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

1668452 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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First post

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

754773 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

982442 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...

Last post

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

1165510 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...

Last post

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

466444 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

131509 Views

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

Topics

Piston Valve Troubleshooting

Last post by ktap
Replies: 12
by ktap » Wed Nov 16, 2011 11:29 am

First post

I currently am making a new all metal spudgun, however this is my first piston valve design.

Currently, the spudgun is completely finished, the...

Last post

Well, epoxy, as always, fixes everything. Works great now. Thanks for the help.

Any 1/2 high pressure QEVs anyone know of? Ball valves are great for...

12 Replies

6605 Views

Last post by ktap
Thu Nov 17, 2011 2:56 pm
Soda stream spud gun project

Last post by AircannonSweden
Replies: 15
by AircannonSweden » Mon Nov 14, 2011 3:10 am
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I think i will build one something like this:

Pics when its done come soon. I just need a coupler from R15 - R8 for the soda stream tank :)

Last post

what is the the thread size on an australian soda stream tank? is it 3/8

some screw threads to soda stream :)
15 Replies

9825 Views

Last post by AircannonSweden
Wed Nov 16, 2011 2:24 am
Mt paint grenade launcher :D

Last post by conkfa47
Replies: 3
by conkfa47 » Thu Nov 10, 2011 2:47 am

First post

I recently finished a launcher i plan to use to fire paint grenades in paintball games. Here's a video of it firing:

Im in the process of making a...

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You probably tried this already, but maybe if you got rid of the sabot and just used the latex grenade with a bunch of baby power it would still go...

3 Replies

2689 Views

Last post by conkfa47
Sun Nov 13, 2011 6:18 pm
check valves on air pumps?

Last post by Gun Freak
Replies: 1
by urgle the danish cow » Sun Nov 13, 2011 11:58 am

First post

i discovered that my local store carries many check valves and i am inspired to make an air pump for the ones i buy always break.
i understand the...

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The air pressure generated on the stroke opens it; once the pressure equalizes, the spring closes it.

1 Replies

1156 Views

Last post by Gun Freak
Sun Nov 13, 2011 12:42 pm
Max 400 PSI compressor

Last post by High-PSI
Replies: 2
by High-PSI » Sat Nov 12, 2011 4:11 pm

First post

Hey Guys,

I just found a slightly used MAX 400 PSI compressor for 1/2 price. I have been looking for one for a long time now and finally found one!...

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Mine is the model 1050. But, yes, pretty much the same thing.

Yes fridge compressors can give good pressure. But, they take along time to air up. I...

2 Replies

1079 Views

Last post by High-PSI
Sun Nov 13, 2011 8:15 am
New damage vids of the LogSplitter

Last post by jackssmirkingrevenge
Replies: 4
by Daltonultra » Sat Nov 12, 2011 6:00 pm

First post

Old thread with intro:

EDIT: Before anyone comments about the reducer, EVERY part on my cannon is NSF-Pw, including the reducer on the barrel.

New...

Last post

hehe nice!

Love the fact that your recoil system is a human version of this:

:D

4 Replies

2632 Views

Last post by jackssmirkingrevenge
Sun Nov 13, 2011 3:57 am
Help with a multiple shot design

Last post by Gun Freak
Replies: 14
by crcowboyfan » Thu Nov 10, 2011 9:46 pm

First post

I want to build a simple air cannon that can fire multiple shots (5 ish) off a single air fill. I was thinking some sort of 2 chamber design where 1...

Last post

Looks like you're right, them tees have threads on the 1/2 ports though.

14 Replies

4764 Views

Last post by Gun Freak
Sat Nov 12, 2011 8:13 am
General Calculations?

Last post by SpudBlaster15
Replies: 6
by vakimo » Fri Nov 11, 2011 7:07 pm

First post

Im sure these are on this site somewhere, but i havent exactly found what im looking for. does anyone know some links or formulas off hand that could...

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Lorem ipsum dolor sit amet, consectetur adipiscing elit. Cras nec placerat erat. Vivamus dapibus egestas nunc, at eleifend neque. Suspendisse...

6 Replies

4639 Views

Last post by SpudBlaster15
Fri Nov 11, 2011 11:29 pm
Full automatic pneumatic PVC paintball gun - tutorial

Last post by Brian the brain
Replies: 12
by e_smith2000 » Wed Nov 02, 2011 8:58 pm

First post

Hi ya'll! a few years ago i found a vague description on how to make a full auto paint ball gun, and i worked it out and built one. Now - 2 years...

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Didnt watch all the vids...sorry...but a spring and a bb could make a pop-off..

I think I have seen the same old tutorial 6 years ago....but I'll be...

12 Replies

8229 Views

Last post by Brian the brain
Fri Nov 11, 2011 10:57 am
Sodastream tank threads?

Last post by jackssmirkingrevenge
Replies: 1
by AircannonSweden » Thu Nov 10, 2011 7:33 am

Heeeyyyy guys! I wonder what threads that is on a sodastream tank for the Co2?

1 Replies

9177 Views

Last post by jackssmirkingrevenge
Thu Nov 10, 2011 7:42 am
Been away from the hobby for a long time...

Last post by jackssmirkingrevenge
Replies: 15
by microman171 » Wed Nov 09, 2011 10:46 pm
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Hey Guys,

I used to be an active member back in 2008. Due to my lack of a job, I could never really afford to spend money on anything (interesting...

Last post

I see that my extremely modest video title has had zero effect on video views. Back to the drawing board on my YouTube video views theory :wink:...
15 Replies

8751 Views

Last post by jackssmirkingrevenge
Thu Nov 10, 2011 4:20 am
Manual Pulse Valve

Last post by POLAND_SPUD
Replies: 1
by Lazyboy » Thu Nov 10, 2011 2:42 am

First post

Hi

This is a valve I have design

for this gun

The reason being it will be used with an external HPA kit and I want to save as much air as...

Last post

I have brought this Clippard Valve, but it takes way to long to reset that's an air actuated valve right ?? can't you unscrew that reserviour on it??...

1 Replies

1531 Views

Last post by POLAND_SPUD
Thu Nov 10, 2011 2:51 am
HP inline valves?

Last post by Lockednloaded
Replies: 13
by Lockednloaded » Mon Nov 07, 2011 11:34 pm

First post

I've been doing a lot more designing then building lately, but I think the holiday season is coming up, and I'll have some free time to actually...

Last post

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That's what I was thinking, except with a rubber diaphragm with a metal washer for support. Does anyone know a good way to drill...

13 Replies

3706 Views

Last post by Lockednloaded
Wed Nov 09, 2011 8:56 am
Best bushings to reduce from 2" chamber to 1" thre

Last post by Gun Freak
Replies: 3
by conkfa47 » Wed Nov 09, 2011 1:37 am

First post

I was just wondering what would be the best and simplest way to reduce a 2 chamber to a 1 thread to screw into my 1 sprinkler valve? I made a chamber...

Last post

2 coupling -> 2 spig x 1 FPT

If serviceability is needed:
2 female adapter -> 2 MPT x 1 FPT

If you can't get said bushing:
2 female adapter -> 2...

3 Replies

1491 Views

Last post by Gun Freak
Wed Nov 09, 2011 6:43 am
Sprinkler Valve Trigger For Semi Auto Paintball gun?

Last post by Mr.Tallahassee
Replies: 6
by lklaussen » Tue Nov 08, 2011 6:19 pm

First post

Hi all, I was playing around with paintballs and a broken ball valve (the handle could spin 360 degrees, but still functions) and I found I am able...

Last post

Solenoids work either way (I tried it not too long ago), so you should be ok. He wanted to reverse polarity to close the solenoid versus opening it.

6 Replies

2508 Views

Last post by Mr.Tallahassee
Tue Nov 08, 2011 7:21 pm
Piston Valve Sealing, but not Filling?

Last post by jackssmirkingrevenge
Replies: 29
by vakimo » Sat Nov 05, 2011 10:57 pm
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I built a small spud gun to test out the piston valve concept, but im having some problems. The gun fills very nicely from 20-200psi, but when the...

Last post

The tank was bought new(empty) and was filled with compressed air from a local scuba tank supplier. (on a side note, this is a nice way of filling a...
29 Replies

7609 Views

Last post by jackssmirkingrevenge
Mon Nov 07, 2011 11:50 pm
High PSI internals?

Last post by RJB INDUSTRIES
Replies: 51
by Ocheeboy11 » Fri Oct 21, 2011 10:56 pm
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Hi, thought I'd ask a question or two after stalking the forums for two years XD

I am currently in the process of preparing to machining some...

Last post

Very well done... :P

RJB INDUSTRIES
51 Replies

13581 Views

Last post by RJB INDUSTRIES
Mon Nov 07, 2011 4:53 pm
make a BQE-04 qev seals.

Last post by jackssmirkingrevenge
Replies: 5
by victorjung » Sun Nov 06, 2011 5:56 am

First post

Hi everybody at first I want to apologize for my english...
I bought a BQE-04 on ebay, so it's a qev with 1/2 ports.
it seems to be great but I want...

Last post

Glad it worked out for you :) let's see it in action!

5 Replies

2522 Views

Last post by jackssmirkingrevenge
Mon Nov 07, 2011 12:42 am
Check valve piston?

Last post by Gippeto
Replies: 21
by sharpshooter11000 » Fri Nov 04, 2011 8:25 am
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I've been thinking of designs for a piston for a co-axial pneumatic and I haven't found anyone using a check valve in the piston to fill the chamber...

Last post

Too bloody complicated...(the flap idea not withstanding)..floating o-ring as a check is easy...as is using a u-cup seal.
21 Replies

5992 Views

Last post by Gippeto
Fri Nov 04, 2011 11:59 pm
36 caliber QEV shotgun/rifle 400 psi Repeater 22 shot mag

Last post by mpmrla
Replies: 9
by mpmrla » Sat Oct 29, 2011 5:18 pm

First post

This is my 36 caliber QEV gun. I chose .360 #000 buckshot for the ammo.
The Barrel is a 3/8 inch hydraulic brake seamless ss tube shrouded with a pvc...

Last post

Thanks everyone for the good advice and compliments

9 Replies

15217 Views

Last post by mpmrla
Thu Nov 03, 2011 6:03 am
Video 2nd Qev gun w/ iron sights

Last post by Goats spudz
Replies: 16
by Goats spudz » Sat Oct 29, 2011 5:45 pm
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Here is my second ever gun im 12 (13 in January) and it has homemade iron sights built from brass plate and copper, soldered to the barrel, the tape...

Last post

hello :P whats everybody doing
16 Replies

6741 Views

Last post by Goats spudz
Mon Oct 31, 2011 1:34 pm
Homemade scuba tank air cannon

Last post by Goats spudz
Replies: 6
by AircannonSweden » Sun Oct 30, 2011 5:41 pm

First post

My homemade scuba tank air cannon that i built myself. I build a new cannon now so pics come when it are finished.

Some facts: The tank i got from...

Last post

i agree with Technician1002 fill it with water and pressurize it to about as high as you can go and if it leaks, weld over it ;D

6 Replies

5121 Views

Last post by Goats spudz
Sun Oct 30, 2011 9:17 pm
QEV'S

Last post by Fexo180
Replies: 20
by Fexo180 » Thu Oct 27, 2011 5:22 am
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Will this QEV do the job? :twisted:

I have the SMC AQ3000-03.. all 3/8 threads.

Last post

nice what pressures do those quick connects hold up to

Well i am not really sure what they are spec'd at but i know i used to punch 250psi +...
20 Replies

4557 Views

Last post by Fexo180
Sun Oct 30, 2011 9:53 am
barrel / air chamber ratio

Last post by jackssmirkingrevenge
Replies: 1
by Major Collins » Sun Oct 30, 2011 5:47 am

one of my past experiments had a 70cm copper barrel (10 mm inner diameter) and for the air chamber i had the same length copper tube but in 22 mm...

1 Replies

2433 Views

Last post by jackssmirkingrevenge
Sun Oct 30, 2011 5:50 am
? About 1.5" valve for 3" barrel

Last post by Technician1002
Replies: 5
by Atattack » Sat Oct 29, 2011 4:15 am

First post

Would a 1.5 dust collector diaphragm valve be to small for a 3 barrel? I am assuming will be fine wanted to see if anyone has any first hand...

Last post

In testing various size barrels on my 2 inch valve cannon, 3 inch barrel will work, but with limited power. On a 2 inch valve the best power is with...

5 Replies

1822 Views

Last post by Technician1002
Sat Oct 29, 2011 11:54 am

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Pneumatic Cannons

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