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

1203328 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

605507 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

858319 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

1021479 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

392840 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

100149 Views

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

Topics

post troubleshooting valve questions

Last post by rp181
Replies: 1
by airsofter135 » Thu Jun 26, 2008 4:15 pm

First post

ok i just modded my orbit 3/4 sprinkler valve and construction went without problems and through a compilation of several instructions and tips form...

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Diaphragm's dont work at such low pressures. Use higher pressure and it should not leak. Your mouth is 2psi max, so not enough. You also cant fill to...

1 Replies

2070 Views

Last post by rp181
Thu Jun 26, 2008 4:17 pm
Would this make a good piston???

Last post by ImHUGEnJAPAN
Replies: 7
by ImHUGEnJAPAN » Wed Jun 25, 2008 4:00 pm

First post

I was wondering if this would make a good piston

Materials:

2 diam (whatever size I need) round steel Bar stock cut to 1 to 2 length
Old mouse pad...

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Thanks for the feedback! I thought steel might be too heavy. I a few other ideas in mind.

Thanks agian!

7 Replies

2081 Views

Last post by ImHUGEnJAPAN
Thu Jun 26, 2008 7:35 am
A 'My First Plans' and Hello!

Last post by psycix
Replies: 9
by Butterfli » Wed Jun 25, 2008 6:08 am

First post

Hi Spudfiles, I've been gawping at some of the amazing pieces of work on this site for a while, and while i don't really know much about the...

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If you want knowledge, you should read the spudwiki. The link to that is on top of this site.
In the wiki you can find lots and lots of information,...

9 Replies

3861 Views

Last post by psycix
Thu Jun 26, 2008 6:28 am
how safe is this thing??

Last post by jimmy101
Replies: 18
by mafia_mike » Sat Jun 21, 2008 10:10 pm
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Well, I'm not new to building combustion cannons, but i am new to building pneumatic cannons, after i built mine yesterday, i let the glue dry until...

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The problem with a sprinkler valves pressure rating is that it is probably the pressure where it starts to leak, not it's (catastrophic) failure...
18 Replies

8622 Views

Last post by jimmy101
Wed Jun 25, 2008 2:04 pm
WWR (Winter Wonder Rifle)

Last post by Mr.Sandman
Replies: 32
by origin unknown » Mon Aug 13, 2007 7:32 pm
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Well... it has been a long time since I have posted any spudguns. Here is my wonderful new Winter Wonder Rifle. It has been designed to be shot...

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nice gun the only things i would do are make the fill valve face a different way,paint it camo, add a red dot scope, and try to rifle the barrel....
32 Replies

18931 Views

Last post by Mr.Sandman
Wed Jun 25, 2008 1:19 pm
Simple yet ghetto semi-auto design

Last post by Spud King
Replies: 5
by mister pointy » Thu Jun 19, 2008 10:12 pm

First post

Hello everyone.
I am new to this forum but i have some experience with spud guns.
This is my third gun, but my first pneumatic.

some specs: 3''...

Last post

Some constructive criticism:
You need to take the sprinkler valve off and re mount it just after the last elbow, before the barrel. This way there is...

5 Replies

4148 Views

Last post by Spud King
Wed Jun 25, 2008 8:32 am
1/4" magazine Qs

Last post by Carlman
Replies: 18
by Carlman » Mon Jun 23, 2008 3:44 am
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Hey guys,

i need to make a magazine (possibly hopper) that will hold bbs and when i fire my gun it needs to fire.

so basically a selector bolt or...

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right i have no idea where to buy a 1/4 compression T in WA lol

the only thing i found was a white plastic one for washing machines.
18 Replies

3118 Views

Last post by Carlman
Wed Jun 25, 2008 4:53 am
CO2 regulator questions

Last post by biggsauce
Replies: 15
by iisthemuffin » Wed Jun 18, 2008 10:48 am
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I was wondering where i would get one of these and for how much? I would be using it for my copper cannon that i am building. I would like to use a...

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palmers pursiut shop

look for the female stabilizer on their website. very compact, used it on the intimidator... wish i still had it...
15 Replies

4946 Views

Last post by biggsauce
Tue Jun 24, 2008 11:07 pm
Hammer Struck Beer Keg Valve...

Last post by THUNDERLORD
Replies: 12
by THUNDERLORD » Sat Jun 21, 2008 12:33 pm

First post

Last week on trash day I saw a Beer keg out at the curb.
I was remembering the first time I pushed the ball into the top and got sprayed in face with...

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Thanks for all the replies guys.

I got an idea how to mount the valve in a pipe for the chamber, but also cut the same pipe to contain the rest of...

12 Replies

4506 Views

Last post by THUNDERLORD
Tue Jun 24, 2008 10:51 am
pvc vs steel questions

Last post by Gippeto
Replies: 2
by airsofter135 » Mon Jun 23, 2008 11:16 pm

First post

Im building a pvc cannon, using a tank for compressed air with a pressure regulator. how would you connect your regulator to the rest of the cannon?...

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how would you connect your regulator to the rest of the cannon?
i guess the question is, how would one go about connecting the regulator with pvc or...

2 Replies

1553 Views

Last post by Gippeto
Tue Jun 24, 2008 12:01 am
Broken Bike Pump. Fixable?

Last post by Millon
Replies: 6
by Millon » Tue Jun 17, 2008 12:34 am

First post

I took a standard bike pump up to 110 psi to fire my pneumatic cannon. When I tried to use the pump again, it stopped working. Even when the pump...

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Thanks for the advice. I just went on a 3 month vacation, but I'll try your repair suggestions when I return and report back with the outcome.

6 Replies

2777 Views

Last post by Millon
Mon Jun 23, 2008 11:15 pm
Pre-Build Pneumatic Questions

Last post by DrowningTrout
Replies: 8
by DrowningTrout » Sun Jun 22, 2008 10:37 pm

First post

Hello, The main reason I joined these forums was to learn what I needed to know to build my Pneumatic Airsoft artillery cannon. I have been reading...

Last post

Really the only question Im stuck at right now is... the Valve. I want good distance, but at the same time I dont need over kill and would rather...

8 Replies

4234 Views

Last post by DrowningTrout
Mon Jun 23, 2008 8:53 pm
TShirt Lobber - My first cannon

Last post by mark.f
Replies: 11
by greene123 » Sun Jun 22, 2008 2:41 pm

First post

This is my first cannon project and I wanted to take the opportunity to brag (of course) and to get some constructive criticism.

This cannon was...

Last post

you could make the barrel a bit longer, just to get some more muzzle velocity

Perhaps the short barrel is because he wants to just distribute...

11 Replies

4180 Views

Last post by mark.f
Mon Jun 23, 2008 8:48 pm
Pneumatic Cylinder/Piston Question

Last post by mark.f
Replies: 8
by SEAKING9006 » Mon Jun 23, 2008 7:05 pm

First post

What sizes of PVC are available at Home Depot or Lowes that will fit well enough into each other to use them to make a pneumatic piston? I don't mean...

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If you're looking for a good seal that will fit into pipe, do the obvious thing and use a test plug. They are used to seal off drain pipe and...

8 Replies

3682 Views

Last post by mark.f
Mon Jun 23, 2008 8:20 pm
Finding volume

Last post by DYI
Replies: 11
by no-limit » Mon Jun 23, 2008 1:07 pm

First post

I was told this is the formula for finding cylinder volume. pi*r*r*length but these calculations don't make sense.

1 by 60 = 47.12
2 by 30 = 94.24...

Last post

Circle area is pi*r 2
Cylinder volume is pi*r 2 *length

11 Replies

4001 Views

Last post by DYI
Mon Jun 23, 2008 6:37 pm
Getting serious.

Last post by Hard 2 Hit
Replies: 15
by Hard 2 Hit » Sat Jun 21, 2008 2:32 am
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I have so far built 2 air guns and both of them are pretty basic , the first one is just a fizzy drink bottle attached to a pvc pipe with a ball...

Last post

Thanks jack, you've been a great help.
15 Replies

2660 Views

Last post by Hard 2 Hit
Mon Jun 23, 2008 4:59 pm
Opinion on coaxail mortar

Last post by DYI
Replies: 5
by Sparow89 » Sun Jun 22, 2008 4:19 pm

First post

Hey everyone this is my first post. I am not new to the spudding community, but I have only built one air cannon prior to my planned project.

I...

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The efficiency of my designs tends to hover around 25-30%, not great, but decent, and the power is more than enough to placate my worries about that...

5 Replies

1716 Views

Last post by DYI
Mon Jun 23, 2008 3:28 pm
Need some quick advice before i get going today

Last post by mafia_mike
Replies: 12
by mafia_mike » Mon Jun 23, 2008 11:03 am

First post

Alright, I've gotten my first pneumatic cannon up and running, ive got my potatoes (other random ammo)...only problem though is that i think m y C:B...

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yea well, the chamber's been cut in half...too late now :D .... im just waiting for the solvent to dry so i can test it

12 Replies

4349 Views

Last post by mafia_mike
Mon Jun 23, 2008 2:52 pm
piston questions

Last post by jackssmirkingrevenge
Replies: 5
by jr » Mon Jun 23, 2008 1:18 am

First post

How far will the piston travel once the pilot is dumped?

and at what point of travel is the majority of the psi gone from the chamber?

I'm an...

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For the record, your piston only needs to travel between 25 to 50% of the barrel diameter for maximum efficiency.

Here's some theory for you to...

5 Replies

1480 Views

Last post by jackssmirkingrevenge
Mon Jun 23, 2008 1:40 am
Quick Connect Question

Last post by n-strike
Replies: 20
by n-strike » Mon Jun 23, 2008 12:27 am
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This might be a stupid question, but when you put air into these , does the air come back out, or is it kinda like a schrader valve and once air goes...

Last post

Hahaha! That sounded more like...nevermind. lol
20 Replies

5833 Views

Last post by n-strike
Mon Jun 23, 2008 1:27 am
The Recon Ops Terminator.

Last post by )DEMON(
Replies: 30
by )DEMON( » Thu Jun 12, 2008 9:57 am
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Introducing the Recon Ops Terminator.

This is a launcher that I designed for my paintball team. It fires a cluster of paintaballs at around...

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just use a small barrel, not any larger then the porting.
Or build a larger valve with a larger porting to fire a large barrel at full power.

Yep,...
30 Replies

12707 Views

Last post by )DEMON(
Sun Jun 22, 2008 3:25 pm
For The Aussie Spudder! - Extreme Poly Pipe

Last post by Mitchza89
Replies: 5
by Mitchza89 » Sat Jun 21, 2008 6:57 am

First post

G'day,

I'm currently making a new co-axial bb repeater at the moment. I needed to come up with something very strong, threaded, smooth and very...

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It's too tight of a fit. I had to get the pipe in with a rubber mallet :D

5 Replies

1168 Views

Last post by Mitchza89
Sat Jun 21, 2008 6:16 pm
air fill system and piston sealing

Last post by spud yeti
Replies: 3
by uncomplientspud » Fri Jun 20, 2008 10:47 am

First post

Hey guys

Going to get my new cannon built this weekend. Found all my new pipe i will need.

Only questions i have are:

What is a reliable way to...

Last post

to fill the chamber it depends on what you have.
A bike pump: pump
Compressor: quick connect
Your lungs: quick connect :D

3 Replies

2186 Views

Last post by spud yeti
Sat Jun 21, 2008 1:28 pm
Valveless ? Pneumatic

Last post by Atlantis
Replies: 19
by Spuddin » Tue Jun 10, 2008 7:58 pm
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I got this idea from hotwired. so i drew a quick pic to see if u guys think it will work. should be cheap enough to make. the only special item would...

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I know this topic is slightly old but I decided to go ahead and build a prototype of this design. I made it out of a 1.5 by 3/4 bushing, the neck of...
19 Replies

11379 Views

Last post by Atlantis
Fri Jun 20, 2008 6:07 pm
pre-loaded shell launcher

Last post by blind909
Replies: 7
by Imortal87 » Thu Jun 12, 2008 10:22 pm

First post

The beast is now off the chain!

Granted it needs a coat of paint yet but it works like a dream. It has a basic M203 launcher loading sleeve that...

Last post

It is a shrader.

7 Replies

4561 Views

Last post by blind909
Fri Jun 20, 2008 1:54 pm

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