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

1662813 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...

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

752970 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

980890 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

1164080 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

465559 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

131273 Views

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

Topics

B2TB: sawed-off 35 bar repeater

Last post by Brian the brain
Replies: 37
by Brian the brain » Sat Jun 07, 2008 5:27 pm
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B2TB by BTB

Yes, it's finished!!

BAD 2 the Bone ( B2TB for short)

My latest creation..
Just short enough to be called a sawed-off ( kind of my...

Last post

Without this forum I'd never gotten this far. We all feed off each other. But thanks...you have seen this one right?
37 Replies

22403 Views

Last post by Brian the brain
Thu Sep 22, 2016 12:29 pm
CO2 LAUNCHER HELP (Newbie)

Last post by jackssmirkingrevenge
Replies: 3
by Sunshinejack » Sat Sep 10, 2016 12:55 pm

First post

Hello!

So I've never built one of these before but am feeling pretty inspired.

Looking to make something similar to this (scroll to last image):...

Last post

To go to wider diameters you'd need adapters that would lengthen it anyway.

Consider this though, if you shorten the pipe, you will have less...

3 Replies

1867 Views

Last post by jackssmirkingrevenge
Tue Sep 20, 2016 1:04 pm
basic fire extinguisher rifle/shotgun

Last post by jackssmirkingrevenge
Replies: 2
by aikirob » Sat Sep 17, 2016 2:21 am

First post

air rifle.jpg
you can see my basic fire extinguisher rifle here:
and a couple a more shots firing it here:

Its as simple as I could make it and...

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If you're looking for the pressures you could safely contain in that fire extinguisher tank, modifying an A/C or refrigerator compressor to pump air...

2 Replies

2934 Views

Last post by jackssmirkingrevenge
Tue Sep 20, 2016 1:01 pm
1000PSI Mini Monster Cannon ( Updated )

Last post by Suicideneil
Replies: 5
by Suicideneil » Mon Feb 22, 2016 10:36 pm

First post

aircannonthumb2.jpg Hello there, thought I would sign up and share my recent(ish) aircannon build.

As much as I enjoy seeing the large pvc builds,...

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Those photos look very professional

Nothing like a plain white or black background and a few lights to really improve the quality of photos.

In...

5 Replies

10139 Views

Last post by Suicideneil
Sat Sep 17, 2016 1:13 pm
Considerations to have when building a Coaxial Piston Cannon

Last post by jackssmirkingrevenge
Replies: 4
by Dig_Gil » Sun Sep 11, 2016 6:39 am

First post

I'm thinking about working on a Coax style launcher, obviously, but I wonder about what affects the efficiency of this kind of launchers. I've...

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This was one of my very first projects when all I had was syringes and epoxy, these days I would use proper o-rings and a balanced piston to reduce...

4 Replies

7144 Views

Last post by jackssmirkingrevenge
Tue Sep 13, 2016 9:59 pm
Jöerg Sprave's Pneumatic Arrow Shooter

Last post by jackssmirkingrevenge
Replies: 3
by Dig_Gil » Tue Sep 13, 2016 2:06 pm

First post

NOTE: I wanted to call it a crossbow in the title, but I doubt that to be an acceptable term.

If you don't know, Jöerg Sprave is an YouTuber who...

Last post

You have to copy youtube's share link for the code to work.

3 Replies

4726 Views

Last post by jackssmirkingrevenge
Tue Sep 13, 2016 9:45 pm
.25 Modular QDV Sub-Rifle (WIP)

Last post by Kensingt0n
Replies: 5
by Kensingt0n » Tue Aug 30, 2016 10:30 pm

First post

Hey crew, been lurking the site for a fair while now but haven't posted any threads yet so I figured it was time to change that.

I've been tinkering...

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Just as a quick update, the pump is being constructed as I speak. I'm about to start getting the check valve sorted, after that it should be smooth...

5 Replies

3652 Views

Last post by Kensingt0n
Wed Sep 07, 2016 8:22 pm
Paintball Marker: Velocity too low, poor efficiency

Last post by berninator
Replies: 6
by berninator » Wed Aug 24, 2016 8:39 pm

First post

Hey Folks,

I've been working on a piloted QEV style paintball marker and am running into results that I do not understand:
- Paintball velocity is...

Last post

I created a google spreadsheet to explore efficiency further. The link below leads to a public copy, feel free to mess around with it.

This seems...

6 Replies

4884 Views

Last post by berninator
Mon Sep 05, 2016 3:01 pm
Bernzomatic O2 tank as air tank

Last post by matti
Replies: 1
by arboles1237 » Thu Sep 01, 2016 6:54 pm

First post

I'm building a semi auto paintball gun, and I need an air tank that I can pump safely to 600 psi. Would a Bernzomatic oxygen tank work if emptied out?

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Better way is finding empty co2 bottle, used paintball tanks or sodastream bottles are very cheap.

1 Replies

2535 Views

Last post by matti
Sat Sep 03, 2016 12:00 pm
Air Force Talon/Condor PCP Breach lock?

Last post by Gippeto
Replies: 2
by TheBlueMango » Sun Aug 21, 2016 2:08 am

First post

Hi everyone,
I have two questions about the Air Force PCP rifles.

1. When the breech is in the closed position, if someone accidentally pulls the...

Last post

Takes a considerable amount of force to open the valve against pressure...not going to happen by accident. Somewhere around 170 lbs force to crack...

2 Replies

2102 Views

Last post by Gippeto
Sun Aug 28, 2016 11:05 pm
Pilot operated valve question

Last post by jackssmirkingrevenge
Replies: 1
by Pescadortio » Tue Aug 16, 2016 5:33 pm

First post

Hello,

I am new to the forums and am currently working on a new build and have run into a dilemma. I will be using co2 as the propellant that will...

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Have you considered using a slide-check valve as used on paintball remote lines?

They can take full CO2 pressure without issues, and with enough...

1 Replies

1515 Views

Last post by jackssmirkingrevenge
Sun Aug 28, 2016 9:42 am
Valve won't activate above 60 psi

Last post by jackssmirkingrevenge
Replies: 2
by ryschwith » Wed Aug 17, 2016 12:47 pm

First post

I'm using an Orbit 1 NPT anti-siphon valve to power my pneumatic spud gun. (I understand why anti-siphon valves aren't a great choice but for now...

Last post

it somehow requires more current to activate with higher pressure and my electronic trigger isn't beefy enough, but that seems unlikely.

While it...

2 Replies

1592 Views

Last post by jackssmirkingrevenge
Sun Aug 28, 2016 3:54 am
Co2 Cartridge Help

Last post by wetrabbit1
Replies: 3
by wetrabbit1 » Thu Jul 28, 2016 2:53 am

First post

I came up with an idea for a Co2 powered air cannon that uses Co2 cartridges to shoot, but I cannot find a valve or a way to puncture the seal on the...

Last post

Alright, thanks for the help Ill try to come up with a new design. I just want the realism of having a launcher that by its self is nothing and all...

3 Replies

5435 Views

Last post by wetrabbit1
Fri Aug 19, 2016 1:43 pm
First Cannon is for a Family Build Off

Last post by Juggernaut12121
Replies: 1
by BlackSheepTxRx » Tue Mar 08, 2016 9:51 am

First post

In about 2 months I will be heading to the coast for our annual family fishing trip, every year is a blast with the guys eating, drinking, fishing...

Last post

I realize this is a bit late but if you wanted too you could download two programs called HGDT and GGDT. With the former you could roughly estimate...

1 Replies

2409 Views

Last post by Juggernaut12121
Fri Aug 12, 2016 7:15 pm
Arrow shooting "Steampunk" pistol

Last post by jackssmirkingrevenge
Replies: 4
by JoergS » Sat Jul 09, 2016 1:13 am

First post

This is actually promising... performance is really good, for such a small launcher.

Last post

Nice to see you've finally ventured into the world of compressed gasses :D great stuff as always!

4 Replies

4358 Views

Last post by jackssmirkingrevenge
Mon Jul 25, 2016 4:18 am
Are suppressors illegal for pneumatic launchers?

Last post by biged
Replies: 5
by builderbrick » Sat Oct 03, 2015 12:51 pm

First post

In California?

Last post

If the Suppressor you made can be fixed on a firearm. Then Yes it is illegal.

This has been brought up on multiple airsoft and paintball forums. It...

5 Replies

6670 Views

Last post by biged
Sun Jul 17, 2016 5:34 am
new member

Last post by Hurricane Arms
Replies: 1
by CBjamie » Wed May 04, 2016 4:46 pm

First post

Hi want to introduce myself and thank you for havin me here on Supdfiles. I recently built my first pneumatic canon for the National bring your Kid...

Last post

Best of Luck to you Jamie. We have some experts here on such cannons. I have heard of atleast one gas-operated concept reguarding a combustion tennis...

1 Replies

3041 Views

Last post by Hurricane Arms
Wed Jul 13, 2016 8:54 am
Semi auto loader mechanism: will it work?

Last post by Bando_Red
Replies: 4
by zheffie » Sat Dec 12, 2015 6:05 pm

First post

Hi, i'm contemplating a semi-automatic load mechanism. See below animated gif for clarification.

- After firing, the barrel pressure pushes the...

Last post

I've been pondering something similar to OP based on on a short stroke gas system. BBs have a relatively loose fit as far as projectiles go. would...

4 Replies

5148 Views

Last post by Bando_Red
Tue Jul 12, 2016 9:25 pm
Concentric auto-cocking spool / piston hybrid valve

Last post by Gun Freak
Replies: 6
by mrfoo » Sat May 02, 2015 2:02 pm

First post

So, been toying with this idea for a while. Elements of the balanced spool quick-dump valve with a QEV-style piston, incorporating a trigger...

Last post

Excited to see the progress on this!

6 Replies

5130 Views

Last post by Gun Freak
Thu Jul 07, 2016 10:39 pm
Cannon won't work properly. Are there any obvious flaws?

Last post by Gun Freak
Replies: 4
by aaurum » Sat Jun 25, 2016 5:20 pm

First post

Hey guys.

I just made my first pneumatic air cannon, which was intended to shoot tennis balls, but it doesn't really work. In the past week, when I...

Last post

I would modify that sprinkler valve for pneumatic actuation. You can even use the compressor blowgun that is already on the gun for the mod. Switch...

4 Replies

6684 Views

Last post by Gun Freak
Thu Jul 07, 2016 10:33 pm
How Can I Make My First Semi Auto Fire Extinguisher Gun?

Last post by Pistoncu007

by Pistoncu007 » Sun Jul 03, 2016 8:09 am

Hi Guys ,
I'm a Turkish and don't speak english(I know little).

•I have a 1KG Fire Extinguisher.

•I want to make that's like:

(This Photo From )...

0 Replies

7901 Views

Last post by Pistoncu007
Sun Jul 03, 2016 8:09 am
Small QEV piloting larger QEV

Last post by AlfiePB IanB
Replies: 6
by AlfiePB IanB » Mon Jun 27, 2016 6:56 am

First post

As per title, would either QEV need the spring and hole modification to reset it for the next fill? Been trying to think about this, but not too sure...

Last post

Thanks guys,

6 Replies

4410 Views

Last post by AlfiePB IanB
Wed Jun 29, 2016 1:25 pm
Pneumatic cannon for launching volleyballs

Last post by matti
Replies: 1
by cseaman » Mon Jun 27, 2016 10:26 am

First post

I've built combustion PVC cannons before, but I'm interested in a pneumatic cannon that can launch volleyballs at variable speeds between 5 and 40...

Last post

Hi there ! and welcome to spudfiles !

Remembered this old one :D

For so low speeds and light weight ammo you could possibly use a long pneumatic...

1 Replies

1989 Views

Last post by matti
Tue Jun 28, 2016 2:24 pm
Is this a normally open or closed valve?

Last post by AlfiePB IanB
Replies: 4
by AlfiePB IanB » Tue Jun 14, 2016 10:51 am

First post

Sorry I cant understand the pneumatic symbols, can anyone tell me if the valve in the link is normally open or closed? Many thanks Ian

Last post

Thanks for the info, I don't understand the technical valve diagrams, but would it make a suitable candidate to work as a 3/2 valve to fill my...

4 Replies

5930 Views

Last post by AlfiePB IanB
Thu Jun 23, 2016 3:09 pm
Pneumatic cannon for launching volleyballs

Last post by cseaman

by cseaman » Wed Jun 22, 2016 4:21 pm

I need some suggestions. :dontknow:

I want to create an adjustable mounted pneumatic cannon that will shoot volleyballs at variable speeds (5 - 30...

0 Replies

7120 Views

Last post by cseaman
Wed Jun 22, 2016 4:21 pm

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