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

1193082 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

599610 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

854329 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

1015255 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

390868 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

99295 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

482364 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...

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Great tutorial! will try this later!
29 Replies

185486 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

658573 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

461765 Views

Last post by Biopyro
Thu May 14, 2009 2:30 am
Tire Bead Blaster Modification

Last post by D_Hall
Replies: 2
by treehousedan » Fri Mar 20, 2026 8:06 am

First post

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...

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Huh. Interesting. I've seen bead blasters in the past and they always had ball valves or similarly less than optimal for our applications valves. To...

2 Replies

49628 Views

Last post by D_Hall
Tue Jun 16, 2026 8:26 pm
Need help on Pneumatic Air Cannon design!

Last post by farcticox1
Replies: 1
by DaisyPukes » Thu May 21, 2026 2:46 am

First post

Hi everyone!

I'm a junior in high school and a noob about building pneumatic air cannons. For my physics 1 final, I decided to build a pneumatic air...

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Do you have a budget or access to parts. What ammo are you going to use ? I found airsoft a good place to start or even Nerf Rival can give good...

1 Replies

4075 Views

Last post by farcticox1
Sun Jun 07, 2026 3:54 pm
3D Printed Quick Dump Valve

Last post by Flash
Replies: 1
by Flash » Wed Apr 29, 2026 12:41 am

First post

I designed a 3” diameter quick dump valve cannon using a novel trigger mechanism. It’s printed in PETG, has a 2 L air tank, an 18” barrel, fires a...

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Here’s a clip showing how it’s pressurized using a bike pump, the loading process, and a shot at a more modest 45 PSI. The TPU stock butt pad does a...

1 Replies

10762 Views

Last post by Flash
Wed Apr 29, 2026 7:45 am
2 Inch QEV Cannon

Last post by nleroux
Replies: 37
by Jamzearljones » Thu Nov 09, 2017 3:33 am
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This is my first attempt at a spud gun, and while I have yet to launch a potato, I am thoroughly pleased with the results. A lot of credit goes out...

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Hi Jamzearljones,
Could it be possible yo use one of you image that you posted this one: for a televison show? Could you write me to my email adress:...
37 Replies

36432 Views

Last post by nleroux
Mon Apr 20, 2026 10:50 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...

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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

95453 Views

Last post by JimmyT
Fri Apr 03, 2026 9:23 pm
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

256143 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

254358 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

1063447 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

166495 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

22455 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

112152 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...

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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

188178 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

21185 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

233771 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...

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

8 Replies

101765 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

141698 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

129276 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

63571 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

134411 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

134848 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

61881 Views

Last post by mark.f
Fri Dec 13, 2024 2:59 am

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