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

1201228 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

604747 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

857642 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

1020551 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

392524 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

100017 Views

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

Topics

I need help on making a auto mabe semi auto airgun

Last post by Tyro
Replies: 4
by Phoenix75088 » Mon Oct 16, 2006 5:22 pm

First post

ok it needs to be simple cheap no air tanks or co2 powerful mabe small u think you know what i can do to make one

Last post

i think the first step would be Puncuation, then you can use grammar.
But make something simple first of all. Try something rly small and cheap, if...

4 Replies

16002 Views

Last post by Tyro
Mon Oct 16, 2006 9:34 pm
Attaching 2" chamber to 1/2" nipple

Last post by Extrusion

by Extrusion » Mon Oct 16, 2006 7:05 pm

i went to and found a bushing that i think is the right part here is the product number 4880K172 could some one tell me if this is what i need to...

0 Replies

2160 Views

Last post by Extrusion
Mon Oct 16, 2006 7:05 pm
easy to make piston

Last post by pyromanic13
Replies: 6
by haulinick » Mon Oct 16, 2006 12:53 am

First post

I found some stuff at homedepot today called epoxy putty. There is many different kinds around the store included plumbing and all purpose. I just...

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john, what was you avatar before?

6 Replies

3954 Views

Last post by pyromanic13
Mon Oct 16, 2006 6:59 pm
I've decided what to do with the 8"

Last post by pyromanic13
Replies: 31
by noname » Sat Aug 19, 2006 10:52 am
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This chunk of pipe shall be a coaxial! I just can't decide whether to make the barrel 4 or 2 , but it will be 20 feet long because that's how long...

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I doubt a Nerf ball would be rigid enough to hold any signifigant(sp) ammount of pressure.

isn't the pressure equal on both sides just squishing...
31 Replies

10341 Views

Last post by pyromanic13
Mon Oct 16, 2006 6:54 pm
Using Co2??

Last post by KVINCEO
Replies: 5
by shadowghost21 » Mon Oct 16, 2006 1:01 pm

First post

I am looking into creating a mini vortex football launcher for a airsoft buddy of mine. I want to launch a Mini vortext football(you know the tiny...

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oic! gotcha now, i had know idea why you were tellin me u were gonna dress like boba fett.... i guess you would have to get some regulator, because i...

5 Replies

2796 Views

Last post by KVINCEO
Mon Oct 16, 2006 5:52 pm
hydrostatic versus pneumatic burst pressures

Last post by drac
Replies: 5
by rgormley » Sun Oct 15, 2006 9:19 pm

First post

we in Australia generally have a few ranges of pressure pipe
PN12,18,22 12bar, 18bar, 22bar 174PSI, 261PSI, 319PSI

i have a spudgun made from PN18...

Last post

I wish I could understand that graph. never got statistics that well... thank god they weren't on the state exam.. (at least bell curves).

5 Replies

5058 Views

Last post by drac
Mon Oct 16, 2006 3:59 pm
which is better?

Last post by jrrdw
Replies: 4
by tntlly » Sun Oct 15, 2006 11:01 pm

First post

for my next cannon i wanna make a piston because i haven't done that yet. is there much of a difference between co-axial and over-under?

Last post

From what i read in here i would have to agree with Infernal Maveric, the co-axle delivers a straight push of air, with the over and under the air...

4 Replies

1761 Views

Last post by jrrdw
Mon Oct 16, 2006 5:25 am
My first

Last post by SquishY
Replies: 15
by SquishY » Fri Oct 13, 2006 5:28 am
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Well, here is my first pneumatic, has a 5:1 C:B. Chamber is 4 SCH40 and barrel is 2 SCH40.

I know I need to plug the solenoid holes, I just...

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Well, I finnaly got my computer to not fuck up when I use the card reader Here is my baby pneu and a shot of the primary ammo.

The human lungs...
15 Replies

6597 Views

Last post by SquishY
Mon Oct 16, 2006 1:23 am
dwv

Last post by CS
Replies: 5
by KVINCEO » Sun Oct 15, 2006 5:28 pm

First post

i understand it is not pressure rated, but how much pressure can it handle? in particular, a threaded 2 threaded end, because the majority of it is...

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Here it is, a previous attempt to clear up the muck. As you can see I spent some time writing, and believe it to be of some use, of course the reason...

5 Replies

2273 Views

Last post by CS
Sun Oct 15, 2006 10:06 pm
copper coaxial

Last post by haulinick
Replies: 7
by haulinick » Sun Oct 15, 2006 12:45 am

First post

I plan on making a copper coaxial piston cannon. It will have a 1/2 barrell in a 1 chamber. I already did the math and it should have a c:b ratio of...

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made it today. Its a monster. heres the link with pics and info

7 Replies

2475 Views

Last post by haulinick
Sun Oct 15, 2006 8:10 pm
Marble Cannon

Last post by KVINCEO
Replies: 49
by OwThatsMyEye » Wed Jun 28, 2006 7:24 pm
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Here are some pics of my most recent cannon. It is a piston cannon that fires 14mm marbles. It is acually very powerful for its size and can shred...

Last post

Sorry zeigs (can't even capitolize your own name) but you need to:
1. Learn to spell
2. Learn proper grammer.
3. Do research
4. Get your head out of...
49 Replies

18428 Views

Last post by KVINCEO
Sun Oct 15, 2006 1:51 pm
Australian air gun pvc pipe specs/rating/psi

Last post by Tyro
Replies: 64
by rgormley » Fri Oct 06, 2006 9:30 am
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hi all (forgive me as this is my first post) and i may have to do a lot of searching but.....

most people talk about sched 40 pvc pipe in USA/UK

in...

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doesn't sound right, because ppl use them for pressures higher then that i'm sure!
64 Replies

28139 Views

Last post by Tyro
Sun Oct 15, 2006 3:57 am
Exact model number of Rain Bird valve

Last post by Vincente
Replies: 1
by dongfang » Tue Oct 10, 2006 5:44 am

First post

Hi,

I have found out that the Rain Brids I want to use for my first Jet Gun are available here in Switzerland (an a far away town, so mail order it...

Last post

I have a CP-100.

1 Replies

1760 Views

Last post by Vincente
Sat Oct 14, 2006 6:12 pm
what kind of pressure is on the "low" side of a sp

Last post by Atlantis
Replies: 4
by rgormley » Sat Oct 14, 2006 7:08 am

First post

if i crank my gun to say 100psi what kind of pressure will be on the holding low side of the sprinkler diaphram.

also does stretching /cuting ring...

Last post

Making the spring stronger might keep it from opening or at least it would slow it down.

Loosening the spring might shrink the spring enough to...

4 Replies

2132 Views

Last post by Atlantis
Sat Oct 14, 2006 5:07 pm
Union Chamber Piece

Last post by Atlantis
Replies: 9
by Atlantis » Fri Oct 13, 2006 10:43 pm

First post

Does a union hold the same pressure as PVC pipe, I just need to know if it's safe to use as part of the chamber. I'm mostly concerned that the seal...

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Finally a real answer. I plan on making a gun with a 1.5 coaxial chamber, I had the idea of using 2 unions as part of it so I could remove a segment...

9 Replies

2176 Views

Last post by Atlantis
Sat Oct 14, 2006 5:02 pm
semi auto paintball rifle

Last post by THEMOST
Replies: 10
by THEMOST » Thu Oct 12, 2006 8:37 pm

First post

This is my fully/ semi-automatic paintball rifle. I used 3 pvc for the chamber and 3/4 ABS for the barrel. Obviously it's an electric solenoid...

Last post

cheap mexican slingshots...lol

I used regular schedual 40 pvc for most of the gun. Only the barrel is made of ABS piping and I know that that stuff...

10 Replies

5693 Views

Last post by THEMOST
Sat Oct 14, 2006 12:46 pm
My First Pneumatic

Last post by squeaks
Replies: 14
by squeaks » Tue Oct 10, 2006 10:19 pm

First post

Here's my first gun in progress. I researched for a while and finally decided on two things. First, I decided to make a chamber sealing piston, and...

Last post

It's the same principle but instead of the piston sealing off the barrel, it seals off the chamber. Then you have a small equilization hole in the...

14 Replies

4637 Views

Last post by squeaks
Sat Oct 14, 2006 9:38 am
[UPDATE] Hunting rifle (SNEAK PREVIEW!)

Last post by killagorrila99
Replies: 31
by killagorrila99 » Mon Oct 02, 2006 1:48 am
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This is all I can show you of my new hunting rifle with a piston valve for the moment. I will have a paint job soon.

UPDATE! That means I show you...

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HEhe not really, Im not actually going hunting, But i have modded the gun and it looks much more like a hunting gun.
31 Replies

14411 Views

Last post by killagorrila99
Fri Oct 13, 2006 10:40 pm
can a sprinkler valve release on it`s own ?

Last post by Recruit
Replies: 7
by rgormley » Mon Oct 09, 2006 6:17 am

First post

just wondering if the 24vac sprinkler valves could release by themselves

ie: due to some sort of internal air leak, mechanical failure?
Or pressures...

Last post

great idea :D just make sure you open the ball valve before you pull the trigger or switch otherwise you will not live it down

7 Replies

3256 Views

Last post by Recruit
Fri Oct 13, 2006 2:34 pm
sprinkler valves?

Last post by zeigs spud
Replies: 11
by sniper in the night » Wed Oct 11, 2006 2:53 pm

First post

im new to this site but not new to spud guns. Im in drawing right now for another one, but i dont really understand the concept of sprinkler valves....

Last post

bnoth ways to mod a sprinkler valve.

11 Replies

4880 Views

Last post by zeigs spud
Fri Oct 13, 2006 5:06 am
Solenoid valve electronic Vs. pneumatic comparison?

Last post by Deactivated 1
Replies: 15
by Deactivated 1 » Thu Oct 05, 2006 11:19 am
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I know, pneumatic allows for a much faster air discharge. I was hoping someone could provide some numbers so I can have an idea of exactly what sort...

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Yeah I've got one of those. I tried pumping up my gun with it running off a NiCD drill battery. It made a lot of noise but wouldn't pump up. I assume...
15 Replies

6586 Views

Last post by Deactivated 1
Fri Oct 13, 2006 4:09 am
C:B for a pneumatic

Last post by SquishY
Replies: 10
by Rambo » Tue Feb 14, 2006 5:01 pm

First post

I'm building a self recharjing pneumatic and I want to know what is there big diferense if the barrel is 50ml and tha ratio C:B 2:1 ; C:B 10:1; C:B...

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Will a 5:1 be good, to get this ratio my chamber(30 ) would be longer than my barrel(24 ) which IMO would look pretty silly. How ever the way it...

10 Replies

4514 Views

Last post by SquishY
Fri Oct 13, 2006 1:55 am
Help with attaching 2" PVC chamber to 1/2" steel n

Last post by SquishY
Replies: 6
by Extrusion » Thu Oct 12, 2006 9:19 pm

First post

im currently attempting to make an over under pneumatic but i cant find a fitting to put a 2 pvc chamber to a 1/2 steel nipple can anyone help with...

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It's the proper pipe, I don't know the markings off-hand but I do know that my 4 chamber pipe is sch40 165psi, the barrel and of couse all fittings...

6 Replies

2312 Views

Last post by SquishY
Fri Oct 13, 2006 1:05 am
co2 breachloader

Last post by PVC Arsenal 17
Replies: 2
by KVINCEO » Tue Oct 10, 2006 7:45 pm

First post

This is my newest creation, i like the simplicity of useing co2. the barrel is 2 dia and 5' in length. i used a 3 fitting for the breach, and the...

Last post

Why? Are you some antipatriotic freak?

Nice gun. Very original.

2 Replies

1922 Views

Last post by PVC Arsenal 17
Thu Oct 12, 2006 4:17 pm
regulator for a home made paintball gun

Last post by THEMOST
Replies: 27
by THEMOST » Sun Oct 08, 2006 9:47 pm
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Today I constructed a paintball rifle that shoots like hell. From 30 feet away I put a hole through part of my dad's metal door with a paintball...a...

Last post

doh i skipped the second page...im confused
27 Replies

8367 Views

Last post by THEMOST
Thu Oct 12, 2006 9:29 am

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