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

1007048 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

488153 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...

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great job everyone
64 Replies

560948 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

719763 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

348130 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

83750 Views

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

Topics

The Sprinkler Valve (PDF File)

Last post by sam992
Replies: 128
by Hubb » Wed Dec 17, 2008 1:50 am
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Dear fellow Spudders.

Recently, I've been playing with sprinkler valves and I have come to the conclusion that these are just about the perfect...

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I've used a 2 barrel with a 1 valve, too. The performance is great!
128 Replies

403821 Views

Last post by sam992
Fri Jun 23, 2017 5:40 am
Tutorial - Making a small o ringed piston on a drill press

Last post by MightyBlue
Replies: 29
by Technician1002 » Fri Sep 24, 2010 5:23 pm
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The tutorial is how to take a sheet of HDPE, UMHWHDPE or other suitable material and make a small piston with a floating o ring seal using a drill...

Last post

Great tutorial! will try this later!
29 Replies

152126 Views

Last post by MightyBlue
Sun Sep 07, 2014 5:32 am
Modding A Sprinkler Valve

Last post by mattyzip77
Replies: 191
by PCGUY » Sat Feb 26, 2005 11:23 pm
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MODDING A SPRINKLER VALVE

Image Tutorial Below
Provided By - Tim Brown

Last post

I know this is a old post, but you can drill your hole and mod from the center. The spring will just hit and or rest on the nipple or whatever you...
191 Replies

569168 Views

Last post by mattyzip77
Sat Jul 16, 2011 8:54 pm
How-To: Make a pneumatic cannon with a 2" piston valve.

Last post by Biopyro
Replies: 76
by MrCrowley » Tue Sep 04, 2007 12:14 am
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Update:
I've recently made a far better how-to that covers two different piston designs, aside from that the animations and pictures are also of...

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It's tapered to ensure the seal. Using a bit of PTFE you can screw it in nice and tight and get a good seal.

It starts small so is guaranteed to...
76 Replies

382670 Views

Last post by Biopyro
Thu May 14, 2009 2:30 am
Pro's and Con's on use of an overpressure relief valve. What do you think? An arborist wants your opinion.

Last post by JimmyT
Replies: 3
by treehousedan » Sat Mar 28, 2026 9:54 pm

First post

I used my air cannon to set pilot lines in the top of trees to pull up my climbing rope but wish to chat about safety.

So for an abundance of...

Last post

I used my air cannon to set pilot lines in the top of trees to pull up my climbing rope but wish to chat about safety.

So for an abundance of...

3 Replies

4022 Views

Last post by JimmyT
Fri Apr 03, 2026 9:23 pm
Tire Bead Blaster Modification

Last post by treehousedan

by treehousedan » Fri Mar 20, 2026 8:06 am

As an arborist needing to get a pilot line over a specific tree limb I have many options but my current addiction is air cannons. When I saw a video...

0 Replies

2306 Views

Last post by treehousedan
Fri Mar 20, 2026 8:06 am
Pistelle X68

Last post by Anatine Duo
Replies: 2
by Anatine Duo » Fri Jan 02, 2026 9:04 pm

First post

How would you build a Pistelle X68?

Mod an HDR68? Build from scratch, air powered?

Last post

NOw there's the Intrubuster... with extended barrel well over 200J!!!

2 Replies

19379 Views

Last post by Anatine Duo
Fri Feb 27, 2026 8:38 am
fire extuinguisher cannon

Last post by Yoursurs
Replies: 1
by tatertime » Mon Dec 29, 2025 10:12 am

First post

what size fire extuinguisher and what type would be decent for a cannon? or at least i feel like a fire extuinguisher would work well. also what...

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what size fire extuinguisher and what type would be decent for a cannon? or at least i feel like a fire extuinguisher would work well. also what...

1 Replies

19647 Views

Last post by Yoursurs
Wed Feb 11, 2026 2:05 am
fl(air) gun - mechanically locked pneumatic cartridge for a 26.5mm flare gun

Last post by loraineftw1971
Replies: 22
by jackssmirkingrevenge » Wed Jan 18, 2023 9:40 am
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I thought this deserved a separate thread from the earlier development .

Cartridge with a Polish flare gun from the 1950s based on the Soviet...

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Wow. That is truly amazing. I've got one of these flare guns. Makes me want to experiment now but my skills are very very basic compared to this...
22 Replies

820610 Views

Last post by loraineftw1971
Sat Jan 24, 2026 7:36 pm
3D Printed Air Tank and Barrel

Last post by jackssmirkingrevenge
Replies: 6
by Flash » Thu Nov 20, 2025 1:34 pm

First post

I wanted to showcase my 3D printed air tank and barrel. I made both by printing a thin shell followed by wrapping it in carbon fiber. I have it...

Last post

I no longer worship at the epoxy altar as much as I used to but that is some pretty awesome stuff, great job!

6 Replies

20743 Views

Last post by jackssmirkingrevenge
Wed Jan 07, 2026 11:53 am
Has anyone tried using CO₂ instead of compressed air for a pneumatic cannon?

Last post by D_Hall
Replies: 2
by annasm » Tue Oct 14, 2025 2:17 am

First post

Hi everyone,
I'm researching using CO₂ as the propellant for a pneumatic cannon instead of a regular air compressor. Retro Bowl I'm curious about...

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LOTS of folks have used CO2. How it behaves depends greatly upon how you intend to use it. It could be anywhere from indistinguishable from air to a...

2 Replies

13652 Views

Last post by D_Hall
Fri Nov 21, 2025 4:33 pm
3D printing?

Last post by Liisa
Replies: 14
by Theonepbs » Tue Dec 29, 2020 11:40 pm

First post

7A310B0F-7133-45BD-850D-6A43AFB70666.jpeg Hello all

I appear new to the forums, but I’m really not! I have been on here since dial up internet, and...

Last post

very cool, nice prints!

14 Replies

91252 Views

Last post by Liisa
Fri Nov 07, 2025 2:48 am
Foam "PIAT" round launcher with Paintball tank

Last post by Theonepbs
Replies: 10
by reenact12321 » Thu Oct 10, 2024 12:13 pm

First post

Hi all,

I'm a WWII reenactor and have been toying with the idea of how to create a safe demonstration round for our group's PIAT. For anyone not in...

Last post

just looked it up if you went combustion or allowed to for your purpose you could def hide the smaller 2 -2.5 barrel in a shroud to make it look...

10 Replies

176088 Views

Last post by Theonepbs
Thu Oct 30, 2025 9:13 pm
Pressure ratings for sprinkler valves

Last post by openingbaa
Replies: 5
by biggsauce » Wed Apr 09, 2008 1:55 am

First post

Hey yall I got to thinking about why a sprinkler valve would be rated to say 150 psi. Is the the plastic the valve is made of that can handle the...

Last post

Alright yeah that makes sense about the diaphram ripping. I'd like to hear one actuate at 200 psi and above, I bet its a pretty scary sound.
But...

5 Replies

13065 Views

Last post by openingbaa
Wed Oct 29, 2025 10:53 pm
six needler

Last post by scentedcrafting
Replies: 7
by Anatine Duo » Sun Feb 02, 2025 12:43 pm

First post

Joerg brings it!!!

I bought an hdr68 to mod for something like this but a co2 pepperbox in 9mm ready built for 99 euros is exciting!

Last post

99 euros??? You re so lucky

7 Replies

221693 Views

Last post by scentedcrafting
Wed Oct 22, 2025 10:03 pm
2 position 3 way solenoid valve problems

Last post by peterparkerrbu
Replies: 8
by MtnMaster_303 » Sat Jan 14, 2023 11:18 am

First post

Hi I'm having trouble with a solenoid valve for a qev cannon! The issue is the valve is working but in the opposite way I need it to. So when the...

Last post

It sounds like you have a Normally Open (NO) solenoid valve, and you need a Normally Closed (NC) solenoid valve.

8 Replies

91070 Views

Last post by peterparkerrbu
Wed Aug 27, 2025 11:08 pm
Anyone use theirs as a frozen bait launcher?

Last post by Broylz

by Broylz » Sat Jul 05, 2025 4:10 pm

I have recently completed my first build with a 4” pic chamber of 48” reduced down to 2” and then down again to 1.5” with a pair of street elbows to...

0 Replies

107864 Views

Last post by Broylz
Sat Jul 05, 2025 4:10 pm
best piping for pnumatic cannons and best vaves for pnumatic cannons

Last post by himsignal
Replies: 7
by quinn whitsitt » Thu Feb 15, 2024 1:38 pm

First post

what valves are the best in your opinon
and what pping do you think is the best
any way i hope you all have a great day

Last post

Widely used due to its affordability, availability, and ease of work. PVC is lightweight, durable, and can withstand moderate pressure.

7 Replies

112905 Views

Last post by himsignal
Tue Mar 04, 2025 4:16 am
Pneumatic System Using 1/4 Inch Steel Balls

Last post by mark.f
Replies: 1
by byron555 » Wed Dec 18, 2024 8:48 pm

First post

Hello, I own a 1/4 inch slide valve set combined with a QEV and would like to build or find an optimized semi-automatic loader to use with 1/4 inch...

Last post

You could look at making a blow-forward bolt which uses the air from the main valve to operate. You can probably see how it works in this animation...

1 Replies

52378 Views

Last post by mark.f
Fri Dec 27, 2024 10:22 pm
3d printed QEV

Last post by Laser diode

by Laser diode » Tue Dec 17, 2024 4:01 pm

I had an aluminum qev that worked great but I noticed many things about it that could be improved so I decided to try to make one myself. At first I...

0 Replies

95911 Views

Last post by Laser diode
Tue Dec 17, 2024 4:01 pm
Pneumatic System Using 1/4 Inch Steel Balls

Last post by byron555

by byron555 » Sun Dec 15, 2024 8:45 pm

Hello, I own a 1/4 inch slide valve set combined with a QEV and would like to build or find an optimized semi-automatic loader to use with 1/4 inch...

0 Replies

97339 Views

Last post by byron555
Sun Dec 15, 2024 8:45 pm
3” Sprinkler Valve Tennis Ball Cannon

Last post by mark.f
Replies: 4
by Flash » Thu Nov 07, 2024 11:20 am

First post

I made a tennis ball cannon using a 3” sprinkler valve. It fires a ball at ~150 yards at just 30 PSI. The valve is manufactured by Dorot, repackaged...

Last post

Nice catch!
and nice launcher, neat to see people still building in 2024.

4 Replies

49523 Views

Last post by mark.f
Fri Dec 13, 2024 2:59 am
Pneumatic System Using 1/4 Inch Steel Balls

Last post by byron555

by byron555 » Mon Dec 09, 2024 8:45 pm

Hello, I own a 1/4 inch slide valve set combined with a QEV and would like to build or find an optimized semi-automatic loader to use with 1/4 inch...

0 Replies

97145 Views

Last post by byron555
Mon Dec 09, 2024 8:45 pm
Pneumatic System Using 1/4 Inch Steel Balls

Last post by byron555

by byron555 » Sun Dec 08, 2024 8:56 pm

Hello, I own a 1/4 inch slide valve set combined with a QEV and would like to build or find an optimized semi-automatic loader to use with 1/4 inch...

0 Replies

97941 Views

Last post by byron555
Sun Dec 08, 2024 8:56 pm
Making a Snow Cannon

Last post by byron555

by byron555 » Fri Dec 06, 2024 5:33 am

Hello, this year I want to make the traditional snowball fights more interesting and exciting this winter by making a snow cannon that can launch...

0 Replies

94586 Views

Last post by byron555
Fri Dec 06, 2024 5:33 am

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