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

1205690 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

606166 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

858768 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

1022058 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

393150 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

100297 Views

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

Topics

Crossbow type pneumatic

Last post by jor2daje
Replies: 5
by jor2daje » Mon Nov 17, 2008 8:16 pm

First post

I just made a simple crossbow out of some wood and a bow I got a garage sale. I was thinking maybe i could make some sort of piston inside a chamber...

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Ok I just made a prototype and it is pretty successful.

5 Replies

1979 Views

Last post by jor2daje
Tue Nov 18, 2008 7:24 pm
Valve at barrel or chamber?

Last post by theepicmool
Replies: 3
by theepicmool » Tue Nov 18, 2008 4:42 pm

First post

I've been lurking around and haven't seen this question addressed anywhere. Where is a better place for a sprinkler valve on a potato cannon: At the...

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thanks :) Its what i kind of suspected but I just found it strange that all the Spudgun Technology Center's cannons are with chamber located valves.

3 Replies

1312 Views

Last post by theepicmool
Tue Nov 18, 2008 4:59 pm
Straight barrel vs. bent barrels

Last post by judgment_arms
Replies: 16
by tvouthilak » Fri Nov 14, 2008 10:46 am
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I'm working on a new spud cannon design and was wondering something. Is there any disadvantage of putting bends in your barrel vs. a straight barrel?...

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100 spudbux for the one who first manages to shred a marble in his barrel. (Pneumatics only) :D

I'll add 100 spudbux, doubling the pot! :D :lol:
16 Replies

6922 Views

Last post by judgment_arms
Tue Nov 18, 2008 3:49 pm
Smooth bore or Rifled

Last post by jackssmirkingrevenge
Replies: 16
by john bunsenburner » Tue Nov 11, 2008 2:05 pm
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Again and again we are all put before the choice; Smooth bore or rifled barrels for our newest gun. Now I am still in the act of building my first...

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I just found an 8mm rifled long barrel from a Czech gun that has a threaded receiver end. If I get the chance I will try it out attached to the...
16 Replies

6817 Views

Last post by jackssmirkingrevenge
Tue Nov 18, 2008 4:52 am
Need Help?

Last post by psycix
Replies: 6
by x3000 » Mon Nov 17, 2008 10:03 am

First post

Check this link if you need help just ask your question on this link (for fast respond).
French site but no prob you can ask in english.

Last post

Sans gaz mecanique electrique

Does that mean it's electric like airsoft guns? I agree with starman, some details would be nice. Do the barrels...

6 Replies

1006 Views

Last post by psycix
Mon Nov 17, 2008 2:15 pm
interesting motar-type design

Last post by Lentamentalisk
Replies: 7
by FishBoy » Sun Nov 16, 2008 1:29 pm

First post

Just found this & I thought it was pretty cool, anyone got any ideas on how it might work?

Last post

If I were to do this, I would use the bottle as a burst disk, and screw it on, rather than just friction fit. Just fill it up to a 5x mix, and ignite...

7 Replies

2952 Views

Last post by Lentamentalisk
Sun Nov 16, 2008 8:29 pm
Semi Auto Nerf Gun

Last post by PVC Arsenal 17
Replies: 78
by PVC Arsenal 17 » Sat Oct 18, 2008 11:48 am
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I posted a thread a while back about a game called Humans Vs. Zombies. It's like a real life version of the game Infection if any of you play Halo 3....

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The trigger is easy to pull. The RoF is determined by a lot of factors, mainly the pressure you're running, the pilot and cylinder volumes, and the...
78 Replies

39668 Views

Last post by PVC Arsenal 17
Sun Nov 16, 2008 8:21 pm
Air gun finsihed!

Last post by john bunsenburner
Replies: 28
by john bunsenburner » Thu Nov 13, 2008 1:36 pm
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OK after posting numerous quesions I have finnally got to thr point where I can say that my gun is looking great! The only thing that you spud...

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OK i am off to build!
28 Replies

8148 Views

Last post by john bunsenburner
Sat Nov 15, 2008 11:36 am
Pneumatic help :/

Last post by Gippeto
Replies: 1
by jmeyer1022 » Sat Nov 15, 2008 10:34 am

First post

I decided I'd continue my Advanced Combustion cannon plan pretty close to done just gotta get a few more fittings for the direct propane inject and...

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Perhaps use threaded black iron fittings between threaded pvc to get to the right pipe size?

It's a pain when you cannot find the right parts isn't...

1 Replies

982 Views

Last post by Gippeto
Sat Nov 15, 2008 10:50 am
questions about .40cal cannon

Last post by Gippeto
Replies: 10
by SilentCyan » Wed Nov 12, 2008 1:56 pm

First post

okay recently i've been thinking about building a .40cal cannon. i've been thinking about making it a piston valve but i might get lazy and just use...

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probably :lol:

would you suggest any type in particular? i'm pretty much out of the cheap stuff i bought a while ago

You can't really go wrong...

10 Replies

3090 Views

Last post by Gippeto
Sat Nov 15, 2008 1:15 am
flintlock pistol

Last post by Brian the brain
Replies: 10
by koolaidman » Thu Aug 21, 2008 5:37 pm

First post

hey guys, i have finally acculated enough fittings to make a spare parts gun. its a pretty pathetic pneumatic, but its a fun little plinker. i get it...

Last post

You just did...

Or combine it with this one

Wait...that sounds like a project!

10 Replies

4958 Views

Last post by Brian the brain
Thu Nov 13, 2008 3:43 pm
Ambitious noob's initial brainstorming

Last post by Brian the brain
Replies: 17
by Bando_Red » Tue Nov 11, 2008 2:56 pm
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I'm a general purpose tinkerer.Pneumatics and air pressure and stuff like that aren't my strong suit.So far,I'v decided that there area few prime...

Last post

I accused you of hurting my feelings..not of being conventional..

I was referring to ....the.....NORMAL guys.. :D

We need innovators, not...
17 Replies

6843 Views

Last post by Brian the brain
Thu Nov 13, 2008 2:58 pm
Help with Shotgun.

Last post by Brian the brain
Replies: 29
by SpudsMcGee » Tue Nov 11, 2008 9:20 pm
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I know I just posted a Help Me thing, but I put a lot of thought in to my plans and I need specific help.

Here are my plans:
Type of Cannon-...

Last post

I could do it:

On my way to building a smaller one powered by 12 gram's.
Not for noobs anyway.

I'll go for the curved handle in stead of the...
29 Replies

10824 Views

Last post by Brian the brain
Thu Nov 13, 2008 2:47 pm
Sniper Spud Gun... Help Me, please!

Last post by psycix
Replies: 3
by SpudSniperJesus » Mon Nov 10, 2008 7:55 pm

First post

Ok, heres the deal, I am building a sniper rifle and I need help. I am thinking about making it air powered with a breech and gravity loading...

Last post

a release valve where if I over fill it, it would let the extra air escape with out blowing up
Pop-off valves are nifty little things that pop open...

3 Replies

1147 Views

Last post by psycix
Thu Nov 13, 2008 2:16 pm
Will this Cannon Shoot 250+ yards?

Last post by jackssmirkingrevenge
Replies: 15
by jmeyer1022 » Wed Nov 12, 2008 7:27 pm
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Decided to skip out on piston for my first Pneumatic, Simple going to do what I did for my first combustion, start simple then advance.

The barrel...

Last post

Also burst disks on pneumatics are a little cumbersome to setup and get right.

It depends, if you can get your hands on cam-lok fittings it's a...
15 Replies

4216 Views

Last post by jackssmirkingrevenge
Thu Nov 13, 2008 4:43 am
How can I make my piston seal against the barrel?

Last post by dongfang
Replies: 7
by nitornos » Tue Nov 04, 2008 11:42 pm

First post

First of all, hello spudfiles, this is my first post, and I wanna thank everyone on here for inspiration and all their awesome s***.
I've got my...

Last post

Hi,

If your valve is made serviceable, so you can take the piston out through the back, you can save it: Make a second piston with a flat front...

7 Replies

4765 Views

Last post by dongfang
Wed Nov 12, 2008 4:53 pm
semi auto

Last post by jackssmirkingrevenge
Replies: 2
by jitup » Wed Nov 12, 2008 1:56 pm

First post

Hello, this is sort of a brain picking forum, so I need some suggestions.

History
I am recently new to the scene. I built a 2 barrel combustion spud...

Last post

A good place to start ;)

2 Replies

1114 Views

Last post by jackssmirkingrevenge
Wed Nov 12, 2008 3:53 pm
new cannon help

Last post by starman
Replies: 11
by jmeyer1022 » Tue Nov 11, 2008 5:25 pm

First post

plan so far is to take

On one end ill put a cleanout which will have a valve for filling

Off the 2 sides I'll put 45 degree bends then another...

Last post

fill it with hot glue?

Too heavy.

Or just pvc cement...

Uuuuhh NO.... If anything epoxy.

11 Replies

4624 Views

Last post by starman
Tue Nov 11, 2008 11:09 pm
How do i make a 3" piston

Last post by MrCrowley
Replies: 2
by taylorfromsav » Tue Nov 11, 2008 7:20 pm

First post

I am fairly new to the spudgunning. To make a good pneumatic, i need a 2 or 3 valve. how would i aquire or create one of these?

Last post

See my PM.

2 Replies

1082 Views

Last post by MrCrowley
Tue Nov 11, 2008 7:50 pm
using valve exhaust with grav mag

Last post by Hotwired
Replies: 4
by FishBoy » Tue Nov 11, 2008 5:29 pm

First post

Ok, I just got this idea into my head today. I was thinking about both a paintball barrel and a way to use the exhaust of my gun & I came up with...

Last post

Not too obvious at first :P

But that also uses an air blast while firing to close off the magazine. It doesn't use pilot gas because that one uses...

4 Replies

1159 Views

Last post by Hotwired
Tue Nov 11, 2008 6:55 pm
Help please...

Last post by FishBoy
Replies: 5
by SpudsMcGee » Mon Nov 10, 2008 10:11 pm

First post

I have always been interested in spud guns, but I have only made those little pill bottle combustion guns.
I want to make my first air powered gun a...

Last post

I would definitely suggest a modded sprinkler valve as your main valve. Things to know-
1-Modding sprinkler valves is extremely easy

2-The only...

5 Replies

1364 Views

Last post by FishBoy
Tue Nov 11, 2008 4:56 pm
Potatoflinger's paintball gun

Last post by Carlman
Replies: 21
by potatoflinger » Tue Oct 09, 2007 6:29 pm
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This is my biggest cannon, it's the first one that I've posted on this site but it's the sixth or seventh pneumatic that I've built. The pictures...

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whilst this is kicked anyway id like to add that the whistleing is caused by the hole in the ballvalve when closed that is exposed by he breach port,...
21 Replies

11060 Views

Last post by Carlman
Tue Nov 11, 2008 11:18 am
my first spud gun

Last post by starman
Replies: 6
by zach12 » Sun Nov 09, 2008 4:00 pm

First post

hey, :wink:
i am happy to anounce that my first spud gun was a sucess :) .The chamber is a 2L pepsi bottle.My barrel is a 14in. paintball barrel. I...

Last post

It is an okay starter gun, but for your next one research a little more and use pvc piping.

SpudsMcGee, you have just been implored to do the same...

6 Replies

2675 Views

Last post by starman
Mon Nov 10, 2008 10:39 pm
Help with Gun.

Last post by jmeyer1022
Replies: 21
by jmeyer1022 » Mon Nov 10, 2008 2:17 am
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I've been a fan of combustion launchers but I'm getting tired of buying propane and other propellants. Seeing as I already have a 135 Max PSI air...

Last post

I'm not looking for breech loading or interchangable barrels just a 2 inch sleeved barrel.

I plan on cutting an axe can

Right above the dented...
21 Replies

3780 Views

Last post by jmeyer1022
Mon Nov 10, 2008 7:39 pm
Is there a way to measure the force inflicted on the ammo?

Last post by starman
Replies: 2
by monkeyman » Mon Nov 10, 2008 6:41 pm

First post

Basically, if i fill up my chamber with 100 psi of air pressure. Is there a way to find out how many newtons of force are acting on the ammunition...

Last post

Go get D_Hall's GGDT program. It will model your gun, pressure and ammo and give you pretty darned good results.

He also has HGDT available which is...

2 Replies

1252 Views

Last post by starman
Mon Nov 10, 2008 6:59 pm

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