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

1661815 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

752657 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

980633 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...

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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

1163791 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

465396 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

131246 Views

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

Topics

My First Pneumatic

Last post by Potato Demon
Replies: 9
by Potato Demon » Tue Oct 30, 2018 10:31 pm

First post

Hi, I recently built my first pneumatic potato cannon. It has a 2’ x 2” ABS air tank, a 2 inch ball valve trigger, and a barrel the same size as the...

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I find that wooden projectiles about the size of a red potato wrapped in duct tape work very well.

9 Replies

5828 Views

Last post by Potato Demon
Mon Nov 05, 2018 7:01 pm
Full Auto 50

Last post by jackssmirkingrevenge
Replies: 75
by kustomkb » Thu Feb 20, 2014 11:02 pm
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Inspired by e_smith2000's AA gun, ( ) I started on one of my own.

Here is a screen shot of the basic design;

I started on a jar-top valve...

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If I say I am going to do something, I do it. It may take five years, but it gets done.

How many times has the wife heard that :D

I can adjust...
75 Replies

46673 Views

Last post by jackssmirkingrevenge
Sat Oct 27, 2018 5:47 am
Low cost High pressure compressor

Last post by wafen
Replies: 17
by Spudinator » Wed Feb 07, 2018 1:04 pm
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So I've recently got into PCP air rifles which require up to 4500 PSI charge pressure, and initially thought I would have to go to paintball or scubs...

Last post

Well,exactly they are much cheaper in China.

*These things in China use 220v.
17 Replies

20604 Views

Last post by wafen
Thu Oct 25, 2018 7:57 pm
Starting a new build

Last post by Flounder
Replies: 19
by Flounder » Tue Aug 21, 2018 4:57 pm
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I have been lurking here for awhile and decided it was time to register and try to take advantage of the collective mind for a build. I am a...

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using GGDT I came up with a peak of less than the 40 psi limit. I also sourced an old oxygen tank today for free while out at a paintball event. I...
19 Replies

8914 Views

Last post by Flounder
Sat Sep 22, 2018 6:19 pm
Pneumatic RC Plane Launcher

Last post by jackssmirkingrevenge
Replies: 10
by Phil » Wed Sep 12, 2018 1:48 pm

First post

Hi, i have an RC plane and I want to do this:

My plane wheight is 1.5kg and I need to fly at first between 70 to 100 Km/h (the wings are small and...

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Do you think that I ca use Paintball accessories to do it? A bottle, a regulator to fill the chamber and a trigger system ? Like that I have just to...

10 Replies

5635 Views

Last post by jackssmirkingrevenge
Tue Sep 18, 2018 4:37 am
coupler burst disk M72 law

Last post by iknowmy3tables
Replies: 4
by iknowmy3tables » Fri Aug 31, 2018 4:47 pm

First post

Hey spudfiles long time no see,

my at4 recently died on me, I'm not sure how but the toolies valve piston got bent and permanently lodged itself...

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Yeah I shrunk the burst disk size to in theory increase rupture pressure and have less burst disk material overall all to hopefully make this more...

4 Replies

3376 Views

Last post by iknowmy3tables
Mon Sep 17, 2018 10:28 am
Party Popper dissection (disposable pneumatic)

Last post by jackssmirkingrevenge
Replies: 1
by iknowmy3tables » Sat Sep 08, 2018 12:43 pm

First post

hello folks I recently bought some disposable confetti cannons to see if they could be used to launch nerf footballs in airsoft mil sim events. you...

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Nice little analysis! It's basically a clever implementation of the valveless concept , I don't see why you wouldn't be able to put in a schrader and...

1 Replies

4244 Views

Last post by jackssmirkingrevenge
Sat Sep 15, 2018 7:54 am
Elephant Rifle mk1 and mk2

Last post by farcticox1
Replies: 33
by Major Collins » Sun Jul 14, 2013 7:49 am
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My first rifle post in joining this forum!

Well this is my 1/2 inch piston valve rifle.
The barrel 16mm(roughly)x65cm long steel. Fits marbles...

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To actuate or trigger a QEV you need to release air from the P port, that pipe is connected to the P port and dumps air through the blow gun from the...
33 Replies

23143 Views

Last post by farcticox1
Sun Sep 02, 2018 7:50 am
Pilot Valve for QEV - JSR's $20 Semi-Auto BB Gun Question

Last post by hectmarr
Replies: 4
by littlebro05 » Fri May 11, 2018 7:07 pm

First post

Hey guys,

It's been a very long time since I've posted here. I remember JackSmirkingRevenge posting a $20 BB Semi-Automatic BB Gun. In this link...

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I have a weapon for BB plastic 6mm with a 5/2 operated as a 3/2, it uses a little pressure about 60 psi, it is semiautomatic. I leave here a picture.

4 Replies

4525 Views

Last post by hectmarr
Sat Sep 01, 2018 12:50 pm
Grappling Hook Launcher

Last post by iknowmy3tables
Replies: 2
by Fordas » Wed Aug 22, 2018 7:18 pm

First post

hey, just finished up the video on this a few mins ago.
as for the launcher it fires a 2kg grappling hook using a 3/4 QEV and a 1L firing tank at...

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nice work, would be a great tool for starting a rope swing.

sensible safety advice would say to never actually use a grappling hook for climbing,...

2 Replies

2811 Views

Last post by iknowmy3tables
Fri Aug 31, 2018 8:48 pm
Golf ball distance records?

Last post by velocity3x
Replies: 11
by 3fenders » Wed Jul 11, 2018 2:13 pm

First post

Hi, new guy here. How far could a home made pneumatic cannon made from schedule 40 PVC shoot a golf ball? Are there any world records?
Thanks!

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North of 1500 fps is the fastest I've gotten a golf ball up to - I imagine it would travel about as far as it could with a mean hook or slice at that...

11 Replies

15315 Views

Last post by velocity3x
Fri Aug 31, 2018 5:59 pm
Panzerabwehrwerfer 600 and the high-low pressure system

Last post by jackssmirkingrevenge
Replies: 7
by jackssmirkingrevenge » Thu Aug 16, 2018 3:06 am

First post

A relatively obscure artillery piece that came online in the dying days of the Third Reich was the 8 cm PAW 600 :

This weapon used the then novel...

Last post

The specificity of the application being to attack some swimmy bois is a little disconcerting

oh internet :roll: :D

While there are some...

7 Replies

10161 Views

Last post by jackssmirkingrevenge
Tue Aug 28, 2018 2:24 pm
Flintlock style pistol with spring loaded ball valve

Last post by jackssmirkingrevenge
Replies: 22
by farcticox1 » Tue Jul 10, 2018 4:34 pm
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Started to build a flintlock stylie pistol with a spring loaded ball valve.

PDRAG_left.jpg

1/4 threaded ball valve with 1/4 ID barrel and 3/4...

Last post

Great job, love the table-top fill station :) shame about the loss around the loading port but as you say, it's worth the convenience.
22 Replies

10176 Views

Last post by jackssmirkingrevenge
Sun Aug 12, 2018 6:19 am
3k HPA Tank and Sprinkler Valve

Last post by jackssmirkingrevenge
Replies: 13
by jbmoyer » Sun Jul 29, 2018 8:21 am

First post

Hello, im a cannon noob, looking to build an air cannon for nerf rockets for airsoft. Been looking at various designs. Leaning toward 12 gram C02 as...

Last post

Pleasure, feel free to post any schematics or shopping lists for constructive criticism so you can be pointed in the right direction ;)

13 Replies

5394 Views

Last post by jackssmirkingrevenge
Fri Aug 03, 2018 6:52 am
triple asco valve cannon PROBLEM

Last post by jackssmirkingrevenge
Replies: 23
by I3IV » Mon Jul 02, 2018 1:33 pm
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Hi all,
I'm building my cannon with 2 asco valves(1.5 in.) and 1 goyen valve (1.5 in.). Pictures attached:
IMAG0249.jpg
IMAG0250.jpg

The 2...

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Jack, how about compression fittings to replace the bad hoses? I will use the ones with 1/8 mnpt on 1 end and the other end is 1/4 tubing to up the...
23 Replies

9673 Views

Last post by jackssmirkingrevenge
Fri Aug 03, 2018 5:01 am
7 Barrel Sequential Powder cannon - Product Video Shoot Proj

Last post by jackssmirkingrevenge
Replies: 11
by Braddubya » Sun Jun 24, 2018 3:12 pm

First post

Hello everyone,

I haven't been on here for quite some time but what was once a small hobby has given rise to a potential buisness opportunity. We...

Last post

Reminds me of this:

Hate to see the worky bits concealed but ah well :) great work!

11 Replies

6495 Views

Last post by jackssmirkingrevenge
Thu Jul 12, 2018 6:17 am
CO2 Stokes Mortar

Last post by hectmarr
Replies: 32
by Cthulhu » Wed May 17, 2017 9:26 pm
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A friend and I are making a mortar that fires foam projectiles powered by 12g CO2 cartridges. It isn't anything fancy, just a 3 PVC pipe with a nail...

Last post

I would like to see how this works. It's interesting :)
32 Replies

25121 Views

Last post by hectmarr
Tue Jul 10, 2018 8:25 pm
A lot of help needed, improving old gun

Last post by farcticox1
Replies: 4
by Talk » Tue Jul 03, 2018 10:40 am

First post

Hello people,

QEV, slide valve, schrader etc easiest combo to make a decent gun but i can't even get some of those here in local shops and the only...

Last post

This is simple

4 Replies

6318 Views

Last post by farcticox1
Fri Jul 06, 2018 5:08 pm
stainless shorty

Last post by jackssmirkingrevenge
Replies: 1
by markdem » Sat Jun 30, 2018 2:50 pm

First post

how it works: the flexible rubber tube (300psi air hose in this case) is crimped in the middle by a lever, preventing air from escaping. once the...

Last post

Sweet built and a unique valve, love it!

1 Replies

3099 Views

Last post by jackssmirkingrevenge
Sun Jul 01, 2018 7:00 am
dual sprinkler valves not sealing

Last post by voi9viper
Replies: 5
by voi9viper » Sat Jun 23, 2018 3:14 pm

First post

I converted my orbit sprinkler valve canon to two valves. the two pilots are connected with 3/8's hose, and a tee plus airgun. Is it my poor hose...

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Ok, I got another orbit 8 screws valve and its fine. I could not get the jar top orbit 1 to work. I'm sure I could have eventuly fixed the problem,...

5 Replies

3353 Views

Last post by voi9viper
Sun Jun 24, 2018 6:13 pm
Golf ball launcher

Last post by wdr0
Replies: 13
by Sohail_L » Mon Jun 04, 2018 10:57 am

First post

I’m building an air powered golf ball launcher. My barrel is 2inches and it’s too big so the air escapes around the golf ball. I can’t find the right...

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Huh, link works for me. Picture looks kinda like a general one of a smaller fitting but they have them in both 1-1/2” and 2” sizes as well as the...

13 Replies

14848 Views

Last post by wdr0
Sun Jun 24, 2018 7:46 am
Steampunk Sidearm

Last post by jackssmirkingrevenge
Replies: 8
by mako » Tue Apr 10, 2018 12:01 pm

First post

It's been a LONG time since I was on Spudfiles...

In the interim, I got a minilathe and I've played with it a lot. Obviously, airguns are the goto...

Last post

It's the solution I had used for the Apace Fireball rebuild .

8 Replies

8099 Views

Last post by jackssmirkingrevenge
Wed Jun 20, 2018 3:53 am
Twist and Shoot

Last post by jackssmirkingrevenge
Replies: 6
by jackssmirkingrevenge » Wed Jun 13, 2018 6:47 pm

First post

A little idea that came to mind, not going to build it but thought I should share.

Two cylinders on a common axis, one has the barrel and one has...

Last post

One application could be cartridges in a stick magazine, with the trigger basically elevating a cartridge to a barrel... again, not something I'd...

6 Replies

4945 Views

Last post by jackssmirkingrevenge
Wed Jun 20, 2018 3:44 am
How exactly to build a pneumatic tennis ball launcher?

Last post by MrGalaxy
Replies: 14
by MrGalaxy » Sat Jun 09, 2018 12:50 pm

First post

Before i get any bad comments i could not find a good or reliable build for this anywhere on the internet, let's change that now... OK, so how do i...

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What valve do you recommend? Also, i'm having trouble finding pipe for the air chamber that is bigger than the barrel. What size barrel does the air...

14 Replies

20070 Views

Last post by MrGalaxy
Thu Jun 14, 2018 12:02 pm
Alil help, advice, and direction

Last post by jackssmirkingrevenge
Replies: 4
by MrMunchiezz » Mon Jun 11, 2018 6:33 pm

First post

BACKSTORY

So first off I am a quad and wheelchair-bound with limited hand use. I also live in a small town with eight different golf courses. I am...

Last post

Here's a virtual launcher modeled in Gas Gun Design Tool :

golfballcannonspringklervalve.png

I used a modified 1 sprinkler valve, 12 inch long...

4 Replies

11238 Views

Last post by jackssmirkingrevenge
Wed Jun 13, 2018 7:51 pm

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Pneumatic Cannons

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