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

906531 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

442045 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

389811 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

618981 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

328913 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

78641 Views

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

Topics

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

5752 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

3645 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

3458 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...

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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

3771 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?

Last post

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

1 Replies

1634 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

1979 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

1123 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...

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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

1501 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...

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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

3666 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

1924 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

3589 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

5085 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

1548 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

3976 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

4950 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

3403 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

7419 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

4000 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

1623 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

3698 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

6487 Views

Last post by cseaman
Wed Jun 22, 2016 4:21 pm
Replica Tihar (Metro Pneumatic Rifle) Possible?

Last post by cowscankill

by cowscankill » Tue Jun 21, 2016 12:28 pm

Hello hello, back from the dead for another year. Some background for ya:
It seems I can't escape spudding no matter how much time passes. I made a...

0 Replies

8397 Views

Last post by cowscankill
Tue Jun 21, 2016 12:28 pm
PCP Calculation - Please assist me

Last post by matti
Replies: 2
by joaquin » Tue Apr 26, 2016 11:50 am

First post

Hello guys,

I am building my own PCP home made gun from parts (paintball tank+ plumbing parts) but I have one big question at the end and I need one...

Last post

You are balancing between muzzle velocity and shots per tank here.. you need to think which one is more important for your use. If you can get the...

2 Replies

2180 Views

Last post by matti
Fri Jun 17, 2016 11:13 am
Question concerning testing my ''pressure vessel''

Last post by BramR
Replies: 2
by BramR » Mon Jun 13, 2016 4:44 pm

First post

Hi guys,

In my current setup, i am using a fire extinguisher as a ''pressure vessel''.
i have a fridge compressor connected to it using quick...

Last post

Thanks for the quick reply!

That could indeed be a problem for me. I only have my fridge compressor to reach the pressures that i want to achieve....

2 Replies

2221 Views

Last post by BramR
Thu Jun 16, 2016 2:41 pm
Sprinkler valve works for one shot, then sticks open

Last post by Gun Freak
Replies: 1
by fredgoodsell » Tue Jun 07, 2016 9:38 am

First post

Hey all,

I have recently built a tennis ball launcher, using a modified Orbit valve. Airgun is threaded into hole in cover, and solenoid holes are...

Last post

Are you filling from the pilot side or from the chamber? If from the chamber, try switching to pilot filling as this will forcefully re-seat the...

1 Replies

1668 Views

Last post by Gun Freak
Tue Jun 14, 2016 9:53 pm

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