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

1201389 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

604800 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

857677 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...

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

1020623 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

100026 Views

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

Topics

Tapping a gauge...

Last post by rad14701
Replies: 15
by flamerz14 » Tue May 01, 2007 6:15 am
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What exactly is 'tapping' a gauge to a chamber or a blogun like in the AMC ? and how d you do it?

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Is that where they got I'd 'tap' that from?
Yes, as in screwing male part into female female part ... Not be be confused with reaming ... But...
15 Replies

6931 Views

Last post by rad14701
Fri May 04, 2007 8:29 pm
Anti-siphon sprinkler valve

Last post by paaiyan
Replies: 5
by paaiyan » Fri May 04, 2007 3:26 pm

First post

So far I've only built one cannon, my monster 8 1/2 foot combustion. My next project will be a pneumatic, because I want power. I am going to use a...

Last post

So I totally thought sprinkler valves were more expensive than they really are. I was thinking along the lines of 30 bucks or something, my Lowes has...

5 Replies

1381 Views

Last post by paaiyan
Fri May 04, 2007 5:47 pm
diaphram QEV

Last post by Hotwired
Replies: 12
by origin unknown » Thu May 03, 2007 8:33 pm

First post

Would a diaphram QEV perform just as well as a piston QEV?

Last post

Unless you're in the UK you're going to have fun trying to find piston QEVs like that. The only located supplier for that type in the US only deals...

12 Replies

3060 Views

Last post by Hotwired
Fri May 04, 2007 5:47 pm
Sprinkler valve...

Last post by paaiyan
Replies: 57
by pyr0 » Tue Mar 27, 2007 3:40 pm
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Hi...
I'm new to pneumatic cannons so I was hoping a few people here could help me out. I was going to buy all of my items from spudtech.com, but...

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Any real difference between an anti-siphon valve and a regular one?
57 Replies

17804 Views

Last post by paaiyan
Fri May 04, 2007 4:36 pm
TIBS Launcher (New Piston)

Last post by userjjb
Replies: 6
by userjjb » Fri May 04, 2007 1:16 am

First post

The Two Inch Barrel Sealer (TIBS), a name I came up with so the title for this guy was less bland, heh. Originally completed a year or so ago, it was...

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Thanks everyone for the compliments :)

the only thing i would change, would be to have a 1/4' check valve instead on the BV on the filling...

6 Replies

4172 Views

Last post by userjjb
Fri May 04, 2007 4:05 pm
The Deathstik

Last post by rhyco
Replies: 7
by dethstik » Thu Feb 03, 2005 3:07 pm

First post

The Deathstik

This is another rifle but unlike Quick Silver this is a hip shooting plywood punishing paintballer.
This canon consists of:
3/4 x 4'...

Last post

i wasn't trying to diss you man i love your work i just thought it was funny what he wrote.

7 Replies

8631 Views

Last post by rhyco
Fri May 04, 2007 2:50 am
Ghetto Water Cannon

Last post by benstern
Replies: 15
by jssizzle » Sat Apr 28, 2007 9:32 am
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One of those lovely cannons that you throw together in 15 min. because you already have all the parts.

The design:

1/4 NPT to some small hose...

Last post

GORT!!!!!!!!!!!! WE NEED YOUR GHETTO LAUNCHER ASSISTANCE!!!!!!!!!!!!
15 Replies

6331 Views

Last post by benstern
Thu May 03, 2007 10:31 pm
QEV piloting

Last post by spanerman
Replies: 8
by iPaintball » Thu May 03, 2007 2:28 pm

First post

I'm buliding a small 1/4 QEV powered pistol, and I just need to know if it is possible to pilot a 1/4 QEV with a schrader valve. Any help would be...

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probably the flash.... for more pics and the evolution to what it is now visit

8 Replies

2285 Views

Last post by spanerman
Thu May 03, 2007 4:02 pm
M.H.I.S Real Rifle

Last post by wannabie
Replies: 10
by rna_duelers » Sat Apr 28, 2007 11:37 pm

First post

M.H.I.S Real Rifle.

-25mm modded sprinkler valve.
-55cm rifled 3/4 barrel.
-40mm class 12 chamber 30cm long.
-Red dot laser.
-Bi-Pod.
-Awesome to...

Last post

ok thanks my next gun will have a laser sight

how is the barrel on that stand thing? is it welded on or somthing and with the barrel since it is...

10 Replies

6893 Views

Last post by wannabie
Thu May 03, 2007 5:21 am
piston ?'s

Last post by integral
Replies: 9
by roughboy » Mon Apr 30, 2007 12:37 am

First post

Does the piston have to be heavy or light or doesn't matter?

what can i do if my piston is slightly centimeters'' smaller than my tee?

where does...

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Ya... you would need to make it tiny so that you can exhaust the pilot faster it bleeds pressure from the chamber.

9 Replies

2524 Views

Last post by integral
Thu May 03, 2007 2:02 am
Dual valves

Last post by SpudMonster
Replies: 16
by Shadowscion » Tue May 01, 2007 6:18 pm
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When using two valves linked to one exhaust, is it better to have two separate chambers or should they be connected? I am building a fairly large...

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You will want a minimum amount of dead space between the valve and the projectile's ass end. Putting the valves in-line with the barrel would be a...
16 Replies

5134 Views

Last post by SpudMonster
Wed May 02, 2007 9:20 pm
Sprinkler Valve Actuation

Last post by locksmith
Replies: 5
by Atlantis » Wed May 02, 2007 8:15 pm

First post

I recently bought a sprinkler valve and was wondering, is the manual pilot switch make the valve open any slower than the solenoid?

Another thing...

Last post

If it honks you need faster pilot valve ie.better blow gun or mod a blow gun to get a faster flow.

5 Replies

1919 Views

Last post by locksmith
Wed May 02, 2007 9:08 pm
Copperheads new barrel - 4mm bore for biro cartridge darts

Last post by Hotwired
Replies: 20
by Hotwired » Tue May 01, 2007 6:14 am
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Firstly the 4mm barrels are 60cm fibreglass tent poles with an 8mm OD and a 4mm ID and the yellow coupling used to join them is a cut down and dremel...

Last post

Okay, 2mm biro dart Vs 4mm hardboard thing:

It punched a hole clean through from 20m and was stopped by the baked clay thats currently...
20 Replies

9274 Views

Last post by Hotwired
Wed May 02, 2007 7:44 pm
help please

Last post by iknowmy3tables
Replies: 5
by jon_89 » Wed May 02, 2007 12:30 am

First post

i just built a copper burst disk gun. all of it is .5in. does anybody know how to get a air tight seal at the union?

Last post

it could also be because of how you set the burst disk, you can goop up the parts teflon tape can't reach

5 Replies

1611 Views

Last post by iknowmy3tables
Wed May 02, 2007 7:04 pm
Filling a piston from 'the other side'

Last post by noname
Replies: 4
by cyanite » Tue May 01, 2007 11:46 pm

First post

Is it possible to fill a coax, piston spud-launcher from the front (barrel exit end) of the chamber.
Would this actuate the valve, if there was a...

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so no you can't pressurize a standard barrel sealing piston valve from the front of the valve

I seem to be able to. Actually, my 2 valve refuses to...

4 Replies

2372 Views

Last post by noname
Wed May 02, 2007 6:57 pm
Semi Auto Marble Gun

Last post by Redcoat
Replies: 8
by Redcoat » Wed May 02, 2007 4:09 am

First post

Hi all,

I came across this idea while i was designing my bolt action MAS 36 and i dont think it would work really but i just thought that maybe...

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shud be rite is correct. the diagram i have is in the position to let the marble into the barrel and after that it gets pushed forward by the band so...

8 Replies

4217 Views

Last post by Redcoat
Wed May 02, 2007 3:41 pm
Big ghetto pneumatic (40ft barrel :)

Last post by Billy Bob
Replies: 31
by Fnord » Fri Apr 20, 2007 7:44 pm
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I've had this thing together for about 6 months, but had recently taken the valve off for part of my contest gun. I got another valve a few days ago...

Last post

How much time does it need if all pressure is going through the tube ?
So you can see if the gun works rational. But I think you close the valve...
31 Replies

11895 Views

Last post by Billy Bob
Wed May 02, 2007 1:52 am
burst disk cannon!

Last post by spudthug
Replies: 9
by spudthug » Mon Apr 30, 2007 7:33 pm

First post

hey all this is my burst disk cannon. i jsut made it today when i was at my freinds and i saw a 1 inch union... i asked if i could have it he said...

Last post

new pics in first post plus damage!! wow this is powerful.. btw my burst discs was two layers of playing cards and they broke at 115 psi

9 Replies

3577 Views

Last post by spudthug
Tue May 01, 2007 7:26 pm
Little Friend

Last post by scatdawg
Replies: 2
by scatdawg » Wed Apr 25, 2007 7:29 pm

First post

SAY HELLO TO MY LITTLE FRIEND. ( TONY MONTANA FROM SCARFACE )

i had a hard time deciding what to name my cannon. i love the movie scarface but i...

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yeah. i definitely would get a visit from the a.t.f. if i took that any where near an airport. i try to limit its public exposure, but its just too...

2 Replies

2482 Views

Last post by scatdawg
Tue May 01, 2007 4:04 pm
Maximum CO2 pressure- ABS gas reservoir.

Last post by chpiai
Replies: 11
by chpiai » Tue May 01, 2007 3:32 am

First post

Given that liquid CO2 has a vapour pressure of about 830 PSI, about 55 atmospheres; if I have a compressed gas reservoir with a volume not...

Last post

If you are worried about something happening that isn't supposed to happen (like a valve or regulator freezing open) then the usuall solution is to...

11 Replies

4198 Views

Last post by chpiai
Tue May 01, 2007 2:13 pm
Magnesium Spudgun

Last post by mega_swordman
Replies: 4
by Billy Bob » Mon Apr 30, 2007 1:32 pm

First post

Hi i want to show my older pneumatic spudgun.

Earlier it was a manual side loader. It should become but never work because the tolerance and small...

Last post

So realistic, yet so powerful. That is really nifty, I'll see if I can't make a few myself and test them out.

4 Replies

2281 Views

Last post by mega_swordman
Tue May 01, 2007 1:38 pm
Screw or Glue?

Last post by th3p0p0
Replies: 2
by demilus » Mon Apr 30, 2007 5:28 pm

First post

Hey again guys! I just made a hot glue piston for my marble gun.

It is a 1 piston that is 3 long. It goes to a 1/2 barrel.

Should I glue the...

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id use a screw and glue and for lube :lol: i use ky jelly im not kidding its So much better than gun oil iv used both.

2 Replies

2049 Views

Last post by th3p0p0
Mon Apr 30, 2007 8:29 pm
First air cannon

Last post by Juicey
Replies: 9
by Cader » Sun Apr 29, 2007 9:49 pm

First post

I built this as my first air cannon and I think it works great.
I was shooting with the 2 potato barrel about 165+ yards.
A golf ball probably...

Last post

Great job for a first cannon. Just throw on a slab of paint to cover those primer stains and that thing will be extremly nice. I like the fact u have...

9 Replies

3767 Views

Last post by Juicey
Mon Apr 30, 2007 7:21 pm
Aluminum breecher

Last post by locksmith
Replies: 5
by locksmith » Mon Apr 30, 2007 2:50 pm

First post

Well this is my polished aluminum breech loading marble gun.It also sports a muzzle loaded one inch copper barrel.All of the machine work was done by...

Last post

Shoots marbles threw 3/4 melomine(shelving)and shoots that aluminum pellet threw 3/4 plywood both at about15 yards.I want to buy a chrono but wife...

5 Replies

2099 Views

Last post by locksmith
Mon Apr 30, 2007 4:39 pm
Help on Valve Choice

Last post by spanerman
Replies: 5
by Abigor » Mon Apr 30, 2007 3:08 pm

First post

Hi, I'm new to Pneumatic Cannons and I'm wondering if i had a fire extinguisher with a Schrader Valve stuck to the bottom of it what type of valve...

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look on the WWW.UKSGC.CO.UK forums forsome info on QEV's thats what youl want for power

5 Replies

2014 Views

Last post by spanerman
Mon Apr 30, 2007 3:46 pm

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