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

1201375 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

604797 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

857676 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

1020618 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

392541 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

100025 Views

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

Topics

Mythbusters Web Shooter

Last post by JDP12
Replies: 9
by Juicey » Wed Apr 18, 2007 11:21 pm

First post

Hey guys, not sure if anyone else watched the episode of Mythbusters that came on tonight, about birds in flight in the back of a cargo truck, but...

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Yes i saw that episode.. I agree with Juicey, that episode was pretty lame. But the cannon was SWEEEETT. Definitely the coolest I have ever seen. iF...

9 Replies

5355 Views

Last post by JDP12
Fri Apr 20, 2007 9:15 pm
Coaxial piston problems

Last post by JDP12
Replies: 8
by JDP12 » Thu Apr 19, 2007 9:58 pm

First post

Well I've been looking to upgrade to a coaxial piston gun now, but I have a couple questions.
Sorry if they may seem newbie-ish, I just want as much...

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so when you say piston travel, are you suggesting that I stop it with a bumper before the chamber ends, as compared to stopping it at the end of the...

8 Replies

2913 Views

Last post by JDP12
Fri Apr 20, 2007 9:05 pm
Budget Sally

Last post by TwitchTheAussie
Replies: 19
by shud_b_rite » Thu Apr 19, 2007 11:44 pm
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I made this one out of an old fire extinguisher, a 2 by 4 and some electrical pipe. This is as simple as it gets for using a fire extinguisher as a...

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I live in NZ, over here a poor harder would be the equivalent of a redneck.

Hows the sheep going? and there is an equivelant of a red neck...
19 Replies

6411 Views

Last post by TwitchTheAussie
Fri Apr 20, 2007 8:16 pm
new type of co2 injection

Last post by hi
Replies: 5
by hi » Fri Apr 20, 2007 12:24 am

First post

does anybody here know anything about these...

i was thinking i could use it when im at a friends house and away from my beloved air compressor....

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has anyone ever used one besides keep it real? im going to buy on, i just would like to know if they are really worth is before i buy one.

5 Replies

1294 Views

Last post by hi
Fri Apr 20, 2007 5:21 pm
Compact pistons

Last post by goose_man
Replies: 7
by goose_man » Fri Apr 20, 2007 9:31 am

First post

When I see pistons that are housed entirely inside a tee, I am always impressed. I am able to do that as far as the barrel-end goes, but how do you...

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Thank you very much, I'm pretty sure I can do it now. I'll post the pics when it's done.
-goose_man

7 Replies

3267 Views

Last post by goose_man
Fri Apr 20, 2007 4:43 pm
Shoulder-Mounted Coaxial Concept

Last post by clide
Replies: 8
by surfbum » Thu Apr 19, 2007 11:48 pm

First post

hey guys
just wanted some input on design concept I'm working on
and let me start by apologizing for the crappy diagram

some background info:...

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Clide,The gun has to be coaxial to be a MKX look alike.How did you build the check valve in the piston?And is the checkvalve better in larger pistons...

8 Replies

3184 Views

Last post by clide
Fri Apr 20, 2007 4:06 pm
Mitchza's 5th Pneumatic

Last post by Mitchza89
Replies: 22
by Mitchza89 » Mon Apr 16, 2007 2:01 am
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Gday guys,

This is my 5th cannon. Like my others, it's made from poly and uses a sprinker valve in some way or another. But I tell ya...This is the...

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HAHA there is no way this thing can go for the sniper award :P not good enough. we have a tree in our yard that has some 600ml sized seed pods...
22 Replies

8205 Views

Last post by Mitchza89
Fri Apr 20, 2007 8:04 am
Basic coxial

Last post by WOW!!
Replies: 19
by WOW!! » Wed Apr 11, 2007 10:25 pm
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Here is a basic coaxial me and my friend made. I still have to clean it and paint it. The chamber is 4''X3' 5'' and the barrel is 2''x3'. It is...

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Thankx...Ok thats what I thought. But 4 ?! isnt that a pain to seal tight enough to stay pressurized. Do you have plumbers wrenches that big? OR just...
19 Replies

7052 Views

Last post by WOW!!
Fri Apr 20, 2007 5:04 am
Piston Valve Question

Last post by scatdawg
Replies: 14
by PAspuder » Wed Apr 18, 2007 9:58 pm

First post

I am designing a piston valve for a upcoming launcher and i was wondering if anyone that has build a successful piston valve could give me some...

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pa spuder, on my current piston which is 2.5 in diameter plastic uhmw i just bolted on a 1/8 inch thick rubber flap with two 3/32 inch equilization...

14 Replies

4390 Views

Last post by scatdawg
Thu Apr 19, 2007 10:08 pm
chicken

Last post by rad14701
Replies: 33
by scatdawg » Thu Apr 19, 2007 8:16 pm
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why did the chicken cross the road? because i was shooting hard boiled eggs at him with my 150 psi egg gun.
sorry 'bout the stupid post but i have...

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I seem to recall something in the contest rules posted by PCGUY to the effect that he would be watching for bogus forum posts being made in an effort...
33 Replies

7159 Views

Last post by rad14701
Thu Apr 19, 2007 9:29 pm
barrel to chamber volume

Last post by scatdawg
Replies: 4
by scatdawg » Thu Apr 19, 2007 8:58 pm

First post

i know i could search this out but can someone tell me the physics or mathematical theory and equations on calculating the most efficient volume...

Last post

thanks again for the links

4 Replies

6001 Views

Last post by scatdawg
Thu Apr 19, 2007 9:25 pm
turning nylon

Last post by boilingleadbath
Replies: 6
by paddo » Wed Apr 18, 2007 7:14 am

First post

has anyone made a piston out of turning nylon ?

i think i'm getting some ttomorrowand id like to know anyones ideas about it preferably people that...

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No experience with turning nylon... but I thought I'd point out that it's less dense than PVC.

6 Replies

2257 Views

Last post by boilingleadbath
Thu Apr 19, 2007 9:11 pm
Skeet Shoting with a Pneumatic Cannon Possible?

Last post by judgment_arms
Replies: 23
by AmYisroelChai » Mon Apr 16, 2007 6:51 pm
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Hi everyone,

I know this may sound silly but bear with me I promise I am not an idiot.

My family has been making fun of my Starch Acceleration...

Last post

No Iknowmy3tables, what I mean is, by having less shot to a round (load fewer BBs) each piece of shot will have a higher muzzle velocity, meaning...
23 Replies

6769 Views

Last post by judgment_arms
Thu Apr 19, 2007 8:42 pm
t-shirt launcher

Last post by homedepotpro
Replies: 3
by homedepotpro » Thu Apr 19, 2007 8:16 pm

First post

has anyone built a t-shirt launcher before

Last post

thanks luke, my neighbor wants me to build one for her.

3 Replies

1988 Views

Last post by homedepotpro
Thu Apr 19, 2007 8:37 pm
Wes's Pneumatic

Last post by wesman987
Replies: 38
by PCGUY » Sat Feb 05, 2005 6:34 pm
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WES PNEUMATIC

Provided By Wesman987 -

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I'd have to take a look at it again, I believe there was an alignment rod in there that had come out after there had been some sealing issues....
38 Replies

25580 Views

Last post by wesman987
Thu Apr 19, 2007 3:01 pm
Burst Disk Times

Last post by flamerz14
Replies: 9
by flamerz14 » Wed Apr 18, 2007 7:29 am

First post

Referring to the how long do these materials take to rupture assuming the pressure is 80psi?

Aluminium foil
Wide electrical tape
Plastic from drink...

Last post

i won't... i mean, who wants to have their annon blow up when firing?? :lol:

9 Replies

4066 Views

Last post by flamerz14
Thu Apr 19, 2007 9:21 am
Clear Plexiglass Piston Problems. FIXED!!! WORKING GUN NOW

Last post by demilus
Replies: 50
by demilus » Tue Apr 10, 2007 3:12 pm
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Alright, so this is my first piston type gun. I'll admit it, I've been putting off building one (I've been content with my modded sprinkler valves...

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Yay new pics!
This is probably not gonna be a comp gun, as it is a piece of sh!t.
Definately not my best work, so I don't really wanna have my name...
50 Replies

13540 Views

Last post by demilus
Thu Apr 19, 2007 8:53 am
Mega Build (3" ported valve)

Last post by hi
Replies: 30
by Zorrowannabe9 » Sun Apr 08, 2007 10:32 pm
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Well I completed building a 3 ported piston valve. I have not tested it yet, but i have confidence in my build (will test it tomorrow). The piston...

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Imagine how fast it would actuate...............

imagine how much it would cost................
30 Replies

11325 Views

Last post by hi
Wed Apr 18, 2007 10:21 pm
Bolt action pneumatic

Last post by us sniper
Replies: 5
by us sniper » Tue Apr 17, 2007 10:52 pm

First post

This is the gun that I am going to start building. Does anyone have any tips or suggestions. I am using the basic design for the paintball gun off of...

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what do you mean what stops the shell from coming out? You would just the same size pipe as you useed for the shell as a stopper. That way the ammo...

5 Replies

2091 Views

Last post by us sniper
Wed Apr 18, 2007 9:52 pm
PVC Welding screwup!

Last post by pyro6314
Replies: 21
by pyro6314 » Wed Apr 18, 2007 6:06 pm
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Unfortunately I just finished my new Golf Ball Cannon and my shaved bushing I made for the front of my barrel sealing piston valve leaks badly after...

Last post

Just to see whats going on, I would fire the gun at like 80 psi (F*in deafening!) Then look down the barrel section into the valve to see how far the...
21 Replies

4816 Views

Last post by pyro6314
Wed Apr 18, 2007 8:48 pm
Coaxial Piston Question

Last post by rad14701
Replies: 15
by surfbum » Tue Apr 17, 2007 12:37 am
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i have a few technical questions about the design of a coaxial piston valve

1. how much movement does the piston need to move (i.e. in a barrel...

Last post

Most nylon should be durable enough for a piston... You need to be more careful when turning in a lathe than with derlin, however, as you will need...
15 Replies

4391 Views

Last post by rad14701
Wed Apr 18, 2007 8:08 pm
Proof of concept piston

Last post by Panzerfaust
Replies: 8
by Panzerfaust » Wed Apr 18, 2007 1:45 pm

First post

Im new to this forum, but have done a fair amount of pvc construction and am looking to upgrade from my current modified sprinkler valve gun. After...

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Bolt and Washer? my main aim is to make a piston that is extremely simple. im going to use end caps. In case i change my mind however, where do you...

8 Replies

4327 Views

Last post by Panzerfaust
Wed Apr 18, 2007 7:20 pm
pressure releif valves

Last post by rad14701
Replies: 5
by fpshutch74 » Wed Apr 18, 2007 4:12 pm

First post

i am wondering about the safety bursk disks, is there a relief disk/valve that releaves the chamber pressure if it reaches say 150 psi. i am thinking...

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@_Fnord...

I'm right there with you on that one... Discretionary income, or the lack thereof, is keeping me from displaying that my helpful hints...

5 Replies

1804 Views

Last post by rad14701
Wed Apr 18, 2007 5:26 pm
Twitches Ghetto Pneumatic V 2.0

Last post by TwitchTheAussie
Replies: 4
by TwitchTheAussie » Tue Apr 17, 2007 11:13 pm

First post

Ok update from my other Ghetto Award Contestant. This is its little brother. It has a 600ml coke bottle chamber, another schrader valve, the same 3/4...

Last post

Good idea Im looking for an aluminium broom handle. And I get my valves by blowing up old bike tubes and cutting the valves off. Its a lot of fun...

4 Replies

1722 Views

Last post by TwitchTheAussie
Wed Apr 18, 2007 5:16 pm
Piston valve help

Last post by super spuder
Replies: 15
by super spuder » Mon Apr 16, 2007 7:51 pm
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i went into the hardware store today and bought a 3 inch T, a 3 inch addapter and a three inch cap. that is going to be the shell of my piston valve....

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i cant find any o-rings big enough. and my wood shop teacher will not let me make it because i stupidly told him that i was making a potato gun...
15 Replies

3367 Views

Last post by super spuder
Wed Apr 18, 2007 3:46 pm

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