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...

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thank you for creating this website is there anything i can do to help
15 Replies

1666608 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

754204 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

981948 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

1165063 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

466164 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

131442 Views

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

Topics

My PIAT build

Last post by jackssmirkingrevenge
Replies: 3
by Pte.Nelson » Wed Sep 05, 2012 1:43 am

First post

Hello all... I am new to this site though I have dabbled a bit in spud guns in my youth. My obsession is WW2 reenacting, British Army, and since the...

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Yeah, one has to pity the poor tommies that had to not only face panzers but also lug this thing around...

With regards to piloting your QEV, have...

3 Replies

6219 Views

Last post by jackssmirkingrevenge
Wed Sep 05, 2012 2:45 am
Need help with fridge compressor wiring

Last post by CooperJS
Replies: 8
by CooperJS » Sun Sep 02, 2012 7:01 am

First post

Hey guys
Got home today and at the end on my driveway i saw a fridge sitting there for hard rubbish or who ever wants it. So i took it home and took...

Last post

i have just used the paper clip to see if it would work!! :D

Cooper

8 Replies

5923 Views

Last post by CooperJS
Wed Sep 05, 2012 12:51 am
"shoebox compressor "

Last post by PotatoEnemy17
Replies: 23
by jonesy42 » Fri Aug 31, 2012 9:36 pm
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Hey guys, just curious if anyone out their has a shoebox compressor from
www.shoeboxcompressor.com. They are capable of filling your paintball...

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OK, Thanks! :D
23 Replies

14201 Views

Last post by PotatoEnemy17
Sun Sep 02, 2012 5:14 pm
Dual 3/4" QEV Copper Launcher!!

Last post by far_cry
Replies: 68
by Animal81182 » Tue Nov 14, 2006 5:49 pm
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Behold my new launcher made entirely from Copper and the odd bit of brass and steel?

I built this launcher the other week it cost around £40 but i...

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You have the same compressor as me :o

kicked 4 years old topic just to say that !!!
68 Replies

39029 Views

Last post by far_cry
Sat Sep 01, 2012 11:45 am
seriously need help.

Last post by PotatoEnemy17
Replies: 14
by beastmode986 » Sun Aug 26, 2012 2:28 pm

First post

Ok so I received my qev and my shock pump. I was very excited to build my air rifle so I went out and bought all the parts, Pink teflon tape(stronger...

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@beastmode986 You should know, if you ask JSR a question your going to need epoxy - lots of epoxy. :D Not that I'm against epoxy... :wink:

14 Replies

11283 Views

Last post by PotatoEnemy17
Sat Sep 01, 2012 10:07 am
Some questions about a design.

Last post by warhead052
Replies: 5
by warhead052 » Fri Aug 31, 2012 12:50 pm

First post

Ok, I've been put in charge of making a paintball heavy machine gun for my airsoft team, and I need some help with this design. Basically, I need the...

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wyz, just as well I have a few one way valves to spare. I will give that a shot.

Poland, I agree, one way to find out!

Over all though, this...

5 Replies

2618 Views

Last post by warhead052
Fri Aug 31, 2012 2:08 pm
AT4 style pneumatic

Last post by iknowmy3tables
Replies: 5
by iknowmy3tables » Fri Aug 24, 2012 9:56 am

First post

I wanted to make a compact toolies valve spudgun for a while, but now that I've landed a summer job at a lab with a machine shop I decided to build...

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The ball valve is a very good pilot for my setup, the string actually helps you consistently open it quickly, however you will have to modify the...

5 Replies

4750 Views

Last post by iknowmy3tables
Thu Aug 30, 2012 12:56 pm
GB Semi

Last post by al-xg
Replies: 118
by clide » Tue May 01, 2007 11:36 pm
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GB Semi featuring the HEAR valve

This gun is a semi-automatic golf ball gun. It can work on full auto, but it was designed for semi-auto...

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so the point is -> fullauto guns require a lot of flow and that has to be taken into consideration when designing a gun

Yep, one of the biggest...
118 Replies

181336 Views

Last post by al-xg
Thu Aug 30, 2012 10:36 am
Updated VIDEO 12/16/09 Jeepkahn's Collection...

Last post by PotatoEnemy17
Replies: 21
by jeepkahn » Wed Aug 19, 2009 9:29 am
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This post is so that all my launchers can be found in one location (and linked in my signature)... Other prolific builders may want to consider...

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The GB anti aircraft is EPIC! :D actually I want to see it without the muzzle break! And of coarse damage pictures! Good job!
21 Replies

15886 Views

Last post by PotatoEnemy17
Thu Aug 30, 2012 9:44 am
Internal Regulator for hammer valve pcp

Last post by jmez1996
Replies: 18
by jmez1996 » Mon Aug 27, 2012 2:27 am
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Hey everyone i'm getting a lathe soon and i've been looking at designing a bolt action hammer-valve pcp to machine on it (i've had some experience...

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...make a swaging die sized for whatever barrel you can source. Made one for a .32 pcp project as it was difficult at the time to source .310 ammo...
18 Replies

16130 Views

Last post by jmez1996
Wed Aug 29, 2012 6:39 pm
2" T Piston Valve

Last post by Mimikool
Replies: 90
by airpress » Sun Jul 15, 2012 12:34 pm
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Hi all.

I got some time to do something else than working on my hybrid.
I decided to make a steel 2 piston valve.

Something to know:
- everything...

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Very clean work, i hope you'lle make a good shock absorber behind the piston, so you 'll shoot at more acceptable pressions :p

Wait for vids !!...
90 Replies

33053 Views

Last post by Mimikool
Wed Aug 29, 2012 2:55 pm
Spring loaded BV

Last post by Mr.Tallahassee
Replies: 10
by doomburger » Sun Aug 26, 2012 7:41 am

First post

Hey guys, so I've decided to spring load the ball valve on my metal pneumatic (WIP). I'm going to try to explain how it works, hope you guys...

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Not all ball valves are created equal, some are easier to turn than others. BTW you should consider a pneumatic piston actuated ball valve. For all...

10 Replies

8351 Views

Last post by Mr.Tallahassee
Tue Aug 28, 2012 11:59 pm
What've I done wrong with this sprinkler mod?

Last post by MrCrowley
Replies: 27
by CharmingEdgar » Sat Aug 18, 2012 9:20 am
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I bought a 1 orbit sprinkler valve and modded it as per the guide that's on the GGDT website. However when I have my valve fully set up ready to be...

Last post

Did it work?
27 Replies

8155 Views

Last post by MrCrowley
Tue Aug 28, 2012 8:21 pm
What do you think on updated design?

Last post by mattyzip77
Replies: 13
by joshywin » Sun Aug 26, 2012 1:59 pm

First post

I've updated the design only a little, but what do you think.
Constructive criticism and ideas welcome :)
Oh and I'm new to pneumatics, go easy on...

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the piece that is 14 cm, shrink it down, along with the piece located directly under the qev, for aesthetic purposes. Aesthetics are not a factor in...

13 Replies

4371 Views

Last post by mattyzip77
Tue Aug 28, 2012 11:13 am
Semi Auto breech CAD

Last post by PotatoEnemy17
Replies: 13
by CooperJS » Fri Aug 24, 2012 9:32 am

First post

Hey guys, Im working on a semi auto air rifle but having trouble drawing a blow forward breech design, but i have noticed that a phew people on here...

Last post

You guy's don't get it, A potato cannon rarely has use for square wheels. :D
Either way I thought the wheels on the bus go round and round... not...

13 Replies

4307 Views

Last post by PotatoEnemy17
Sat Aug 25, 2012 4:54 pm
semi automatic- not that hard really. guide

Last post by anarchy08
Replies: 9
by anarchy08 » Fri Aug 24, 2012 8:34 am

First post

hey,
so skulking around the background on the forums here for awhile and have seen some truly great works of manufacturing and the other side of the...

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haha now thats what im talkin bout ! Jonesy nice job man, you got anymore details/pics? that things beautiful.
yeah this wasnt really a topic for...

9 Replies

5305 Views

Last post by anarchy08
Sat Aug 25, 2012 11:29 am
Cannon o death(DWV)

Last post by 8tonsemi
Replies: 2
by 8tonsemi » Sat Aug 25, 2012 6:43 am

First post

This is one of my first guns, back before I knew what DWV was. I was lucky it didn't explode lol.

Damage vid. And yes I was wearing my pajamas....

Last post

That's how many I have uploaded lol. I have made like twenty ball valve cannons lol.

2 Replies

1321 Views

Last post by 8tonsemi
Sat Aug 25, 2012 7:56 am
jonesy42's Qev (crossbow) rifle build

Last post by jonesy42
Replies: 16
by jonesy42 » Sun Jul 29, 2012 8:19 am
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Hi guys.... I am going to use this (chinese made) full - moulded crossbow stock, for my
Qev rifle build.
I want it to be semi - auto, (muzzleloading...

Last post

Hey guys, here is a update of my 6mm qev (ex crossbow stock) project.
As you can see, i have not added my hpa bottle in photo yet.....I have tested...
16 Replies

6506 Views

Last post by jonesy42
Fri Aug 24, 2012 9:01 am
Rough plans for a Pneumatic gun.

Last post by joshywin
Replies: 15
by joshywin » Thu Aug 23, 2012 1:45 pm
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The extinguisher is around 35 cm x 12 therefore you can get an idea of dimensions, It's only a rough kinda diagram. I have two ball valves to make it...

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Yeah but I don't want to have to refill every few seconds.
15 Replies

5228 Views

Last post by joshywin
Fri Aug 24, 2012 8:06 am
Steam powered spud gun?!?

Last post by jackssmirkingrevenge
Replies: 8
by truemanator » Thu Aug 23, 2012 11:58 am

First post

hi,i have had an idea, a steam powered spud gun (it would be extremely clunky to use, but it would be pretty cool) bassclly, the idea is you have a...

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actually, apparantly the projector was not reliable, so the sailors on the ships, instead of loading live grenades into the barrel, which may have...

8 Replies

12385 Views

Last post by jackssmirkingrevenge
Thu Aug 23, 2012 11:59 pm
Cutting the stop rings from bushings and couplings

Last post by mattyzip77
Replies: 2
by micquai » Thu Aug 23, 2012 9:11 pm

First post

The easiest way I've found to remove the stop collars from bushings and couplings is with a router with a flush trim, or a pattern bit. If you have a...

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Not a bad idea, however we all do not have a router. I just use a dremmel. Takes 5 minutes. Good advice though..

2 Replies

1552 Views

Last post by mattyzip77
Thu Aug 23, 2012 9:42 pm
joining qev to a slide valve

Last post by jackssmirkingrevenge
Replies: 1
by shiny455 » Thu Aug 23, 2012 3:13 am

First post

i just bought a cheap qev and slide valve off ebay. I think i made the mistake of buying the one of the cheapest ones i could find to handle the...

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The QEV is probably 3/8 BSP.

I think the easiest solution is to buy a QEV that matches, these should have 1/4 BSP threads:

1 Replies

1695 Views

Last post by jackssmirkingrevenge
Thu Aug 23, 2012 3:23 am
Two valves one trigger

Last post by jackssmirkingrevenge
Replies: 5
by Lockednloaded » Wed Aug 22, 2012 9:38 pm

First post

I'm about to start working on a double-barreled double-valved gun. I want the barrels to fire independently, but I only want one trigger. It'll be...

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No shame in having two triggers...

5 Replies

2369 Views

Last post by jackssmirkingrevenge
Thu Aug 23, 2012 12:14 am
1 1/2" inch sprinkler valve 4 sale

Last post by mattyzip77
Replies: 1
by mattyzip77 » Tue Aug 21, 2012 12:36 pm

First post

For sale is a 1 1/2 inch irritrol 216b sprinkler valve. The valve is already modified and piloted with a 1/4 inch ball valve and male quick connect...

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Here are a few more pics of the valve now piloted with a 3/8 inch qev!! I may have to keep it, it has more balls with the qev piloting it now!!!

1 Replies

1102 Views

Last post by mattyzip77
Wed Aug 22, 2012 12:50 pm
Oh no.

Last post by PotatoEnemy17
Replies: 12
by doomburger » Mon Aug 20, 2012 11:53 am

First post

My PVC pipettes finally arrived in the mail, but before I could even open it I realized an EXTREMELY annoying person (my mom's friend's daughter)...

Last post

Wow that's horrible, that is a spud gunner's nightmare :cry:

:idea: after you finish the cannon you could have her pressureize it with a bike pump...

12 Replies

4014 Views

Last post by PotatoEnemy17
Wed Aug 22, 2012 10:47 am

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