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

1205199 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...

Last post

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

606006 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

858670 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

1021902 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

393087 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

100270 Views

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

Topics

Need a simpler solution to piston valve problem

Last post by mark.f
Replies: 52
by McThunderThighs » Sat Sep 13, 2008 11:29 pm
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Hey all! A bunch of guys and I got an assignment to build a potato gun (formally a tennis ball gun) and since we have a couple months and it is...

Last post

That's a bad practice. Could get an infection.

I love this launcher except for the DWV, but that topics been thrashed dead and gone so let's...
52 Replies

14801 Views

Last post by mark.f
Sun Sep 28, 2008 8:54 am
1.5 inch sch 40

Last post by mark.f
Replies: 11
by Anon » Wed Aug 30, 2006 7:15 pm

First post

Ok so I bought some fittings and 1.5 inch sch 40 for my 1st pneu I will be building in september and was wondering what length do most of you use so...

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In other news, Google literally will provide you the answer, lock stock and barrel.

11 Replies

4180 Views

Last post by mark.f
Sun Sep 28, 2008 8:51 am
Serviceable coaxial

Last post by noname
Replies: 9
by Demon » Tue Sep 23, 2008 6:47 am

First post

I seen a lot of people making serviceable coaxial but i dont understand how...

If i was using male and female adapter, there will be a lot of dead...

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It is difficult to build a cannon with a diaphragm that doesn't need to be reset every few shots.

I managed to nail it first try without any hassle...

9 Replies

1878 Views

Last post by noname
Sun Sep 28, 2008 8:42 am
Sprinkler Valve Trouble

Last post by ThumbzUpTheoden
Replies: 6
by ThumbzUpTheoden » Thu Sep 25, 2008 9:42 pm

First post

I've read the entire topic on sprinkler valve troubleshooting and still my modded valve leaks all the air out of the blowgun. Any other ideas would...

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I fixed it. It was because the equalization hole was way to big. Now my cannon works like a charm. Powerfull as hell

6 Replies

4460 Views

Last post by ThumbzUpTheoden
Sat Sep 27, 2008 1:57 pm
the 1.5in 150$ sprinkler valve

Last post by PhotoKirk
Replies: 14
by rp181 » Sat Sep 06, 2008 4:42 pm

First post

I found a 1.5 in sprinkler valve today, they discarded it because the solenoid was broken (it really wasn't, it was just caked with mud). It looks...

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I just scored 2 of those valves on eBay. The brass pipe can be cut down and inserted backwards. The part that has the galvanized nut is 3/8 (i think)...

14 Replies

3671 Views

Last post by PhotoKirk
Thu Sep 25, 2008 7:13 pm
Anti siphon sprinkler valve

Last post by Demon
Replies: 2
by Demon » Thu Sep 25, 2008 3:20 pm

I wanna make a simple spudgun(after had completed my coaxial)

And i ended up ,for the simplest design, using this valve:

Does it have enough...

2 Replies

1131 Views

Last post by Demon
Thu Sep 25, 2008 6:20 pm
Need help with a Halloween concussion air cannon design

Last post by OpenTrackRacer
Replies: 15
by OpenTrackRacer » Mon Sep 22, 2008 10:47 pm
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I'm working on a concussion air cannon for Halloween. The idea is to generate a loud report to scare visitors and to set off sound activated props....

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I think I'm going to alter the configuration to a side connection. It'll be interesting to see if that changes the heating location. Air warms up...
15 Replies

5320 Views

Last post by OpenTrackRacer
Thu Sep 25, 2008 5:27 pm
Harpoon gun

Last post by brplatz
Replies: 26
by brplatz » Sun Sep 21, 2008 2:30 pm
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Hey all, i have made many cannons before as some know, but this is a first attempt at a retrievable harpoon type gun.

Pretty basic but i think it...

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its 3/4 to 1/2 bushing with plenty of JB Weld
26 Replies

17009 Views

Last post by brplatz
Thu Sep 25, 2008 1:23 pm
Super glue for pneumatics?!

Last post by jimmy101
Replies: 17
by sirspuddest » Sat Jul 12, 2008 12:27 pm
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So, I just got my buddy into spud gunning a few weeks ago, and he got the bug REAL bad. He's built a combustion, a mini, and a pneumatic over the...

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Don't use super glue, period. Why risk it? If it wouldn't pass building code for a pressurized water system (max pressure <100 PSI) why would you...
17 Replies

5299 Views

Last post by jimmy101
Thu Sep 25, 2008 12:13 pm
pressure loss

Last post by psycix
Replies: 5
by WEEMAN » Tue Sep 23, 2008 2:09 pm

First post

Im currently working on a rifle sized spudgun with a nice big expansion chamber(1 1/2 foot to 2 foot) and a shoretr barrel(like 3 foot) but the only...

Last post

starman, its pneumatic

5 Replies

2228 Views

Last post by psycix
Thu Sep 25, 2008 11:10 am
Barrel Sealing Piston Cannon Problem

Last post by MrCrowley
Replies: 2
by spudkilla224 » Wed Sep 24, 2008 5:07 pm

First post

Hello, I built a barrel sealing piston valve cannon, and it seals against the barrel fine, but when i turn the 1/4 ball valve to exhuast the air...

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While a larger pilot valve would work, cutting down the pilot volume by filling the extra space with a larger bumper or making the piston a tighter...

2 Replies

1153 Views

Last post by MrCrowley
Wed Sep 24, 2008 11:44 pm
more help please with t-shirt gun not sealing properly

Last post by JDP12
Replies: 12
by JDP12 » Wed Sep 24, 2008 8:12 am

First post

Hey all, i got some new rubber and a washer for my t-shirt gun but i still can't get it to work quite right. Right now the barrel seals almost all...

Last post

I started a new thread about the success of this gun, please look at it.

Thanks

12 Replies

3801 Views

Last post by JDP12
Wed Sep 24, 2008 9:46 pm
Ebay spudgun selling

Last post by mark.f
Replies: 8
by Demon » Mon Sep 22, 2008 3:23 pm

First post

I want to sell spudguns on ebay

And i wanna know if its legal or no to sell them

It will be an small inline 1 inchx12 inch barrel and chamber with...

Last post

F*cking serious business.

I wouldn't get into the business of selling spudguns. Too much liability. You can rant and rave all you want in your...

8 Replies

2362 Views

Last post by mark.f
Tue Sep 23, 2008 8:47 pm
Ball valve breech load

Last post by NoXi
Replies: 7
by NoXi » Mon Sep 22, 2008 10:19 pm

First post

Hey guys, i havent posted here in a while, but i am once again into making another spud gun, well a bb gun. I am trying to make a breech loading for...

Last post

Are you using the same ball valve for breech loading and releasing chamber pressure? If so i'm not so sure anyone's done that- and if they have...

7 Replies

4247 Views

Last post by NoXi
Tue Sep 23, 2008 6:35 pm
freon from fridge

Last post by jimmy101
Replies: 48
by homedepotpro » Fri Sep 19, 2008 7:31 pm
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So I've been looking into building a fridge compressor. I found a fridge on craigslist but I'm having a hell of a time finding a place that takes the...

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Freons are generally not flammable (or not very flammable). That's one of their very useful properties. They are also generally very low toxicity....
48 Replies

13086 Views

Last post by jimmy101
Tue Sep 23, 2008 11:58 am
a hammer valve ??

Last post by jackssmirkingrevenge
Replies: 9
by far_cry » Mon Sep 22, 2008 11:34 am

First post

will, i think about biulding a rifle with hammer valve because i am tired to pump the champer evrey shoot
so i have some question to ask
there is a...

Last post

I love the talon disign
can anyone make/find a drawing of the valve( inclusive the working of this trigger)

9 Replies

2380 Views

Last post by jackssmirkingrevenge
Tue Sep 23, 2008 11:16 am
piston vs burst disk

Last post by psycix
Replies: 3
by jon_89 » Mon Sep 22, 2008 6:23 pm

First post

So I just built a cannon with a 2x30 inch chamber and a 1.5x48 inch barrel. Well after shooting it using a modified sprinkler valve I realized using...

Last post

Burst disks are for pure power and basically only for records and experiments.
You need some burst material each shot, which may cost money. Also it...

3 Replies

972 Views

Last post by psycix
Tue Sep 23, 2008 10:46 am
My new piston and easy

Last post by psycix
Replies: 3
by BlackH » Mon Sep 22, 2008 12:31 pm

First post

This is a piston i stumbled onto when I was Buying a ball-tap

Its a 15mm (they call it that but its bigger) cobra WASHER PLATE, and I made it fit...

Last post

Looks good, but also looks somewhat heavy.
Make sure you've got a really good bumper.

3 Replies

2523 Views

Last post by psycix
Tue Sep 23, 2008 10:32 am
Help with Scuba Tank Appreciated

Last post by ALIHISGREAT
Replies: 4
by Not_Again » Mon Sep 15, 2008 8:52 pm

First post

I am looking at a spare tank for a couple of shots so that I can spud on the go.

The specs are here, and the tank is $90 with valve setup.
Features...

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i would use a high pressure/small chamber design with a QEV possibly to keep it compact enough to all fit in a golf bag.

4 Replies

1766 Views

Last post by ALIHISGREAT
Sun Sep 21, 2008 4:29 pm
Coax With Recoil System

Last post by blind909
Replies: 14
by blind909 » Fri Sep 12, 2008 7:06 pm

First post

This is my old Coax, but has an upgrade, the flag. It looks better with the flag IMO. The recoil system is a stand I made from an old Rock Tumbler...

Last post

The recoil system is no longer a recoil system. It was pretty much useless, and so instead, I removed the rubber band, and just epoxied the stand to...

14 Replies

4345 Views

Last post by blind909
Sun Sep 21, 2008 3:56 pm
Pneumatic shotgun

Last post by psycix
Replies: 12
by Demon » Sun Sep 14, 2008 12:40 pm

First post

The specs:

1 inch x 2 foots barrel.

modded sprinkler valve(1 inch).

1.25 inch by 2 foots chamber.

I do clay shooting with it(throw a potato, aim...

Last post

I mean, you COULD do that.
Add more layers (maybe aluminum foil?) and you'll have a burst disk.

12 Replies

4081 Views

Last post by psycix
Sun Sep 21, 2008 1:28 pm
Very high velocity pneumatic parts.

Last post by jackssmirkingrevenge
Replies: 16
by kiwi of nitro » Sat Sep 20, 2008 1:13 am
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I've been building combustion cannons and want to try something new.

I'm looking to launch AAA, AA C or D size batteries, out of a pneumatic at the...

Last post

If you're purely interested in performance, I would agree with the triggered burst disk suggestion. It's relatively easy to build if you can source...
16 Replies

26940 Views

Last post by jackssmirkingrevenge
Sun Sep 21, 2008 2:31 am
Sprinkler Valve for Gas-Blowback?

Last post by grumpy
Replies: 8
by sv490665 » Thu Sep 18, 2008 12:09 pm

First post

I got a project for someone with some time, figure out if you can use the hole from the bottom of the solenoid port that leads to the exhaust side of...

Last post

this sounds alot like the epic ice, that uses a trapdoor that slides back and forth to load paintballs.

8 Replies

2887 Views

Last post by grumpy
Sat Sep 20, 2008 8:52 am
6mm piston launcher

Last post by jackssmirkingrevenge
Replies: 13
by jackssmirkingrevenge » Mon Sep 01, 2008 2:36 pm

First post

Nothing special and not much to look at really, a metre long 6mm brass barrel, section of steel water pipe as a chamber, schrader fill/pilot valve...

Last post

No particular use in mind, I just feel wierd living in a house without guns :roll: and an airsoft glock doesn't quite cut it

13 Replies

6661 Views

Last post by jackssmirkingrevenge
Sat Sep 20, 2008 12:02 am
Homemade airow design

Last post by Demon
Replies: 10
by Demon » Tue Sep 16, 2008 5:15 pm

First post

I started to love the Airows the first time i looked at them

So i decided to make an homemade one
(its incredible what we can do with plumbing...

Last post

NEW IDEA:

why dont replace the barrel by an sort of bbmg?

10 Replies

4844 Views

Last post by Demon
Fri Sep 19, 2008 3:59 pm

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