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

910121 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

446436 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...

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great job everyone
64 Replies

399207 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

621602 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

329515 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

79029 Views

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

Topics

My biggest gun yet.

Last post by 8tonsemi
Replies: 12
by 8tonsemi » Sat Nov 10, 2012 5:13 pm

First post

SPECS
Valve: 1 1/2 Inch dust collector valve
Chamber: 4Feet of 3inch pvc
Barrel: 2 1/2 inch by 4 foot long barrel and sdr21 7foot barrel.
Pilot:...

Last post

nice work! :D
Thanks :lol:

12 Replies

4704 Views

Last post by 8tonsemi
Fri Dec 07, 2012 4:30 pm
What pressure will QEV's fail at?

Last post by Goats spudz
Replies: 4
by whoa044 » Thu Dec 06, 2012 7:31 pm

First post

So we've heard the stories of people using HPA and unregulated CO2 with their QEVs, reaching 800 psi, but has anybody ever had a QEV fail on them?...

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I take it you haven't seen the 100 BAR in a Qev.

4 Replies

2549 Views

Last post by Goats spudz
Fri Dec 07, 2012 2:47 am
3 In. Piston Valve Launcher

Last post by acs2997
Replies: 13
by acs2997 » Mon Dec 03, 2012 3:34 pm

First post

This is my first piston valve gun. It has two 5 ft long air tanks, 3 in. diameter. The piston housing is 3 in. with a 2 in. barrel. Soon to come:...

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Trust me, I wouldn't be using it if my life was at risk.

13 Replies

4932 Views

Last post by acs2997
Thu Dec 06, 2012 6:28 pm
Noob air cannon trigger question

Last post by jackssmirkingrevenge
Replies: 6
by air_dannon » Thu Dec 06, 2012 12:14 pm

First post

Hi Everyone,

I'm looking to put together a copper spud gun and understand the easy to implement pressure release valve method for a trigger device....

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Given how it opens, I don't see how this could be more effective that a ball valve.

6 Replies

2175 Views

Last post by jackssmirkingrevenge
Thu Dec 06, 2012 6:00 pm
LS-50 full auto high pressure 50cal

Last post by Just1ofgod
Replies: 6
by Just1ofgod » Mon Dec 03, 2012 1:48 am

First post

ok then here it is i have dreamed of making a fully automatic type big bore airgun for many years this is my first auto bigbore prototype the stock...

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With a detent you can usually time a single shot by just pressing lightly on the trigger yes i understand that but i also want to be able to run...

6 Replies

3729 Views

Last post by Just1ofgod
Thu Dec 06, 2012 3:02 am
semi-auto first try

Last post by cstru18
Replies: 6
by wyz2285 » Wed Jul 14, 2010 4:13 am

First post

I have been trying to make ou mod a QEV semi-auto for a long time, but I got no where :( .Recently I got a idea to make a semi-auto blowgun to pilot...

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Sorry to bump a old thread but I'm brand new to this website and I'm just wondering how u done that mod to the blow gun for semi-auto :)

6 Replies

4648 Views

Last post by cstru18
Wed Dec 05, 2012 11:36 pm
C41p50 - First Build, Strict Conditions

Last post by GonzoInferno
Replies: 33
by thatguydionysus » Fri Aug 03, 2012 7:33 pm
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Here's the current scheme >=)
General Classification
Pneumatic Launcher
Barrel :
> 18 of 4 SCH 80 PVC
> Rifled Via sliced and diced pvc pipe...

Last post

Hurry up every chance you get. But remember to stay within your design parameters.
33 Replies

11948 Views

Last post by GonzoInferno
Tue Dec 04, 2012 3:01 pm
4in Coax

Last post by ferret_guy
Replies: 4
by ferret_guy » Mon Dec 03, 2012 7:39 pm

First post

Here is my 4in Barrel sealing coax

Chamber size (nominal):4in x 65in
Barrel size (nominal):2in x 96in
Piston: 4in PVC rod
Sealing face: Old mouse...

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:( no it is not the cost of 4in threaded fitting make my sob quietly at night

4 Replies

2635 Views

Last post by ferret_guy
Tue Dec 04, 2012 2:39 pm
My Second gun... Same thing, neater

Last post by jackssmirkingrevenge
Replies: 6
by Teflon » Sat Dec 01, 2012 9:26 am

First post

Hello again Spudfiles.

Well its been a good 3 years since I posted my first gun.

I've been dabbling here and there making pistons and valves...

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However it is a fair bit of work as id have to rebuild the iron sights and everything.

Well, it doesn't have to go above the sight line, have a...

6 Replies

3061 Views

Last post by jackssmirkingrevenge
Tue Dec 04, 2012 4:10 am
O-rings

Last post by Technician1002
Replies: 2
by acs2997 » Mon Dec 03, 2012 7:21 pm

First post

So I'm in the process of making the coolest pneumatic weapon of mass destruction ever seen, but I need to get some o-rings. Home-depot only had tiny...

Last post

Look for an Ace Hardware. If you have one, they have a much better selection.

2 Replies

1380 Views

Last post by Technician1002
Tue Dec 04, 2012 12:43 am
Broken Rainbird Solenoid

Last post by acs2997
Replies: 5
by acs2997 » Mon Dec 03, 2012 5:07 pm

First post

I was just shooting one of my launchers that uses a modified rainbird valve and my trigger valve snapped out of the rainbird. Does anyone know...

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Yeah I have a spare one that I'll screw on next time I use it. Hopefully I'll be able to order a new valve soon too

5 Replies

1633 Views

Last post by acs2997
Mon Dec 03, 2012 8:53 pm
Name of valve within compressed air blow guns?

Last post by Crna Legija
Replies: 3
by U1timateWaff1e » Sun Dec 02, 2012 8:43 pm

First post

What is the name of the specific valve located inside of the blow gun attachments for pneumatic systems?

And the search function was not working so...

Last post

a normally closed poppet/push button valve

3 Replies

2926 Views

Last post by Crna Legija
Mon Dec 03, 2012 6:52 am
air cannon newbie

Last post by acs2997
Replies: 5
by Nertzor » Sat Dec 01, 2012 11:40 pm

First post

ok guys, i realize this gets asked probably a million times a day. But I have tried combustion cannons, and had a blast. (literally, blew out the...

Last post

If you searched for good deals, you could probably find a solenoid online for under $20. those are easy to modify (hundreds of videos on youtube as...

5 Replies

2443 Views

Last post by acs2997
Sun Dec 02, 2012 12:03 pm
Eclipse tube magazine launcher

Last post by GonzoInferno
Replies: 12
by Solar » Mon Oct 19, 2009 1:12 am

First post

Ammo and air come in with unified pneumatic magazine. Rounds are indexed via pneumatic ammo elevator(the magic box).

Bore site allows aiming with...

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Ok. I realize this is a very old thread, BUT, has this tube magazine gone anywhere? Solar, this one really intrigues me. I have seen the vertical...

12 Replies

10145 Views

Last post by GonzoInferno
Fri Nov 30, 2012 10:09 pm
solenoid to pilot a hammer valve

Last post by spaspeckerthedull
Replies: 165
by wyz2285 » Sun Oct 16, 2011 3:27 pm
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I have found a topic about making a valve simular to a Baikal black bird airgun, I thought it was a good valve idea as I have a T from a push to...

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any chance of an update? I am trying to do exactly the same as you and it would be great if you'd got it up and running
165 Replies

42868 Views

Last post by spaspeckerthedull
Fri Nov 30, 2012 12:57 pm
Machined Aluminium Coax - Planning to build

Last post by GonzoInferno
Replies: 40
by Hrawk » Mon Oct 22, 2012 3:11 am
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Hello all,

I picked up a heap of 32 & 12.7mm drawn aluminium tube the other day in readiness for my next build.

Thought I'd share my plans with you...

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Nylon will wear well in the launcher. But it will still be quite a thump towards those small M4 screws holding the rear cap on. And yes, the softer...
40 Replies

15965 Views

Last post by GonzoInferno
Thu Nov 29, 2012 8:55 pm
bolt action air gun

Last post by woodz1234
Replies: 19
by woodz1234 » Thu Oct 25, 2012 9:53 am
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hi guys i just wanted some thoughts on whether you guys like this design or if you see any down falls.

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rite finally got the gun assembled and fired ill add some pictures and damage shots all i need to do now is buy a blow gun and make a wooden stock...
19 Replies

7517 Views

Last post by woodz1234
Thu Nov 29, 2012 11:17 am
Mauler valve discussion thread.

Last post by GonzoInferno
Replies: 36
by 8tonsemi » Sat Jun 09, 2012 10:26 am
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What is the piston on the mauler valve made of. Is it sheet pvc? The reason I want to know is I might try to make a replica some time for fun.

I...

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A barrel sealer will open faster in a smaller package, I don't see much merit in a chamber sealing Mauler. It would open slower or be bulkier and...
36 Replies

15387 Views

Last post by GonzoInferno
Wed Nov 28, 2012 6:17 pm
Pilot Help

Last post by Just1ofgod
Replies: 6
by mikehunt042084 » Mon Nov 26, 2012 8:49 pm

First post

I am working on a high pressure pneumatic and was curious is pressure washer handles would work for a pilot, they are rated in the 1000s of psi and...

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just a thought there are other valves out there how ever most of them are not cheap i know there are some custom electric qev type valves but they...

6 Replies

2404 Views

Last post by Just1ofgod
Wed Nov 28, 2012 12:30 am
Next Project/Burst Fire Ideas

Last post by PaperNinja
Replies: 3
by PaperNinja » Mon Nov 26, 2012 9:17 pm

First post

I've recently (finally) finished my semi-auto QEV gun, (showcase in a few days), I already had a cloud. What comes next? 3 round burst of course! Yes...

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I had another idea that's basically the same way real burst works. You attach the trigger to gears, so the small motion can turn a cam 3 times which...

3 Replies

1557 Views

Last post by PaperNinja
Tue Nov 27, 2012 10:25 am
Pneumatic ideas

Last post by Alanstone
Replies: 3
by Alanstone » Mon Nov 26, 2012 6:25 am

First post

Having got to work out how much of this cad program works and having lots of time to work on it I put some ideas together.

Now I don't for a second...

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@JRS: I got a new program today called freecad. Its 3D cad and so far its really easy. It helping a lot with visualizing the parts :) . What do you...

3 Replies

1744 Views

Last post by Alanstone
Mon Nov 26, 2012 10:02 am
qev question

Last post by jackssmirkingrevenge
Replies: 7
by madmarcs » Sat Nov 24, 2012 6:23 pm

First post

Hello spudfiles i just have a quick question about a valve that I bought. My understanding of qevs is that they have a small spring inside them to...

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If you're pressurising the system from the pilot side, there is no need for a spring. If on the other hand you're filling from the chamber side, you...

7 Replies

2471 Views

Last post by jackssmirkingrevenge
Mon Nov 26, 2012 3:19 am
Piston shotgun build help

Last post by Marffy
Replies: 14
by Marffy » Mon Nov 19, 2012 12:05 am

First post

Its been a while and i'm thinking of making a new gun. I wanted to make a shotgun type co-axial? piston gun. With a 3/4 steel tube and a schrader...

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It's just a support, look for something that fits the OD of the barrel, and the ID of the chamber. A cotton reel is one idea, but there's heaps you...

14 Replies

6140 Views

Last post by Marffy
Sun Nov 25, 2012 4:17 pm
A new sentry gun project

Last post by POLAND_SPUD
Replies: 21
by evilvet » Sun Oct 21, 2012 12:49 am
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Evening all.

Well, I finally did it; quit my contract job and giving myself six months long service leave. I have the entire summer off, probably...

Last post

yup electronics is sure awesome - some sensors and coding and you've got a machine that does wonders...

ohh BTW I really like this app>
awesome...
21 Replies

7132 Views

Last post by POLAND_SPUD
Thu Nov 22, 2012 1:28 pm
Russian pneumatic shuttlecock gun

Last post by jackssmirkingrevenge
Replies: 2
by Solar » Wed Nov 21, 2012 11:09 am

2 Replies

1703 Views

Last post by jackssmirkingrevenge
Thu Nov 22, 2012 1:47 am

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