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

1201266 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...

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

604756 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

857649 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

1020562 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

392529 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

100020 Views

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

Topics

Metal slider valve design and construction, help.

Last post by schmanman
Replies: 9
by )DEMON( » Wed Nov 08, 2006 7:36 am

First post

I want to make a slider valve for and piston valve exhaust. I liked the design of clides semi auto paintball gun, the main part is the slider valve:...

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go for slightly under size. at least It should seal that way.

9 Replies

3748 Views

Last post by schmanman
Fri Nov 10, 2006 2:25 pm
Pressure Washer Power

Last post by ammosmoke
Replies: 11
by ammosmoke » Wed Nov 08, 2006 7:06 pm

First post

Hi, I haven't posted for a while........Stupid school work :x ANYWAYS,,,, would there be some way for me to use a pressure washer to pressurize a...

Last post

Oh...... ok got it. I wish you could tell when people were being sarcastic or trying to emphasize points on here.......

11 Replies

3653 Views

Last post by ammosmoke
Thu Nov 09, 2006 8:59 pm
Where can I find a pressure gauge?

Last post by Flying_Salt
Replies: 15
by Flying_Salt » Wed Nov 08, 2006 6:52 pm
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Hey I called my local Home Depot, and sure enough, it was the same person who didn't know what pressure rated PVC pipe was. I asked if they carried...

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yeah I saw them in the plumbing section. It sounds like you were just talking to an idiot and you should just go there.

Yes, I was talking to an...
15 Replies

4469 Views

Last post by Flying_Salt
Thu Nov 09, 2006 7:12 pm
Modded Spriknler Valve Acting Up

Last post by Kobl
Replies: 6
by Kobl » Thu Nov 09, 2006 2:44 pm

First post

So I modded myself a 1 inch Watermaster valve and whenever I pressurize and fire it makes the honking sound described by people who are using...

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Its connected straight to the valve. If your wondering why I keep replying so rapidly its because I need this functional for this weekends Nerf war....

6 Replies

2004 Views

Last post by Kobl
Thu Nov 09, 2006 3:58 pm
Gorrilah's new combustion ghetto peice of scheice!

Last post by killagorrila99
Replies: 8
by killagorrila99 » Mon Oct 30, 2006 3:13 am

First post

Well heres somthing I threw together for tomorow night (haloween) for shooting eggs into a little local feild for distance. It is way ghetto but...

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Yea I'll have to ask PC to move it. And this gun never worked, Any ideas why?

8 Replies

2611 Views

Last post by killagorrila99
Thu Nov 09, 2006 2:46 am
2" Ported Tee Valves!

Last post by BC Pneumatics

by BC Pneumatics » Wed Nov 08, 2006 11:20 pm

These valves are incredibly high powered, and are even cheaper than Supah's, not to mention it doesn't take months to get to your door!

0 Replies

1808 Views

Last post by BC Pneumatics
Wed Nov 08, 2006 11:20 pm
Gluing Today

Last post by killagorrila99
Replies: 15
by rixth » Thu Nov 02, 2006 1:45 pm
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Heya guys,

Building my first pneumatic cannon today. I've built a couple combustion ones before.

Using PN12 (178psi) piping, 2 meter (6.5 feet)...

Last post

Woh. Can we see some pics of the gun?
15 Replies

4962 Views

Last post by killagorrila99
Wed Nov 08, 2006 2:46 am
How far should a piston atleast move backwards?

Last post by boilingleadbath
Replies: 17
by POS » Tue Oct 31, 2006 5:54 pm
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The title says it all. How far should a piston move back in a barrel sealing piston valve ?

If I think logicaly, I would say at least half of the...

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You might loose a couple psi from slightly overzelous piston movement - but, that extra chamber volume thus created will cause the preformance to be...
17 Replies

6961 Views

Last post by boilingleadbath
Tue Nov 07, 2006 6:07 pm
help with 2" valve

Last post by POS
Replies: 9
by CKrawlermike » Sat Aug 26, 2006 10:41 am

First post

i just picked up a 2 sprinkler valve for free and want to know how to get the most power and flow from it. i have done the modification like the 1...

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I wonder why actualy. Why does everyone make such a fuss about old topics that keep comming up ? Ok, old ones like 1 or 2 years, but even then, ......

9 Replies

2422 Views

Last post by POS
Tue Nov 07, 2006 5:23 pm
Piston Valve not so air tight

Last post by -T0OL-
Replies: 12
by -T0OL- » Mon Oct 30, 2006 8:32 pm

First post

Hey, im making a coaxial, and i need some info...

What do you guys use for the sealing face on a piston? (preferably from a local hardware store...

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alright thanks for the comments. ill have to try a few of these

12 Replies

7630 Views

Last post by -T0OL-
Mon Nov 06, 2006 8:36 pm
pneumatic air cannon

Last post by SpudStuff
Replies: 17
by day » Thu Oct 19, 2006 8:33 pm
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I have never built a spud gun before, so I am starting slow and simple. My plan is to build a pneumatic air cannon. I think I have the design down,...

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NOOO. Teflon should start 2 threads up from the end of the fitting.

Wraps for the size of pipe:
1/16 -3/8 - 2-3 wraps
1/2 -1 - 4-6 wraps
1 1/4 and...
17 Replies

7777 Views

Last post by SpudStuff
Mon Nov 06, 2006 8:03 pm
puestin of co2

Last post by joannaardway
Replies: 16
by GOLDLOKS76 » Sat Nov 04, 2006 8:43 pm
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im new and i need to make and paintball gun im stuck on how to control the co2 from all flowing out. plz help im a retard!! this part ex: >

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That link requires a both fill and trigger valve.

It's hard to get around what you are trying to get around - don't try to beat the pneumatic...
16 Replies

4525 Views

Last post by joannaardway
Mon Nov 06, 2006 4:11 pm
CO2 in pvc?

Last post by SpudStuff
Replies: 42
by haulinick » Sat Oct 21, 2006 4:36 pm
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I was thinking about using a 12gram co2 bike pump to fill one of my mini pnuematics. My question is, is there any danger that using co2 directly into...

Last post

Very Well Put! :?
42 Replies

16006 Views

Last post by SpudStuff
Mon Nov 06, 2006 9:43 am
PVC Age

Last post by frankrede
Replies: 2
by rixth » Mon Nov 06, 2006 12:03 am

First post

How long would you use a cannon for before you thought it'd be unsafe due to age?

Last post

WHen your pipe becomes discolored, warped or sunrotted.
Your pipe has dates on it?Im jealous.

2 Replies

1546 Views

Last post by frankrede
Mon Nov 06, 2006 1:55 am
MadPiper Rifle

Last post by MrCrowley
Replies: 16
by PCGUY » Sat Feb 05, 2005 4:14 pm
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MADPIPER RIFLE

Provided By - MadPiper

Last post

1:was pimps post even aimed at demon?it could've been spudstuff if you read page 1.
2:pimp posted that ages ago and you complain now.now thats why i...
16 Replies

14750 Views

Last post by MrCrowley
Sun Nov 05, 2006 9:50 pm
Kyle1292 Piston Valve Thread

Last post by SpudStuff
Replies: 28
by kyle1292 » Wed Nov 01, 2006 9:22 pm
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hi, i was wondering how a piston valve works and if any1 had plans to make 1 becuase i want to put 1 in my next cannon. THX

Last post

Right below the login button!
28 Replies

7934 Views

Last post by SpudStuff
Sun Nov 05, 2006 8:42 pm
Soo Cute!

Last post by ProfessorAmadeus
Replies: 7
by SpudStuff » Sun Nov 05, 2006 4:06 pm

First post

This is my mini pneumatic i made today from spare parts laying around. The barrel is a bic-pen tube inside 3/8 air hose with a 1/2 sleave for aim....

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I like it. It would be fun just to play with but a pain to pump up. Your guns perfomance seams fine to me because you using a fitting for the chamber.

7 Replies

3300 Views

Last post by ProfessorAmadeus
Sun Nov 05, 2006 6:19 pm
Help with Effective Silencer

Last post by THEMOST
Replies: 13
by kyle1292 » Mon Oct 30, 2006 9:24 pm

First post

Hi, im making a pnuematic rifle and i need help i can't figure out an effective way to make a silencer.... any plans or help or even ideas are...

Last post

To build a silencer you drill holes at the end of the barrel (about 6 inches long). then wrap it in cotton and fit another pvc tube over the top,...

13 Replies

5395 Views

Last post by THEMOST
Sun Nov 05, 2006 6:17 pm
max length of hose for moded valve

Last post by boilingleadbath
Replies: 8
by judgment_arms » Sat Nov 04, 2006 5:02 pm

First post

What is the maximum safe length of a hose for a pneumatically modified sprinkler valve?
Would 3 to 4 feet be to long?

Last post

Oh, Oh!
I have a animated .gif consisting of a couple dozen GGDT simulations of a sprikler valve (valve position vs. time vs. pilot volume).

...or,...

8 Replies

3026 Views

Last post by boilingleadbath
Sun Nov 05, 2006 3:36 pm
Junkyard Dog

Last post by killagorrila99
Replies: 7
by PCGUY » Sat Feb 05, 2005 4:12 pm

First post

JUNKYARD DOG

Provided By - Vegemite

This is something a little bit different, note the extra barrels, utilizing the valve exhaust for a smaller...

Last post

Its all thinwalled, But whatever, Nice aussie gun.

7 Replies

11092 Views

Last post by killagorrila99
Sun Nov 05, 2006 7:38 am
Paintball Barrel

Last post by Recruit
Replies: 9
by kyle1292 » Sat Nov 04, 2006 9:25 pm

First post

What size barrel do u use for a pb gun?

Last post

Take a paintbal and try ito stick it down pipes of different sizes. the ones that is snug is the one you want.

9 Replies

3330 Views

Last post by Recruit
Sun Nov 05, 2006 3:49 am
Could someone...?

Last post by rixth
Replies: 10
by SquishY » Sun Oct 29, 2006 6:15 pm

First post

run a GGDT on what I'm going to be building in the very near future? 4 x24 chamber, 2.5 x6' tennis ball barrel, and a 2.5 barrel sealing piston with...

Last post

I beg to differ.

I have a ball valve cannon, the valve is 2.12 ID, same as my barrel.

With a 10-15% Cv, it predicts 112m for a 50g lemon at 40psi....

10 Replies

3034 Views

Last post by rixth
Sun Nov 05, 2006 1:17 am
pneu mini gun

Last post by PCGUY
Replies: 4
by potatoflinger » Fri Nov 03, 2006 12:28 pm

First post

does onyon know how to build a pneumatic mini gun :?:

Last post

Listen to what people tell ya and don't post in the wrong section. This is your only warning.

4 Replies

2369 Views

Last post by PCGUY
Sat Nov 04, 2006 10:55 pm
Need Some Design Help: Co2 Powered Nerf Rocket Launcher

Last post by Indigoz
Replies: 9
by Indigoz » Thu Nov 02, 2006 9:47 pm

First post

Hello Everyone,
I am looking to try and make a simple portable Nerf launcher for paintball games and scenario tank killing.. I am new to this but I...

Last post

Thank you all! Btw Pimpman I was searching soliniod and valve and that was a bit to general I guess. I'm going to try and write up a basic blue print...

9 Replies

11407 Views

Last post by Indigoz
Sat Nov 04, 2006 8:56 pm
flow coefficient?

Last post by Bipedal
Replies: 17
by judgment_arms » Sat Oct 28, 2006 7:59 pm
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Say, what I is the flow coefficient of a 3” coaxial piston valve?
I need to know for GGDT. Thanks all for answering all my questions.

Last post

the flow of water through a valve at 60 oF in US gallon/minute at a pressure drop of 1 lb/in2
17 Replies

9063 Views

Last post by Bipedal
Sat Nov 04, 2006 8:21 pm

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