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

1124884 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

552079 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

821092 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

966910 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

374828 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

92379 Views

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

Topics

Help with piston

Last post by velocity3x
Replies: 6
by Packols » Sun Apr 08, 2012 12:11 am

First post

last night i just finish my piston air gun it work like a pengun but bigger. i use a tot gule as a piston and it fit very wall. when the epoxy dry i...

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proper grammer helps

Packols is in Thailand and his english is far superior to yours. You should be nice to him.....someday you may find yourself...

6 Replies

2460 Views

Last post by velocity3x
Tue Apr 10, 2012 3:11 pm
Damage pics of varrious fruits

Last post by kydavies
Replies: 6
by kydavies » Sat Apr 07, 2012 7:35 pm

First post

just some damage pics after a few hours of shooting my 1/2 ball Valve cannon (unposted because it's not 100% done) that I use for shooting lead shot...

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Correct, The doom melon still needs some work......

..........done at 300psi by a 10mm lead ball :D

Nice shots. Good thing the starving children...

6 Replies

2495 Views

Last post by kydavies
Tue Apr 10, 2012 1:11 am
MINI troubles

Last post by jackssmirkingrevenge
Replies: 5
by urgle the danish cow » Sun Apr 08, 2012 12:15 pm

First post

I have been trying to make a few mini co-axial piston valve guns and have not been succeeding very much. the problem i keep having is that the piston...

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do the math, here's an example:

5 Replies

3266 Views

Last post by jackssmirkingrevenge
Sun Apr 08, 2012 5:57 pm
ebay qevs

Last post by Major Collins
Replies: 2
by Major Collins » Sun Apr 08, 2012 6:22 am

First post

i was looking at getting a qev with 1/2 inch inlet port.
pt=Pneumatic_Hydraulic_Valves_Parts&hash=item3a726f8fcf#ht_1721wt_1344
this is the one i...

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i thought about getting the one i posted for semi auto use

any justified reason for getting other one instead?

2 Replies

3506 Views

Last post by Major Collins
Sun Apr 08, 2012 6:50 am
I want to make a paintball gun , would this work

Last post by beastmode986
Replies: 8
by beastmode986 » Fri Apr 06, 2012 7:45 pm

First post

Im going to make a pb gun and I want to use the qev slide valve semi auto setup. I will attach a reg then a pb tank probably a 13/3000 tank as an air...

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ok sorry for posting an uneeded thrread earlier anyway can someone help me understand the bfb better i dont quite understand

8 Replies

3082 Views

Last post by beastmode986
Sat Apr 07, 2012 7:53 pm
Want to make an air compressor

Last post by beastmode986
Replies: 8
by beastmode986 » Thu Apr 05, 2012 4:49 pm

First post

Ok so since my air compressor broke I want to build an air compressor as cheap as possible. I have one 8 gallon tank from my compressor and I have...

Last post

Ok thanks

8 Replies

2216 Views

Last post by beastmode986
Sat Apr 07, 2012 1:30 pm
Italian Bingo Rifle _ Qev + Slide Valve

Last post by Gun Freak
Replies: 10
by frappu » Sat Mar 31, 2012 4:29 am

First post

Hi spudders,this is my first post in this section.Today i will show you my last creation.why bingo?Images are self explanatory.
The design is...

Last post

Awesome! That looks pretty kick ass :D

10 Replies

6789 Views

Last post by Gun Freak
Sat Apr 07, 2012 10:51 am
My first pneumatic rifle (incomplete)

Last post by Theegle
Replies: 2
by Theegle » Sat Apr 07, 2012 4:48 am

First post

So I Was going to make one like this except I found some spare parts lying around so I decided to make this. It's like this except has a longer...

Last post

Sorry I can't add it for some reason it takes to long and i'm using portable (usb) internet at the moment

2 Replies

1488 Views

Last post by Theegle
Sat Apr 07, 2012 4:53 am
My GB cannon is done! ( UPDATED!!!) now with damage pics

Last post by jsefcik
Replies: 26
by unisonmind » Fri Sep 14, 2007 8:00 pm
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after being out of town for a lot longer then i wanted. its done and it has more power then any of my guns to date. this is gun #6 and my 2nd piston...

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no to up rise this topic, but unisonmind sold me this valve and its so dam powerful and its not even funny!!! :D
26 Replies

11372 Views

Last post by jsefcik
Fri Apr 06, 2012 8:57 pm
My Latest pneumatic Project

Last post by jrrdw
Replies: 12
by DEATHSTAR » Wed Apr 04, 2012 10:08 am

First post

Hello all, I'm new here, and I decided to join when I read some of JSR's innovative stuff, and really when I read Hotwired's stun-gun thread....

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I Thought of bringing, a firearm, course there's laws about crossing state lines with one...was going to order a Cap-n-ball revolver but they're...

12 Replies

7298 Views

Last post by jrrdw
Fri Apr 06, 2012 4:15 pm
Solenoid actuated hammer valve

Last post by dewey-1
Replies: 26
by wyz2285 » Tue Mar 27, 2012 7:44 am
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My 12v DC solenoid is working :D :D
Now I´m using it to pilot my chamber-seal piston repeater 8)
The video shows the system in function, also you...

Last post

On your schematic, R2 is reducing the voltage to the opto-coupler and r3 is a pull-down resistor for the MOSFET gate ?

That is correct.

Here is a...
26 Replies

8452 Views

Last post by dewey-1
Thu Apr 05, 2012 10:36 pm
My first airgun (finally) :)

Last post by Theegle
Replies: 38
by r00kie » Mon Sep 05, 2011 3:04 am
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Hi guys,

(for tl;dr skip these first 2 paragraphs)
I made a few topics ( 1 , 2 ) almost a year ago with some questions on pipe sizing and advice on...

Last post

wow oops sorry :oops: lol. I noticed it at the top of my page so I thought... O well thanks for the heads up
38 Replies

20510 Views

Last post by Theegle
Thu Apr 05, 2012 7:21 am
Help with my 2ltr tank...

Last post by sharpshooter11000
Replies: 3
by killerbanjo » Sun Apr 01, 2012 8:26 pm

First post

Hi guys, got this 2ltr tank off ebay and want some help identifiying the thing on top of it!

More bad webcam pics for you :roll:

The whole thing:...

Last post

The air tank that I used on my QEV gun (in my sig) was like that, IIRC it had something like that on top. My dad said it was an on demant valve/pin...

3 Replies

1310 Views

Last post by sharpshooter11000
Wed Apr 04, 2012 10:16 am
building my first pneumatic with hammervalve full metal

Last post by quark1980
Replies: 29
by quark1980 » Thu Jan 26, 2012 3:43 pm
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hi there,

i have been lurking around here for some time now. and decided i wanted to try out my ideas.

i wanted to make a multishot sniping rifle...

Last post

yup, the lever action one 8)

@jsr:

close.... a file and a metalsaw (or is it called hacksaw?)

did use the angle grinder for the rougher pieces...
29 Replies

17859 Views

Last post by quark1980
Fri Mar 30, 2012 4:07 pm
compact pneumatic progress v2

Last post by Brian the brain
Replies: 6
by Major Collins » Fri Mar 30, 2012 5:43 am

First post

updating this thread

i was able to make a more compact piston valve with less pieces.Piston travel is about a 1 cm and flow is good.

here are some...

Last post

You had me at compact

:D

6 Replies

2415 Views

Last post by Brian the brain
Fri Mar 30, 2012 1:40 pm
Promethean rifles

Last post by Brian the brain
Replies: 18
by joepage2008x2 » Tue Mar 27, 2012 3:18 pm
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Hi, joined this site ages ago, thought someone may like to see.

I have created a website called prometheanrifles.co.uk

Go to P22CMk1 to see current...

Last post

After seeing the pictures of his gun my paants feel toight

Let's not hijack this thread any far'sher..

:D
18 Replies

6649 Views

Last post by Brian the brain
Fri Mar 30, 2012 1:28 pm
compact pneumatic progress

Last post by CooperJS
Replies: 6
by Major Collins » Wed Dec 21, 2011 7:12 am

First post

following progress on this thread

i deliver ...

a few minor attachments. mainly the quick connect , a flaw with the old design was you cant...

Last post

Me personally i think its pretty cool!!!

6 Replies

2613 Views

Last post by CooperJS
Fri Mar 30, 2012 7:07 am
Inline Sprinkler Valve vs 90 degree Sprinkler Valve

Last post by kydavies
Replies: 4
by slipknotdan316 » Thu Mar 29, 2012 12:38 am

First post

Are there any differences between the two types?
More Power, Better Flow, Reliability, ease of modification?

I'm in the process of building a...

Last post

the 1 hunter SRV valve modds really nicely :) it has a guide for the spring (spring sits on the ouside) which happens to be almost the perfect size...

4 Replies

10046 Views

Last post by kydavies
Fri Mar 30, 2012 1:13 am
need advice on floatin o-ring

Last post by Gippeto
Replies: 14
by JDP12 » Wed Mar 28, 2012 4:50 pm

First post

So as I was talkin to ramses about machining my bolt, he proposed that I should use a floating o-ring, which i had not thought about. I've never used...

Last post

Have a vice?

Go slow. :)

14 Replies

4839 Views

Last post by Gippeto
Thu Mar 29, 2012 4:17 pm
Pnuschnikov 2.0

Last post by Brian the brain
Replies: 5
by Brian the brain » Sun Dec 18, 2011 11:15 am

First post

I have been running designs through my head about a bullpup forced blowback PCP automatic.

Two basic idea's so far
#1: inline piston and snapvalve...

Last post

That pic basically is the plan.
The second one I mean.
The first one would be the alternative.

I'm not really sure if I want to put this much...

5 Replies

1951 Views

Last post by Brian the brain
Thu Mar 29, 2012 12:19 pm
Is that a pop off valve in your pocket or are you just....

Last post by Zeus
Replies: 3
by killerbanjo » Tue Mar 27, 2012 2:57 am

First post

...pleased to see me :D

Check out this beast, for a great price!

Someone buy it, i have no use for it but i want one because it SO BIG!

Last post

Yeah, now it's all pretty photography, little pop noises and high speed low drag, can't help myself footage.

I was thinking the same with a popoff...

3 Replies

1493 Views

Last post by Zeus
Tue Mar 27, 2012 5:11 am
My full automatic PVC AA battery gun (600 RPM)

Last post by killerbanjo
Replies: 49
by e_smith2000 » Thu Nov 03, 2011 1:40 am
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I built a full auto paintball gun using mostly PVC piping. I decided to modify it by rebuilding the bolt mechanize from the ground up. Now it can use...

Last post

Thats what i just PMed him xD
49 Replies

37348 Views

Last post by killerbanjo
Sun Mar 25, 2012 8:19 am
My first qev gun

Last post by TheNewKid22
Replies: 5
by TheNewKid22 » Mon Mar 19, 2012 1:07 am

First post

Hey spudfiles

I recently built this QEV cannon and have been playing around with it, this is the first one i have built. I like the gun and have...

Last post

Nice gun,i will try to build something similar to the gun you made.I will use the gun in airsoft and shoot BBs with it like a sniper :D

yeah...

5 Replies

2266 Views

Last post by TheNewKid22
Sun Mar 25, 2012 3:23 am
3" Sprinkler Valve Cannon

Last post by slipknotdan316
Replies: 3
by Jimmy K » Tue Mar 20, 2012 2:04 pm

First post

While I was home for spring break, I decided to throw together another quick pneumatic cannon (AND actually start on my first hybrid! but that's a...

Last post

Some can goods would make excellent projectiles.

3 Replies

3154 Views

Last post by slipknotdan316
Sat Mar 24, 2012 11:33 pm
Pneubmatic 8,999 (now with Science!)

Last post by Fnord
Replies: 7
by Fnord » Tue Mar 20, 2012 10:36 pm

First post

Uh, yeah. I finally posted it.

I wanted a general use and test platform pneumatic so I made this. I have some experimental data at the end which I...

Last post

Little penetration test for sh*ts n' giggles.

15 gram chunk of round file vs. 0.130 (3.3mm) mild steel. Technically made it through, but the 'exit'...

7 Replies

4073 Views

Last post by Fnord
Fri Mar 23, 2012 11:27 am

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