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

897503 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

436388 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

370820 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

614239 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

326965 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

77841 Views

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

Topics

MG-15

Last post by Carlman
Replies: 29
by Carlman » Sat Nov 24, 2007 9:55 am
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Hi all,

Im new to this forum although i have been scouring it for the past week and a half looking for ideas. This is my first cannon i have ever...

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this gun was dismantled and used for other guns, the valve s**t itself, and it looks crap compared to my others.

Let old topics stay old my friend....
29 Replies

11029 Views

Last post by Carlman
Sun Apr 06, 2008 11:07 pm
Check out this gauge!

Last post by FordGtMan
Replies: 20
by scottcrete » Wed Apr 02, 2008 3:18 pm
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anyone ever seen this? thought maybe you pneuumatic guys would like this.. i found it at tshirtgun.com... and its 25.00

Last post

dastt, looks like you have been beaten too, look up :D
20 Replies

6400 Views

Last post by FordGtMan
Sun Apr 06, 2008 10:30 pm
Full Auto Marble Gun

Last post by THUNDERLORD
Replies: 61
by mark.f » Fri Oct 13, 2006 8:46 am
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full.jpg

This is my automatic marble gun.

I've had it built for a while now, I was just waiting on a camera.

The operating principle is simple:...

Last post

That's excellent, all metal, full auto, good components and fires marbles!!! I really wanted to reply because this came up on Random Cannon and I...
61 Replies

39201 Views

Last post by THUNDERLORD
Sun Apr 06, 2008 9:28 pm
Not a CO2 Calculator (Updated)

Last post by JDP12
Replies: 9
by Hubb » Thu Oct 25, 2007 3:59 am

First post

Following up from CO2 FAQs , I thought some of you may be interested in this.

I made this calculator and, to my knowledge, is as accurate as...

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I like it nice job

9 Replies

2221 Views

Last post by JDP12
Sun Apr 06, 2008 7:26 pm
chamber to barrel ratio question

Last post by SpudFarm
Replies: 24
by beans » Sun Apr 06, 2008 12:38 pm
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Hey guys, new here, new to the whole spud cannon thing. I've always wanted to make my own spud cannon since I saw one in highschool (shit, that was...

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I'm looking to get a QEV, but I don't know from where....mcmaster has them, but I can't find them on their site...
Yeah, I saw your other thread...
24 Replies

5052 Views

Last post by SpudFarm
Sun Apr 06, 2008 6:39 pm
(Update) My Second Spud/Airgun (M4 Carbine style)

Last post by Sergeant Dotson
Replies: 29
by Sergeant Dotson » Mon Jan 21, 2008 6:54 pm
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This is the second and most proud airgun I have made. The air chamber is made of galvanized steel and the interchangable barrels are PVC. I used a...

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The barrel is 1/4 inch.
29 Replies

12730 Views

Last post by Sergeant Dotson
Sun Apr 06, 2008 2:41 pm
sry about this-piston and quev valve.

Last post by judgment_arms
Replies: 17
by dilweed » Thu Apr 03, 2008 10:36 am
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sorry i looked the forums but cant find what i exactly want so here it is. i am making a ww1 style lee Enfield like musket. i use a 1/4 ball valve...

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can u email me on how to rifle ur musket as well please?

My email is...

-no spam and viruses, we already have them!!!!!

Here, this is a link to...
17 Replies

3924 Views

Last post by judgment_arms
Sun Apr 06, 2008 2:05 pm
Barrel in Chamber, Gun #4

Last post by JET47
Replies: 32
by JET47 » Tue Mar 25, 2008 8:17 pm
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Ok, i got all the parts together to build the full scale gun that i was working on before, sorta gave up on the little one lol, might finish it...

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it should be straight, i used the uncut end of the pipe, and i laid a sheet of sandpaper over the piston and rotated a bit to sand it.

I have a...
32 Replies

6229 Views

Last post by JET47
Sun Apr 06, 2008 1:58 pm
Compressor Manual........where are you?

Last post by TurboSuper
Replies: 4
by SpudUke5 » Sat Apr 05, 2008 9:02 pm

First post

Well as you can see from my title, i lost my air compressor manual, and the problem is that it is my first time ever using it.

My father bought it...

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I'm sure they have a PDF version of the manual available for download somewhere...

Ah, nevermind...I just checked their website and they don't even...

4 Replies

1363 Views

Last post by TurboSuper
Sun Apr 06, 2008 9:03 am
Stainless steel/ Aluminium inline valve ?

Last post by seudo411
Replies: 2
by seudo411 » Sat Apr 05, 2008 2:59 am

First post

I need some input, I would like to build a inline style rifle, with a all stainless steel barrel, and chamber, looking to run pressures of about...

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Thanks man, what i am actually going for is a sniper type setup, would like to use a box type clip, I'll work on a image and up load it a.s.ap might...

2 Replies

1364 Views

Last post by seudo411
Sun Apr 06, 2008 7:00 am
poor man's AT-4/CS

Last post by SpudFarm
Replies: 15
by zerodivide » Fri Dec 15, 2006 12:00 am
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Okay it wasn't really cheap ... a few hundred dollars in tools, parts, and effort went into building this approximation of the AT4. I think it looks...

Last post

dead topic!
messenge to short
15 Replies

6581 Views

Last post by SpudFarm
Sat Apr 05, 2008 11:51 am
The Behemoth revisited

Last post by biggsauce
Replies: 20
by biggsauce » Fri Apr 04, 2008 1:23 pm
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Hey yall this is the last cannon I had built before the SGTC forum shutdown. Its the biggest cannon I've built, but theres always room for...

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Alright guys, Ive been looking through all my pictures and I didnt transfer a all of my pictures. Unfortunately, among the ones on my old computer...
20 Replies

8667 Views

Last post by biggsauce
Fri Apr 04, 2008 11:14 pm
C.A.M.O "RIFLE"

Last post by Pyro Ninja
Replies: 16
by Pyro Ninja » Fri Apr 04, 2008 3:50 am
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Camo.Anti.material. O rifle
Its not a rifle perse, but I recon it looks the part
Specs
Chamber- 25mm Pn18 pvc pipe (pressure rated)
Valve- madded...

Last post

Ok, its nothing to do with the sound or camera. :oops:
16 Replies

5671 Views

Last post by Pyro Ninja
Fri Apr 04, 2008 9:43 pm
Compressors go bad?

Last post by starman
Replies: 16
by Counterstriker » Wed Apr 02, 2008 6:57 pm
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Well my cousin gave me a compressor that had to be 10-15 years old I think.. Maybe its just dirty.. Its sears brand and Is I think a 10+ gallon. I...

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Turns out the compressor is way out of date, It rusted inside, the wires crack when you bend them, It won't even go back together.. So it hopeless.....
16 Replies

4512 Views

Last post by starman
Fri Apr 04, 2008 9:28 pm
Simple Bolt Action Paintball Gun

Last post by OuchProgramme
Replies: 5
by biggsauce » Fri Apr 04, 2008 1:37 pm

First post

Hey yall heres one more. The tank is a 4 cap and a 4 to 2 bell reducer. Unsafe, I know. Standard blowgun piloted 1 sprinkler valve to a 3/4 cpvc...

Last post

The chamber looks like a small bowling ball haha

5 Replies

3528 Views

Last post by OuchProgramme
Fri Apr 04, 2008 6:59 pm
marble shooter (now with videos and damage pics!)

Last post by P.v.c.F.t.w.
Replies: 40
by jook13 » Sun Feb 24, 2008 2:32 am
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So this is my newest effort. I don't have a name for it as its not quite done yet (still gotta paint it and replace that ugly tape with something...

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*sigh*, no idea. I'm mainly trying to avoid taping it to the barrel. Or, I also could glue it onto one of my old Daisy scopes for airsoft guns, like...
40 Replies

13125 Views

Last post by P.v.c.F.t.w.
Fri Apr 04, 2008 7:41 am
Crowley's First Co-ax - Update

Last post by jackssmirkingrevenge
Replies: 36
by MrCrowley » Fri Mar 07, 2008 8:17 pm
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New Pics :)
The power from such a crappy design impressed me, I have plans for a 3/4 chamber, 24 6mm barrel and possibly mounted to a rifle stock....

Last post

Can you get 0.22 airgun pellets? If so, this might be a better idea for ammunition ;)

As to what what brand, you seem to be fairly limited in NZ....
36 Replies

7703 Views

Last post by jackssmirkingrevenge
Fri Apr 04, 2008 5:39 am
Piston Problems

Last post by jackssmirkingrevenge
Replies: 9
by FordGtMan » Wed Apr 02, 2008 5:39 pm

First post

Well, i got eager with myself after getting some casting epoxy from the craft store, and decided to make my 6 mm mini coax. everything went as...

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the rubber should ideally be glued uniformly to the piston face, or if it's the by a nail or bolt, then the diameter of the bolt head or washer...

9 Replies

1779 Views

Last post by jackssmirkingrevenge
Fri Apr 04, 2008 12:38 am
Barrel Sealing Valve (log)

Last post by Counterstriker
Replies: 7
by Counterstriker » Wed Apr 02, 2008 8:32 pm

First post

Ok, So I am constructing a Barrel Sealing Valve and thought I will make a log and ask all my questions in this one topic. So far I am good with...

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What is your question and why didn't you search???? Puhleeeze tell me you searched and there were no answers to your non existent question.

Dude...

7 Replies

2228 Views

Last post by Counterstriker
Thu Apr 03, 2008 6:37 pm
Anti-Tank Coax

Last post by jon_89
Replies: 10
by elitesniper » Sun Feb 03, 2008 12:03 am

First post

This is my first coax, and third piston valve. all together its 1.1meter long the barrel is sch 40 3/4'' chamber is 2'', pilot is a 1'' sprinkler,...

Last post

Do you know what the range is?

10 Replies

3689 Views

Last post by jon_89
Thu Apr 03, 2008 1:31 am
Chamber size?

Last post by sparkey
Replies: 2
by sparkey » Wed Apr 02, 2008 1:34 am

First post

I have tried to figure this out with the ggdt. I want to shoot nerf rockets from a 2x26 ish barrel with a 1 modded sprinkler valve at around 100psi....

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Thanks. I was pretty sure about it but wanted a second opinion.

2 Replies

1388 Views

Last post by sparkey
Thu Apr 03, 2008 12:23 am
Quick Question About Epoxy

Last post by Gippeto
Replies: 8
by e1337 » Wed Apr 02, 2008 11:22 am

First post

Can a marine grade epoxy hold up to 1000psi? Also can it hold up to liquid CO2? And is it possible to turn on a lathe?

-e1337

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Do you really want to do this? :shock:

Do you have the tensile strength of the epoxy? You will need this to calculate the thickness of pressure...

8 Replies

2580 Views

Last post by Gippeto
Wed Apr 02, 2008 4:30 pm
6mm coaxial

Last post by hyldgaard
Replies: 29
by hyldgaard » Mon Mar 31, 2008 11:13 am
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Hello.
Im about to start my new project which is a 6mm coaxial. I know the power wont be really impressive, its just to introduce myself to coaxials,...

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in my country qevs are not available to the ordinary person, i have ordered these on ebay from germay, which has very limited supply too. ould have...
29 Replies

5214 Views

Last post by hyldgaard
Wed Apr 02, 2008 3:52 pm
What happened to GGDT?

Last post by mark.f
Replies: 8
by Darkerweb12 » Tue Apr 01, 2008 3:42 pm

First post

I'm not sure if it's my browser, or if the GGDT files are no longer existant, I can download the GGDT executable but not the neccesary files:...

Last post

iexpress FTW!

I used to use that to package up and install my batch file systems. It's pretty versatile, and you could use said batch files to...

8 Replies

3004 Views

Last post by mark.f
Wed Apr 02, 2008 6:22 am
need help with another coaxial

Last post by Cosmic Muffin
Replies: 12
by Cosmic Muffin » Mon Mar 24, 2008 9:01 pm

First post

hey guys im having trouble with yet ANOTHER coaxial. but this time i was sure to make the chamber volume bigger.the chamber is about 30cm and the ID...

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nvm guys its working now but i pulled it apart for something else, still u can look at the pics to see what it looks like

12 Replies

3238 Views

Last post by Cosmic Muffin
Wed Apr 02, 2008 6:05 am

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