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

1201432 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

604826 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

857689 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

1020671 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

392547 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

100030 Views

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

Topics

Auto diaphragm testing

Last post by Skywalker
Replies: 23
by Skywalker » Thu Aug 09, 2007 9:55 pm
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I've got a small prototype coax pneumatic, with a union-based diaphragm. The barrel is 1/4 brakeline, so pretty small compared to the 3/4 union. What...

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Hmm. I like it. (Did you look at my auto-hammer idea? ) Perhaps since the hammer in this case acts to give a bit of that volume-metered effect you...
23 Replies

8065 Views

Last post by Skywalker
Sun Aug 12, 2007 6:34 pm
Copperhead Semi-Auto Method

Last post by Hotwired
Replies: 8
by Hotwired » Fri Aug 10, 2007 3:38 pm

First post

A snippet from the Copperhead development studios ^_^

Not long after completing Copperhead Prime I found something interesting about the dual...

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@Clide

The diagrams are simplified but I intend to use the same style of piston QEV I have on my existing cannon and it works in a...

8 Replies

8270 Views

Last post by Hotwired
Sun Aug 12, 2007 5:41 pm
Large Inline Ball Valve Cannon

Last post by 666lucky693
Replies: 91
by 666lucky693 » Sat Aug 04, 2007 1:51 pm
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its a inline that is made with a 1 inch ball valve with a end that looks like a flash hider

Last post

yea ill try to make a vid for it
91 Replies

19353 Views

Last post by 666lucky693
Sun Aug 12, 2007 3:53 pm
will this regulator work for a co2 setup

Last post by frankrede
Replies: 2
by quiggly17 » Sun Aug 12, 2007 1:13 pm

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i need to know if a regulator like this will work or not

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Its not a co2 regulator.
So it would be destroyed if you just through 800+psi into it.

2 Replies

988 Views

Last post by frankrede
Sun Aug 12, 2007 3:47 pm
DSTV - Save the birds, ban the (blow)guns

Last post by Modderxtrordanare
Replies: 47
by dongfang » Sat Jul 28, 2007 3:47 pm
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I got tired of triggering my piston valves with expensive sprinkler valves and blowguns with too little flow, so I thought up the DSTV (Darn Simple...

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I was going to say superglue the o-ring in and that should solve it slipping at 6bar+
47 Replies

15340 Views

Last post by Modderxtrordanare
Sun Aug 12, 2007 11:40 am
Carnage! Updated (with more videos)

Last post by dongfang
Replies: 47
by DYI » Tue Aug 07, 2007 3:21 pm
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Just to start off, if any mods think that this should be moved to the showcase, feel free to do so, as I had a hard time deciding where to put it....

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DYI, it´s fired with a sabot. From a 120 mm cannon (smoothbore?) it seems.

Regards
Soren
47 Replies

16528 Views

Last post by dongfang
Sun Aug 12, 2007 8:27 am
Pump-action reload

Last post by us sniper
Replies: 30
by flamerz14 » Fri Jun 01, 2007 1:46 am
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I was wondering if it is possible to have a pump-action reload like a shotgun in a spudgun cos it will look VERY cool.So far on this websites I have...

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What type of ammo would this be for? Would the magazine be parrallel to the barrel? Right now I am trying to design something similar but I am...
30 Replies

10047 Views

Last post by us sniper
Sat Aug 11, 2007 11:20 pm
The "black death" pnuematic paintball gun

Last post by randompkguy
Replies: 82
by SpudBlaster15 » Wed Jan 10, 2007 9:45 pm
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Lorem ipsum dolor sit amet, consectetur adipiscing elit. Cras nec placerat erat. Vivamus dapibus egestas nunc, at eleifend neque. Suspendisse...

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Plus, the barrel of any pneumatic gun is at a pressure of 15 psi or less when firing.

You sure about that? I would think that the barrel would be...
82 Replies

26270 Views

Last post by randompkguy
Sat Aug 11, 2007 6:26 pm
Semi-Auto valve idea

Last post by jaffe
Replies: 14
by us sniper » Wed Aug 01, 2007 12:09 am

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I was wondering if this valve would work. It is similar to a system that is used on a real marker but with some changes because I do not have a lot...

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You can use the washer trigger system, in the nerf world it´s very populair with homemade´s.
Greetings from the Dutch, Jaffe

14 Replies

3560 Views

Last post by jaffe
Sat Aug 11, 2007 2:30 pm
Leaking

Last post by frankrede
Replies: 10
by Mooglebass » Fri Aug 10, 2007 6:26 pm

First post

I recently build a Pneumatic cannon. 1.5 x 3ft barrel and a 1.5 x 2 foot chamber. Im using a 1 sprinkler vavle that I recently bought from BCram....

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but that has nothing to do with the sprinkler valve, read the topic before you post

10 Replies

2997 Views

Last post by frankrede
Sat Aug 11, 2007 2:00 pm
problem with gun

Last post by spud yeti
Replies: 3
by flamerz14 » Sat Aug 11, 2007 5:37 am

First post

I just assembled my marble ammo ripper system(MARS) four hours ago. It uses a 750ml aluminium bottle as a chamber and 2 feet of 1/2 as the barrel,...

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Well, you could look for a reducer, and adapt it to fit. You should use the industrial epoxy, its much better for strength if you ask me.

3 Replies

1091 Views

Last post by spud yeti
Sat Aug 11, 2007 6:16 am
pressure ratings

Last post by frankrede
Replies: 14
by paintballuh » Mon Jul 30, 2007 2:14 pm

First post

on a piece of pvc, do the pressure ratings show the absolute breaking point, or the highest pressure you can safely take it?

thnx :)

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haha. i was at a cooledge dorm and the sprinkler system was all PVC.

i came to the thinking that they proboably didnt need the sprinkler heads,...

14 Replies

5018 Views

Last post by frankrede
Fri Aug 10, 2007 11:47 pm
Co2 Setup?

Last post by homedepotpro
Replies: 5
by e1337 » Fri Aug 10, 2007 8:29 pm

First post

Can I attach a regulated co2 tank directly to my sprinkler valve? Will It give considerable power or will it just put out the little co2 that is...

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hey you are from washington homedepotpro.
yeah, what of it. are you also from here. if so where at

5 Replies

2204 Views

Last post by homedepotpro
Fri Aug 10, 2007 10:24 pm
Piston Questions

Last post by pvcmaster
Replies: 4
by pvcmaster » Tue Aug 07, 2007 6:13 pm

First post

I am working on a piston valve with a 2 chamber port and 1.5 barrel port, and I am having some trouble finding answers to my questions. First of all,...

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Ok thanks, that sounds like an easier solution. I have one last question. My valve is almost finished, but I was planning to use a 1 1/2 slip x...

4 Replies

1317 Views

Last post by pvcmaster
Fri Aug 10, 2007 4:17 pm
chamber reduction

Last post by spud yeti
Replies: 6
by supa_midget » Mon Jul 30, 2007 5:02 am

First post

My latest cannon (lol my first) is very loud, the chamber volume is probably to large. GGDT indicates that removing a ft of chamber will only drop...

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No ways, make the barrel longer and save the other one for a different project :D

6 Replies

2332 Views

Last post by spud yeti
Fri Aug 10, 2007 8:37 am
Teflon rod piston?

Last post by frankrede
Replies: 17
by shud_b_rite » Sun Aug 05, 2007 11:12 pm
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In engineering at school today I was making a bushing for a project out of teflon rod by spinning it on the lathe. Then the idea hit me, would a...

Last post

polymer fume fever
17 Replies

8430 Views

Last post by frankrede
Thu Aug 09, 2007 2:11 pm
Mini Piston Gun

Last post by spud yeti
Replies: 18
by ethal1222 » Fri Feb 09, 2007 6:40 pm
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This is my first attempt at a piston gun. It has a 2 SCH 80 chamber and a 1/2 SCH 40 barrel. It uses a barrel sealing piston made out of a 1 coupling...

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Nice looking cannon, well done. I agree, leave it unpainted!
18 Replies

9272 Views

Last post by spud yeti
Thu Aug 09, 2007 1:17 am
Need better pilot

Last post by turbohacker
Replies: 8
by turbohacker » Wed Aug 08, 2007 5:43 pm

First post

I am finilly building an all metal pnumatic T shirt gun. What you see here is as far as I have gotten. (I dont have very much spare time lately)

I...

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There are two probloms with that idea. One, when the current is applied the rod is sucked in, not pushed out. And Second, I would like the gun to be...

8 Replies

2374 Views

Last post by turbohacker
Wed Aug 08, 2007 11:54 pm
Another Triggered Burst Disc Gun

Last post by potatoflinger
Replies: 12
by noname » Tue Aug 07, 2007 11:05 pm

First post

Basically a version of Gort's but much less complicated. The trigger is simply a sharpened dowel which an acrylic cube on the back, to push. A piece...

Last post

That looks like it could have quite a bit of power, great gun :)

12 Replies

3532 Views

Last post by potatoflinger
Wed Aug 08, 2007 7:28 pm
BB Sniper Rifle

Last post by Pete Zaria
Replies: 29
by spudthug » Thu Jul 19, 2007 2:13 pm
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Hello again, im full of final completion of guns today (im also fixing my coaxial). Well this is my BB sniper rifle. it shoots airsoft bbs for now...

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Adding a barrel support system so that the entire weight of the barrel isn't on that one fitting would be a good idea.

Other than that, extremely...
29 Replies

11058 Views

Last post by Pete Zaria
Wed Aug 08, 2007 3:17 pm
u2-piston rifle

Last post by experament-u2
Replies: 32
by experament-u2 » Wed Aug 01, 2007 3:27 am
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this is my finished marble piston rifle with test camo paint job 8)
it is made completely out of 20mm pressure rated pipe and the valve is piloted...

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So let me get this straight: the barrel slides right through the tee, the endcap goes on the back of the barrel, the piston slides in the barrel,...
32 Replies

11535 Views

Last post by experament-u2
Wed Aug 08, 2007 5:46 am
need some help with c:b ratios

Last post by Pilgrimman
Replies: 15
by trae08 » Mon Aug 06, 2007 9:32 pm
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ok i think i posted a thread like this before but couldn't find it. so my problem is this. i have a 5 ft piece of sdr 21 gold ball barrell sleeved in...

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If the projectile is right up against the breech.
15 Replies

4003 Views

Last post by Pilgrimman
Wed Aug 08, 2007 12:40 am
1/4in Question

Last post by Mitchza89
Replies: 4
by Mitchza89 » Tue Aug 07, 2007 4:39 am

First post

Hey guys,

I need a 1/4in compression fitting that fitted 1/4in brass/copper pipe, ok.... 1/4in is 8mm..

Therefore does 1/4in pipe have an I.D of...

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Thanks alot for that jimmy. Thats what I first thought. Looks like im back to the drawing board...

Cheers.

4 Replies

1568 Views

Last post by Mitchza89
Tue Aug 07, 2007 6:41 pm
Adding C02

Last post by PinHead
Replies: 11
by ceaves » Sun Aug 05, 2007 12:54 pm

First post

I've built a T-Shirt cannon, and I must say it works good. This is using an air compressor to air up 100 psi or so, but its a one shot Charlie...

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I realize that, I just meant that those already had the regulator built in, which would save you some money, and space. It would require less...

11 Replies

2938 Views

Last post by PinHead
Tue Aug 07, 2007 5:47 pm
GGDT issues

Last post by boilingleadbath
Replies: 8
by flamerz14 » Mon Aug 06, 2007 8:55 am

First post

When the outer diameter(chamber section) is increased but the inner diameter does not change, how come the volume increases?

Last post

D-Halls explains this just about as well as it can be explained, IMO.

However, you guys seem to be reluctant to read what other people have already...

8 Replies

2692 Views

Last post by boilingleadbath
Tue Aug 07, 2007 3:49 pm

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