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

1201448 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

857702 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

1020780 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

392549 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

100037 Views

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

Topics

Pressure Rated PVC Hose?

Last post by williamfeldmann
Replies: 12
by HaiThar » Thu Sep 27, 2007 5:35 pm

First post

I'm trying to find some pressure rated flexible hose to use for my next project...I can only find rated up to around 100 psi or so...and I want to...

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It's not air compressor hose, that stiffer high rated stuff is hydraulic hose. It can be used with air but is designed to be chemical resistant and...

12 Replies

2557 Views

Last post by williamfeldmann
Fri Sep 28, 2007 8:30 am
my paintball cannon

Last post by jackssmirkingrevenge
Replies: 9
by grumpy » Wed Sep 26, 2007 2:46 pm

First post

well here is my launcher it is constant air, air source is scuba tanks, i use a two reg system along with safety relief valve and an emergencey...

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size does matter :shock: and f*** me, you really do look grumpy :D

9 Replies

3820 Views

Last post by jackssmirkingrevenge
Fri Sep 28, 2007 1:50 am
silencer volume

Last post by jackssmirkingrevenge
Replies: 16
by ALIHISGREAT » Thu Sep 27, 2007 12:42 pm
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would a volume of 423cm3 be alright compared to a 368cm3 barrel and a 1000cm3 (roughly) chamber.
p.s. i may have done the calculations wrong its...

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Can the silencer be made in such a way as to be removed? What I was thinking is say 3 inch pipe with 3 inch to 1.5 inch reducers that are ground out...
16 Replies

6576 Views

Last post by jackssmirkingrevenge
Thu Sep 27, 2007 10:40 pm
Calculations for building a pneumatic

Last post by Marco321
Replies: 3
by jaffe » Thu Sep 27, 2007 8:13 am

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I´m going to make a small guide with calcultions for pneumatics, but I dont no any calculation :roll: . So can somewhone or anywhone help my out?...

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By calculations, what do you mean? Do you mean like C:B ratio and length and volumes and such, or do you mean like trajectory and muzzle velocity....

3 Replies

2028 Views

Last post by Marco321
Thu Sep 27, 2007 7:24 pm
Compressor Question

Last post by Spudnik Tweaker
Replies: 16
by watto » Tue Sep 25, 2007 6:19 am
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I saw a hand held re-chargeable compressor that pumps only 3.4L per minute, which is pretty slow I know, but I wouldn't mind it going slow if it...

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Does your car have AC? and do you use the AC/defrost? If you have AC and dont use it you can convert it to compress air, go onto google and search...
16 Replies

4979 Views

Last post by Spudnik Tweaker
Thu Sep 27, 2007 1:16 pm
Design question

Last post by goose_man
Replies: 9
by EGOed » Wed Sep 26, 2007 4:59 pm

First post

Well , I have been contemplating making a decent size cannon using 2 sprinkler valves similar to the configuration of the Nuker II that is being be...

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@Goose
You should be able to find those smaller tennis balls at a place like Petsmart, ask for small dog fetch balls. They are very popular for...

9 Replies

2156 Views

Last post by goose_man
Thu Sep 27, 2007 11:35 am
New (I hope...) valve idea/theory

Last post by jrrdw
Replies: 15
by Pilgrimman » Tue Sep 25, 2007 4:52 pm
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Imagine this: a ball valve, but it turns 360 degrees in one dirction, and is powered by a motor so it can be opened and closed quickly and...

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Yes, thats the one. Iknowmy3tables built a good working bolt action loader. Pilgrimman, it would probly do good to ask Iknowmy3tables for his help,...
15 Replies

5169 Views

Last post by jrrdw
Thu Sep 27, 2007 6:51 am
cannon costs

Last post by irishguy
Replies: 7
by irishguy » Wed Sep 26, 2007 4:11 pm

First post

how much would a basic cannon cost maid from abs here in ireland evan if you can get the parts you looking at at least 150 dolors for one and a...

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They dont have pressure rated PVC in Ireland?
iv only seen it in very small diameter piping and cant find pressure rated fitting so it would be...

7 Replies

2114 Views

Last post by irishguy
Wed Sep 26, 2007 7:49 pm
Science project help

Last post by jimmy101
Replies: 18
by squidman » Mon Sep 24, 2007 8:03 pm
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I'm a 12th grader in physics and i've been making comubustion guns for about a year and i was thinking about doing a pneumatic cannon for a science...

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How about doing something that'll give info spudders could really use?

Pick a reasonable chamber and barrel (perhaps 2 Dx12 L chamber, 1 Dx48 L...
18 Replies

4718 Views

Last post by jimmy101
Wed Sep 26, 2007 1:04 pm
High End Pneumatic Launcher for sale

Last post by PCGUY
Replies: 16
by Nuker » Tue Sep 25, 2007 10:31 pm
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The Nuker I and II are for sale. These are some of the nicest, most refined launchers ever constructed. There was only one of each design made. This...

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As stated before, please read the rules, no full cannons can be sold here.

Also I know you put a ton of time and work into 2 very nice cannons,...
16 Replies

6227 Views

Last post by PCGUY
Wed Sep 26, 2007 11:44 am
Tank leaks

Last post by williamfeldmann
Replies: 11
by williamfeldmann » Tue Sep 11, 2007 1:20 pm

First post

So the cannon that I am in the process of building is not big or fancy, just making it to chuck tennis balls for the dogs. The problem is that one of...

Last post

So, the regular old household vacuum worked like a charm. It sealed the hole with no problem. I would suggest leaving the vacuum running for around...

11 Replies

3316 Views

Last post by williamfeldmann
Wed Sep 26, 2007 9:33 am
why isn't GGDT working

Last post by Hubb
Replies: 8
by JDP12 » Tue Sep 18, 2007 8:52 pm

First post

Hey all, I'm back after a few months,

I used to have GGDT on my puter, but deleted it, so now i want to add it back, but when i click on the link to...

Last post

I'm fairly sure this topic is over, seeing as how it appears that the author may have re-obtained a copy of GGDT. But it does seem that the GGDT...

8 Replies

2542 Views

Last post by Hubb
Wed Sep 26, 2007 8:19 am
small spud gun

Last post by varun_2308
Replies: 7
by varun_2308 » Wed Sep 19, 2007 9:55 am

First post

Is it possible to make a gun that can launch ammo (weighing 20gms and 2.5cms in diameter) keeping the dimensions within 30cm x30cm x 30cm???
Please...

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so can anyone tell me what should be the dimensions of the piston????

7 Replies

1816 Views

Last post by varun_2308
Wed Sep 26, 2007 5:11 am
6mm Craft bead flight

Last post by Mitchza89
Replies: 16
by Mitchza89 » Tue Sep 25, 2007 7:29 am
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G'day guys,

To all aussie's who have made something that fires a bb, knows that airsoft is illegal in Australia. They also know how hard it is to...

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thats a really good idea. the cardboard would need to be at a good distance though
16 Replies

4407 Views

Last post by Mitchza89
Tue Sep 25, 2007 7:17 pm
Shooting Canns of soda

Last post by boilingleadbath
Replies: 4
by acoop101 » Tue Sep 25, 2007 3:46 pm

First post

:D :D :D Like the name says I want to make a cannon that will shoot cans of soda, i can't find any details on what the diameter of a soda can is,...

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There's a wiki article on the topic, ya know...

4 Replies

2064 Views

Last post by boilingleadbath
Tue Sep 25, 2007 5:51 pm
First Pneumatic Cannon.

Last post by fatcat
Replies: 5
by Ninty2lxcoupe » Tue Sep 25, 2007 12:39 pm

First post

Ok so here is pic's of my first cannon ever. lol.. I don't have any damage pictures because the only thing i have right now to shoot out of it is...

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good first cannon. i wish my first looked that good.

5 Replies

1980 Views

Last post by fatcat
Tue Sep 25, 2007 5:31 pm
My new Coaxial golfball gun

Last post by williamfeldmann
Replies: 25
by DeathBlade » Sun Sep 16, 2007 8:50 pm
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I just got finished putting my instructable for the launch it together and here is the video of the coaxial in action I have to get my big compressor...

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I just got a 20' stick of sdr 21 for 13.70. Take into account the 2 inch sch 80 and you are looking at mid $2 for a sleeved GB barrel.

If you plan...
25 Replies

7972 Views

Last post by williamfeldmann
Tue Sep 25, 2007 4:03 pm
My first pneumatic blew up on me!

Last post by psycix
Replies: 19
by GrafixBoy » Sun Sep 23, 2007 8:26 pm
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this thing blew apart on me twice. i havent really gotten a good shot off yet because now I'm scared of it. I didnt let the glue set overnight or...

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You could even try to fire 2 barrels with one chamber with such a insane ratio :D
19 Replies

7134 Views

Last post by psycix
Tue Sep 25, 2007 10:15 am
silancer

Last post by dwats32
Replies: 2
by xops007 » Mon Sep 24, 2007 5:16 pm

First post

can you realy make a silancer for your gun? If so it would be good to know.... thanks

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What in gods name is a silancer

2 Replies

1709 Views

Last post by dwats32
Tue Sep 25, 2007 5:43 am
Noob question (help me not kill myself)

Last post by MaxuS
Replies: 12
by GrafixBoy » Mon Sep 24, 2007 10:43 am

First post

if Im using a modded sprinkler valve with an all metal design, how to you attach the metal pipes to the plastic sprinkler valve?

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A QEV is basically the only valve which is easily accessable in the Uk. A 3/4 QEV will outperform a modded 1 sprinkler valve, and theres no modding...

12 Replies

4136 Views

Last post by MaxuS
Mon Sep 24, 2007 1:49 pm
3/4" qev cannon ggdt

Last post by ALIHISGREAT
Replies: 7
by ALIHISGREAT » Sun Sep 23, 2007 3:39 pm

First post

could someone please put this throught ggdt i would like to know what length of chamber to put on my 3/4 paintball bolt action.

the barrel will be...

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yes but i want to know what velocity the cannon will shoot at aswell and how much using a bigger chamber will change that, eg a 50cm chamber compared...

7 Replies

2024 Views

Last post by ALIHISGREAT
Mon Sep 24, 2007 11:13 am
Build log for 1st High Pressure Pneumatic

Last post by clide
Replies: 34
by Novacastrian » Fri Aug 24, 2007 4:11 am
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I love combustions, but i wanted more power from a small chamber firing 12.7mm rounds.
I knew a pneumatic could do this under normal pressure, but...

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LOL, I once tried that method of piston removal too. Didn't break my gun, but it put a 2 hole in the ceiling.
34 Replies

9513 Views

Last post by clide
Mon Sep 24, 2007 10:42 am
Simple high flow regulator - will it work?

Last post by dongfang

by dongfang » Mon Sep 24, 2007 10:01 am

Hi,

I am working on a cannon that needs a regulator from, say, 10 bar to 1-2 bar. It will recharge a firing chamber from a tank, and it should be...

0 Replies

1994 Views

Last post by dongfang
Mon Sep 24, 2007 10:01 am
QEV question And the effect of Chamber Ratio.

Last post by jackssmirkingrevenge
Replies: 1
by socoj2 » Mon Sep 24, 2007 8:59 am

First post

1st.. a 3/8s QEV, would this be large enough for what size chamber...
It has a Coefficient of Volume of 2.98. and is good for 178 SCFM@100 psi...

Last post

1st.. a 3/8s QEV, would this be large enough for what size chamber...
It has a Coefficient of Volume of 2.98. and is good for 178 SCFM@100 psi

The...

1 Replies

903 Views

Last post by jackssmirkingrevenge
Mon Sep 24, 2007 9:18 am
new backpack chamber w/ "air magazine"

Last post by knappengineering

by knappengineering » Sun Sep 23, 2007 11:29 pm

I am planning on making a new pneumatic which will have 2 large 2 chambers with a regulator in a backpack and a hose will go to the rest of the gun....

0 Replies

1572 Views

Last post by knappengineering
Sun Sep 23, 2007 11:29 pm

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