proposal ( M136 AT4)

Last post by topelitemarine
Replies: 8
by topelitemarine » Thu Sep 17, 2015 5:48 am

First post

I am new to Spud Gun :D and I want to build an AT4 looking air cannon to use in airsoft game. My plan was to fire different type of ammo. Such as...

Last post

A sprinkler valve would do the job. As to controlling the impulse, that's a bit trickier.

Where can I buy a sprinkler?? Will they fit in my 7 cm...

8 Replies

4687 Views

Last post by topelitemarine
Sun Sep 20, 2015 7:29 am
safety levels using pvc Pipe

Last post by jsefcik
Replies: 3
by jsefcik » Sat Sep 19, 2015 8:11 am

First post

For us who have built cannons using pvc pipe as an air chamber, and i know they are as safe as you make them, and pvc pipe isnt like metal and cant...

Last post

Im just curious cause i built a compressor from an old fridge and i have 1 1/2 pvc chamber for my one small gun i wanted to see how high i could go...

3 Replies

5651 Views

Last post by jsefcik
Sat Sep 19, 2015 7:48 pm
Gas strut hand pump idea

Last post by zackass1
Replies: 6
by zackass1 » Wed Sep 16, 2015 2:32 pm

First post

Hi
Does any of you guys tried to use gas strut to build high pressure hand pump?
I need at least 130 bar (1900 PSI) but very small volume. So I think...

Last post

Thanks for link
It look like furniture gas strut (mine was car gas strut). I must think about it one more time.

6 Replies

3631 Views

Last post by zackass1
Sat Sep 19, 2015 3:14 pm
Idaho Howitzer - My first build ever!

Last post by jimmy101
Replies: 6
by Admiral Korax » Sun Sep 13, 2015 10:16 pm

First post

The best way to describe my first spud gun is to share the link:

Last post

Depends on the concentration and quantity of the chemicals being used, and the size of the chamber in which they are contained. Only up to a point....

6 Replies

3364 Views

Last post by jimmy101
Fri Sep 18, 2015 12:42 pm
Gas travel distance& efficiency

Last post by jackssmirkingrevenge
Replies: 10
by topelitemarine » Wed Sep 16, 2015 10:44 pm

First post

As you can see there are 2 cannon in my attachment. One has longer distance between air tank and barrel and the other is shorter. Which one is more...

Last post

The second is less efficient but there may be exceptions to this rule.

There was much talk of this but I didn't mention it as it tends to be...

10 Replies

9962 Views

Last post by jackssmirkingrevenge
Thu Sep 17, 2015 9:29 pm
Barrel length question with GGDT

Last post by air_dannon
Replies: 4
by air_dannon » Sat Aug 29, 2015 3:07 pm

First post

Hi,

I have a pen gun with a barrel sealing piston (okay, not really a pen ... more like a fat marker). I tried punching in the numbers for GGDT, but...

Last post

Not yet. I'll do that soon, hopefully with a video too.

4 Replies

3888 Views

Last post by air_dannon
Fri Sep 11, 2015 8:51 am
Air Cannon Firing Mechanisms

Last post by Fnord
Replies: 2
by MOO Tech » Thu May 21, 2015 10:16 am

First post

Most of the time when you are building an air cannon you want some way of firing it from the pull of a trigger. There are tons of ways this can be...

Last post

And pressure rated pipe to boot!

2 Replies

8761 Views

Last post by Fnord
Tue Sep 08, 2015 7:44 pm
Full Metal Airgun - Improved Version

Last post by jackssmirkingrevenge
Replies: 1
by Doctore » Wed Jul 29, 2015 2:56 pm

First post

Hello everyone. Again, simple and easy build. This is improved version of my older gun, but now it has bigger chamber and longer barrel.

Operating...

Last post

Simple but impressive, one of my first proper pneumatics was such a design. Have you considered a spring loaded ball valve for more consistent power...

1 Replies

2065 Views

Last post by jackssmirkingrevenge
Mon Sep 07, 2015 8:28 pm
Schrader valve as pilot; better options?

Last post by jackssmirkingrevenge
Replies: 1
by Doodmens » Tue Aug 18, 2015 12:35 pm

First post

Hi there,

I am desiging a new gun that has a chamber-fed QEV in it. I want the pilot part as compact as possible so I thought a schrader
vavlve...

Last post

With a well made piston setup - ie tight fitting piston and minimum dead space - the size of the pilot is not that important. A QEV with its piston...

1 Replies

1321 Views

Last post by jackssmirkingrevenge
Mon Sep 07, 2015 8:19 pm
Is 12,600 grains (1.8 Lb) to heavy for air cannon ammo?

Last post by Ragnarok
Replies: 4
by MOO Tech » Mon Sep 07, 2015 7:14 am

First post

I decided a little while ago that I would push the envelop a bit and see exactly how heavy of a round I could shoot out of my larger air cannon. It...

Last post

I would guess mine would be able to get a 1/2 pound projectile going upwards of 400 FPS.
200-250 fps is more likely. While the projectile being a...

4 Replies

2853 Views

Last post by Ragnarok
Mon Sep 07, 2015 8:12 pm
Coaxial Piston Cannon

Last post by KAMERADEN
Replies: 9
by thedeathofall » Tue Jun 02, 2009 1:30 pm

First post

Okay so this is the first gun i have posted, although not the first made. It is a coaxial piston cannon. It is the first working piston cannon i have...

Last post

Okay so this is the first gun i have posted, although not the first made. It is a coaxial piston cannon. It is the first working piston cannon i have...

9 Replies

6750 Views

Last post by KAMERADEN
Fri Sep 04, 2015 12:30 pm
Upcoming 'flintlock' style pistol

Last post by air_dannon
Replies: 9
by Doodmens » Sun Jun 21, 2015 5:26 pm

First post

Hiya folks,

I'm using the last few weeks of the summer vacation to build myself some guns.
You might have seen my previous 'sniper rifle' thread,...

Last post

cool. can't wait to see it done.

9 Replies

5944 Views

Last post by air_dannon
Mon Aug 31, 2015 6:53 pm
I need help to build my first airgun

Last post by overpro_shooter
Replies: 3
by overpro_shooter » Sun Aug 23, 2015 11:39 am

First post

Hi.
I'm new here in this Forum.
At first i want to say that i think you are doing very great things and its a honor for me to join this club .
I'm...

Last post

At first Thank you, you've helped me very much so far
but can i use this here you can see in the pic, i hope you can see it.

I think its the same...

3 Replies

1991 Views

Last post by overpro_shooter
Fri Aug 28, 2015 7:47 am
Help determing FPS?

Last post by vng21092
Replies: 6
by vng21092 » Sat Aug 22, 2015 3:03 pm

First post

Hey guys, I just got finished putting together my 4.5mm x 24'' barrel and decided to test out the FPS. According to GGDT, I should be in the 950+...

Last post

So... I downloaded the app this morning and on the first shot, it gave me a reading of 635 FPS. Which I'd say is pretty O.K because my calculations...

6 Replies

3005 Views

Last post by vng21092
Mon Aug 24, 2015 5:15 pm

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Pneumatic Cannons

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