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

1201451 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

604827 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

857705 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

1020781 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

392550 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

100037 Views

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

Topics

all metal piston valve gun

Last post by BigJon
Replies: 5
by BigJon » Mon Oct 08, 2007 5:51 pm

First post

Well it took me quite some time to build this but I am so glad I finally finished it.
This is an all metal gun with a berrel sealing piston valve....

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LikimysCrotchus5 it is not soldered it is just threaded steel thats all.
And thanks for the suggestions on breech loading.

5 Replies

2547 Views

Last post by BigJon
Mon Oct 08, 2007 7:47 pm
Wrinkled ductape on piston

Last post by jrrdw
Replies: 37
by noob of noobs » Sat Sep 15, 2007 10:08 pm
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As many of you may know, I'm trying to build a barrel sealing piston valve. Yes, it is taking ages, thanks to my new schedule which involves school,...

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Pump it up then unscrew the tee the lines are hooked to. Unscrew it fast, put flour down the barrel so you know when/if it fires. If it fires when...
37 Replies

7316 Views

Last post by jrrdw
Mon Oct 08, 2007 6:38 pm
Mauler valve and family

Last post by clide
Replies: 8
by ShowNoMercy » Thu Oct 04, 2007 7:43 pm

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What are the general reactions to the mauler family of valves? I am looking at a smaller sized one and I am curious to see if anyone has bought one.

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I am not entirely sure, if you go to the trouble to make nice smooth contours I think you can increase it, but there is always some pressure drop...

8 Replies

2126 Views

Last post by clide
Mon Oct 08, 2007 12:17 pm
HPHH (High Pressure HandHeld)

Last post by jackssmirkingrevenge
Replies: 9
by DYI » Sun Oct 07, 2007 8:08 pm

First post

On Saturday I tried my last idea to get my burst disk cannon to seal properly without spending large sums of money. This idea failed. Consequently,...

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I'll probably try to make a spring loaded mechanism for it this week. Does anyone know what kind of opening times a spring loaded ball valve can get?...

9 Replies

4575 Views

Last post by jackssmirkingrevenge
Mon Oct 08, 2007 9:22 am
3/4" qev cannon ggdt fps

Last post by MrCrowley
Replies: 26
by ALIHISGREAT » Sat Oct 06, 2007 1:08 pm
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could someone put this into ggdt form me to get the fps and range.

a 3/4 qev
1.5 90cm long chamber
3/4 130cm long barrel
5g paintball projectile....

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Yeah but they only apply to the piston British QEV, not the American 'phragm one I have.
26 Replies

4491 Views

Last post by MrCrowley
Sun Oct 07, 2007 11:55 pm
Pneumatic Launcher Science Project

Last post by jackssmirkingrevenge
Replies: 25
by Lentamentalisk » Tue Sep 25, 2007 8:28 pm
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I am going to make a pneumatic launcher of some sort for a completely open science project that i need to do. I want it to be fairly simple, yet...

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Anyone know what the drag coefficient of a golf ball is?

According to this study , around 0.4
25 Replies

6678 Views

Last post by jackssmirkingrevenge
Sun Oct 07, 2007 10:44 pm
My first cannon is FINISHED!

Last post by Lentamentalisk
Replies: 17
by HaiThar » Fri Sep 28, 2007 7:20 pm
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I finished it....I finally finished it...(not quite, tbh, I'm still waiting for the endcap to set and cure but...)It's finished COMPLETE with...

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being addicted to photography, if im in the right mood, i can hold my camera almost perfectly still for up to 1/4 of a sec...
17 Replies

5765 Views

Last post by Lentamentalisk
Sun Oct 07, 2007 7:12 pm
How to seal a servicable piston?

Last post by noname
Replies: 10
by gwoloshyn » Sun Oct 07, 2007 3:34 pm

First post

I want to make my piston valve serviceable by drilling 8 screws around the pilot area, I'm sure you all know what I'm talking about. If I can't...

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I've never used a tap for screws, and nothing using them have blown apart. As long as the hole you drill isn't too small, and there isn't too much...

10 Replies

2600 Views

Last post by noname
Sun Oct 07, 2007 6:13 pm
Ideas/Plans/Questions For My First Pneumatic

Last post by Redcoat
Replies: 7
by miskaman » Sun Oct 07, 2007 1:09 pm

First post

So I've built 2 combustions, but they were too simple and don't as far as a pneumatic, so I want to make a pneumatic.

First off, what would it cost...

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so what kind of fitting is pressure rated and where can I find them?

One more thing. What should I use for a glue to attach a pressure gauge to the...

7 Replies

3354 Views

Last post by Redcoat
Sun Oct 07, 2007 5:26 pm
Coaxial piston valve problem

Last post by Tom
Replies: 7
by Tom » Sun Oct 07, 2007 12:27 pm

First post

I have some problems with my piston valve, it´s a coaxial barrel sealing. The problem is that when I charge the valve and let the pilot air go the...

Last post

@BTB
What is the shippings price, i can't found it at the website.
GR.Tom

7 Replies

1910 Views

Last post by Tom
Sun Oct 07, 2007 2:37 pm
Anyone wanna hop on aim and Discuss my failings at GGDT?

Last post by noname
Replies: 7
by socoj2 » Sat Oct 06, 2007 8:38 pm

First post

Seriously, by my calc my 3/8s QEV should be able to flow 128 Cubic inchs at 100 psi in 25 m/s

Using another spreadsheet for chamber to barrel...

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Really? I always thought they were. I guess I'd never had 2 of them taken apart side by side before.

7 Replies

1881 Views

Last post by noname
Sun Oct 07, 2007 10:01 am
Copper Paintball gun

Last post by spanerman
Replies: 26
by spanerman » Wed Oct 03, 2007 10:45 am
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Hi, in the vilage where i live a few guys i know(older) do ''drivebys'' with painball guns so i have been asked to build a cannon to combat these...

Last post

im not sure il go wiegh one now...and mesure the exact OD...
26 Replies

5151 Views

Last post by spanerman
Sun Oct 07, 2007 8:17 am
How to make a Supah Valve

Last post by spanerman
Replies: 20
by octane89 » Fri Oct 05, 2007 9:22 pm
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This is not my design, I was going to post it to help anyone that is intersted. So I will post the man's name who did the picture shown once I find...

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^ and a supah hasnt got electro magnets.... :?
20 Replies

6640 Views

Last post by spanerman
Sun Oct 07, 2007 5:50 am
Flat CO2 Backpack

Last post by goose_man
Replies: 8
by goose_man » Sat Oct 06, 2007 12:29 pm

First post

I'm starting to get into paintball a bit, and I would like a CO2 backpack, but I don't just want a big cylindrical tank strapped to my back. I was...

Last post

Thank you...I'll defanitely consider this system.

-goose_man

8 Replies

2578 Views

Last post by goose_man
Sun Oct 07, 2007 3:59 am
suppressed co-axial

Last post by jackssmirkingrevenge
Replies: 6
by jave101 » Fri Oct 05, 2007 1:44 am

First post

this is my old co-axial with suppressors attached to all venting points including the pilot valve exhaust. the suppressor on the front works very...

Last post

hehe no worries, I'm sure others have done it before me ;)

6 Replies

3768 Views

Last post by jackssmirkingrevenge
Sun Oct 07, 2007 1:55 am
Improved Semi-Auto Shell Gun -From_Hamsterdam

Last post by From_Hamsterdam
Replies: 10
by From_Hamsterdam » Fri Oct 05, 2007 9:51 pm

First post

Edit: Any help on naming this would be greatly appreciated.

i haven't posted in a while as i have just started working full time.

Patent Pending....

Last post

What's wrong with someone else wanting to try it as well? That's what helps us advance our hobby, sharing ideas and seeing if someone else can...

10 Replies

5290 Views

Last post by From_Hamsterdam
Sun Oct 07, 2007 12:41 am
Golf ball barrel? Tennis ball barrel?

Last post by noname
Replies: 9
by BrerRobot » Sat Oct 06, 2007 10:54 am

First post

I'm making my first launcher. I have read some people with 1.5 barrels for golf balls. The 1.5 inch pipe i have will not fit a golf ball.
I also have...

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Make sure all of your parts say NSF-pw on them, especially the 4 and 3 ones. Usually people go for cheaper fittings, and not better quality ones....

9 Replies

9032 Views

Last post by noname
Sun Oct 07, 2007 12:16 am
bassmaster's pneumatic sniper rifle

Last post by potatoflinger
Replies: 26
by bassmaster1228 » Wed Jul 25, 2007 9:29 pm
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this here is my sniper rifle i built today. i used a sprinkler valve, 3/4in. pipe for the barrel and stock and 2 pipe for the air chamber....

Last post

thats so cool nice job man
going to start building a pb sniper in a few days and i saw the trigger system u used and some other guys used it as well...
26 Replies

9094 Views

Last post by potatoflinger
Sat Oct 06, 2007 8:49 pm
Read this before posting!

Last post by paaiyan
Replies: 4
by boilingleadbath » Sun Jul 30, 2006 6:52 pm

First post

I'd venture to geuss that 80% of time, your problem is one of the following:

1) My sprinkler valve makes loud noises!
It's honking . Get a better...

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Question... I have modded my sprinkler valve, and my barrel still honks.. does this mean that I need a longer barrel?

The barrel has nothing to do...

4 Replies

8446 Views

Last post by paaiyan
Sat Oct 06, 2007 6:42 pm
my Big Cannon

Last post by DYI
Replies: 14
by cenzo188 » Wed Oct 03, 2007 6:44 pm

First post

my first and best pneumatic cannon, i call it the Big Cannon. it has a 1 inch bore. Launches C batteries really well, and just about anything else...

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I'd only use one in a combustion, but being DWV doesn't make it any less threaded or pluggish.

Pluggish ... Yeah, I know that a cleanout cap is...

14 Replies

4385 Views

Last post by DYI
Sat Oct 06, 2007 5:24 pm
Grey Electrical PVC???

Last post by super spuder
Replies: 4
by nathan9493 » Fri Oct 05, 2007 6:32 pm

First post

Hey Guys,

I'm an electrician and have acces to lots of grey PVC. It looks the same and know its not listed as being pressure rated. But I think its...

Last post

you could use it as a barrel

4 Replies

1920 Views

Last post by super spuder
Sat Oct 06, 2007 8:24 am
Blowgun Question

Last post by DeuceX
Replies: 11
by ben8763 » Mon Oct 01, 2007 3:15 am

First post

I am new to the art of cannon making and i was looking at some simple cannons i could build

you now the cannons with a modded sprinkler solenoid and...

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Its because some blowguns dont seal if you pressurize opposite the traditional flow. From what I understand and have seen, output pressure can cause...

11 Replies

3291 Views

Last post by DeuceX
Fri Oct 05, 2007 9:46 pm
Newbie question about LG 54004

Last post by Intel Xeon
Replies: 1
by DeuceX » Fri Oct 05, 2007 9:35 pm

First post

I am just about done with my first gun and before I head off to Home Depot, I wanted to get some ideas about the Lawn Genie 54004. From what I read...

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You can put the hole anywhere in the valve top, as long as it provides access to the pilot area, If I am not mistaken.

1 Replies

1389 Views

Last post by Intel Xeon
Fri Oct 05, 2007 9:44 pm
coaxial piston with sprinkler valve, very powerful

Last post by st.croixsurfer
Replies: 28
by jave101 » Wed May 24, 2006 1:38 am
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this is the latest cannon i have made the barrel is 2 foot of stainless steel that fits marbles exactly and the pressure chamber is 2 inch pressure...

Last post

how did you seal the barrell to the cap
28 Replies

13618 Views

Last post by st.croixsurfer
Fri Oct 05, 2007 8:28 pm
simple pilot valve

Last post by Marco321
Replies: 14
by Tom » Thu Oct 04, 2007 7:20 am

First post

I just desgind a simple pilot valve for my coaxial piston valve that I´m working on. I think i will try to make a housing for the valve, but first I...

Last post

That i believe that is where you are wrong, you see this diagram of this blowgun.

If you have a 5mm thick opening then the pressure at 100 psi will...

14 Replies

3161 Views

Last post by Marco321
Fri Oct 05, 2007 7:40 pm

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