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

895916 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

435511 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

368115 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

613112 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

326516 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

77657 Views

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

Topics

Pressure gauge install

Last post by xboxteen01
Replies: 9
by xboxteen01 » Sun Jan 27, 2008 1:35 am

First post

I searched far and wide for the answer to this but came up empty handed, so here goes. I have a 1/4 NPT pressure gauge for my pneumatic cannon. I...

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alright thanks for the help guys

9 Replies

3994 Views

Last post by xboxteen01
Sun Jan 27, 2008 7:40 pm
what is better for chamber ?

Last post by SpudFarm
Replies: 11
by nightshot » Sun Jan 27, 2008 9:32 am

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i´m going to make a pneumatic marble or bb gun, but, i dont know what is the better chamber, a pvc pipe or a 500ml cola bottle ...

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try the bottle at first if it is the right thing for you use the same barrel and valve and upgrade to a pvc or steel chamber. i would go with steel...

11 Replies

4373 Views

Last post by SpudFarm
Sun Jan 27, 2008 2:52 pm
Pnuematic Delay Mine

Last post by origin unknown
Replies: 11
by elitesniper » Fri Jan 18, 2008 8:53 pm

First post

Hey guys just fished my nifty little project yea i got permisson from pvc arsenal 17 to use this design but i tweaked it just a bit this has a 3/4...

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I made one of those, but I got tired of using it and ended up drilling through the endcap on the inside to convert it to a fairly powerful and...

11 Replies

3782 Views

Last post by origin unknown
Sun Jan 27, 2008 1:39 pm
C/B Ratio and PSI questions

Last post by Gippeto
Replies: 10
by BrianMigs » Sat Jan 26, 2008 2:43 pm

First post

I tried to search for these topics but couldn't find anything, or I just am searching the wrong keywords.

I finished my first potato gun last...

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you'll need a half inch drill bit for a 1/4 barbed hose connector.

The correct drill size for 1/4 NPT is 7/16 not 1/2

10 Replies

2763 Views

Last post by Gippeto
Sun Jan 27, 2008 9:21 am
Simple Pneumatic

Last post by PVC+ME=Dangerous
Replies: 7
by PVC+ME=Dangerous » Sat Jan 26, 2008 10:40 pm

First post

This is one of the coolest cannons i have ever built, it is a simple pnematic with an infrared 180x scope on the top that is really kick ass.

It is...

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Ford gt man, the 8 foot long copper cannon was about $60 to make and how did i lose it?

Well it was a three piece breakdown gun, you can take the...

7 Replies

1971 Views

Last post by PVC+ME=Dangerous
Sun Jan 27, 2008 12:33 am
MMC-2'' Piston Cannon

Last post by elitesniper
Replies: 18
by elitesniper » Fri Jan 25, 2008 10:19 pm
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This is the Monster Muncher Cannon. It has housed in a 2'' piston and has a1.5'' porting, it is serviceable through the back threaded plug and...

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thanks i just need to find that gb barrel at somehardwarestore :x
18 Replies

5117 Views

Last post by elitesniper
Sat Jan 26, 2008 11:54 pm
Pressure Gauge

Last post by Novacastrian
Replies: 3
by nabu92 » Sat Jan 26, 2008 8:53 pm

First post

Hey guys, I think my pressure gauge is broken.. The pointer is supposed to be at the 0 mark where the metal pin is, but for some reason, it is below...

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Have a go, i have found that they can indeed be fixed if there is no terminal damage.

3 Replies

1209 Views

Last post by Novacastrian
Sat Jan 26, 2008 10:06 pm
The Judge’s Auto-Valve idea.

Last post by judgment_arms
Replies: 8
by judgment_arms » Sat Jan 26, 2008 12:41 pm

First post

After working on this for better than two years now I think I’ve finally got something.

Ladies, gentlemen, and all the rest, I present to you the...

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Looks to me that having the piston cut off flow wouldn’t do any good ‘cause once the air starts to bleed the valve would still close, opening he air...

8 Replies

1435 Views

Last post by judgment_arms
Sat Jan 26, 2008 2:20 pm
dwv....

Last post by judgment_arms
Replies: 7
by nabu92 » Fri Jan 25, 2008 10:50 pm

First post

Hey guys I just finished building my first pneumatic...just waitin for it to dry.I was reading that dmw fittings are dangerous and all of my joints...

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I like the idea of proofing, only thing is if you crack the pipe, but not blow it, you’ve just defeated the purpose.
Plus going to 60 to proof it for...

7 Replies

2098 Views

Last post by judgment_arms
Sat Jan 26, 2008 11:21 am
Slider Collapseable

Last post by bigbob12345
Replies: 4
by quiggly17 » Sat Jan 26, 2008 7:35 am

First post

this is my new work in progress i call it the slider the chamber collapses in the barrel like a m72a1 law

the gun collapsed

the gun extended...

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that is awsome how much power does it get and got any specs

Edit: your chamber pipe is dwv and should not be used above 60psi

4 Replies

1526 Views

Last post by bigbob12345
Sat Jan 26, 2008 9:52 am
silencers

Last post by POLAND_SPUD
Replies: 25
by POLAND_SPUD » Sun Jan 20, 2008 5:04 pm
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I am currently building a silencer for my QEV cannon (it isn't semi yet, it seems that it would take me some time to make several upgrades on this...

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It doesn't silence the gun completely but it makes the BANG at 300 psi more quiet... it is more like a normal silencer at lower pressures.....

well...
25 Replies

5074 Views

Last post by POLAND_SPUD
Sat Jan 26, 2008 9:28 am
Sweated Copper Pressures

Last post by bigbob12345
Replies: 15
by chartreusesnot » Tue Jan 22, 2008 11:24 pm
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After seeing the S400, I thought I have to make a Sniper and so I have been looking around at copper rifles, and it seems like they can hold pretty...

Last post

and how might I do this safely

Search there are lots of threads about this
15 Replies

5367 Views

Last post by bigbob12345
Sat Jan 26, 2008 12:11 am
Peanut Butter Piston Questions

Last post by kablooie
Replies: 5
by kablooie » Fri Jan 25, 2008 8:15 pm

First post

I am currently working on a 3 piston cannon, and found out that a skippy peanut butter jar fits quite nicely into 3 pipe, with only about 1/16 of an...

Last post

Okay, thanks guys. Expanding foam it is! Now to figure out a bumper...

5 Replies

1238 Views

Last post by kablooie
Fri Jan 25, 2008 8:36 pm
Copper pipe size

Last post by dave1
Replies: 2
by dave1 » Thu Jan 24, 2008 10:03 am

First post

I have a problem finding a short piece of tubing/pipe/whatever to fit inside type L copper tube. I am building a 1/2 piston valve for relieving a 2...

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Thanks. I've found the perfect tube to fit inside that L type copper. It's a short 1/4 NPT brass nipple. I was able to chuck it up in a 1/2 chuck and...

2 Replies

1279 Views

Last post by dave1
Fri Jan 25, 2008 12:42 pm
Got a cool name for a cannon?

Last post by Isomer
Replies: 16
by brogdenlaxmiddie » Wed Jan 23, 2008 8:15 pm
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Hey everyone! I'm about to make the jump on finally putting my big pneumatic together and I then relized, I DON'T HAVE A NAME FOR IT!!!! So, in all...

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Could
Anniliate
Nasty
Necros
Of
Narnia
or cannon
This
Isn't
Worth
Your
Time
or tiwyt hmm?-just kidding
16 Replies

5114 Views

Last post by Isomer
Fri Jan 25, 2008 12:17 am
Almost finished Piston cannon

Last post by bigbob12345
Replies: 8
by bigbob12345 » Mon Jan 21, 2008 6:41 pm

First post

Ive been working at this for a while and Im finnally almost done.Today I went to lowes to get some 1.5in sdr21 and got a ten foot stick for 4 bucks.I...

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Yea most of them were but the ones under neath all the dirty ones are pretty clean as you can tell by the pictures of the barrel.
Edit:Can anyone do...

8 Replies

1256 Views

Last post by bigbob12345
Thu Jan 24, 2008 9:29 pm
C/B ratios and diminishing returns

Last post by Hotwired
Replies: 17
by dewey-1 » Tue Jan 22, 2008 3:02 pm
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--

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Ah springs!

I thought of posting the spring analogy before but I was derailed by some other formulas and forgot, clides already done one but dammit...
17 Replies

5646 Views

Last post by Hotwired
Thu Jan 24, 2008 8:02 pm
Tilt valve ??

Last post by DVLCHLD
Replies: 5
by DVLCHLD » Mon Jan 21, 2008 8:15 pm

First post

Say you have a sprinkler valve that you want to mod for pneumatic operation. Istead of using a 1/4 ball valve or a blow nozzle, could you use a...

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I tried the tilt valve today. It doesn't let enough air out fast enough to allow the sprinkler valve to open. So scratch that idea. lol.

5 Replies

2581 Views

Last post by DVLCHLD
Thu Jan 24, 2008 7:02 pm
Pneumatic Rifle

Last post by DYI
Replies: 6
by niglch » Wed Jan 23, 2008 9:55 pm

First post

My friend and I are planning on building a pneumatic sniper rifle. We are thinking of using a 3/4 barrel with a modified sprinkler valve. I have done...

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Atmospheric pressure combustions (i.e. not hybrids) can produce and absolute maximum of 129 psig in the chamber post combustion, with a perfect mix...

6 Replies

1941 Views

Last post by DYI
Thu Jan 24, 2008 6:18 pm
Homeade Super Soaker

Last post by Panzerfaust
Replies: 14
by miskaman » Mon Jan 21, 2008 6:51 pm

First post

I'm making a homeade super soaker to use next summer with the air pressure coming from a bike pump and using one or two 2-liter bottles for holding...

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Noob of Noobs
Dude, I loaded up this cannon with a 5 foot chamber and barrel (1.5 chamber and 1.25 barrel) with water, and when I shot it, it was...

14 Replies

6329 Views

Last post by Panzerfaust
Thu Jan 24, 2008 2:20 pm
first pneumatic cannon

Last post by psycix
Replies: 11
by brad1780 » Wed Jan 23, 2008 9:35 pm

First post

this is my first attempt at a pneumatic cannon. it has a 1 sch 40 by 4 foot long barrel. it uses a 1 lawn genie sprinkler valve with a 2 sch 40 by 2...

Last post

Very similar to a gun I posted on here recently the chamber is just a little smaller
Good job all together but get some epoxy

When I click your...

11 Replies

2011 Views

Last post by psycix
Thu Jan 24, 2008 5:36 am
New and the last gun design.

Last post by ALIHISGREAT
Replies: 17
by Mitchza89 » Sun Jan 20, 2008 1:59 am
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Well this is my latest design for this will be one of my last guns. It's based off the S400 and the SSS that Chaos previously built. I hate copying...

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^ yes a flachette or dart would have the higest cross sectional density and better penetration unless its super light... but the ball bearing would...
17 Replies

4831 Views

Last post by ALIHISGREAT
Thu Jan 24, 2008 2:33 am
Propane as a propellant (not combustion)

Last post by DR
Replies: 10
by Zippster » Tue Jan 22, 2008 2:12 pm

First post

I was pondering portable gas options the other day, and it struck me that theres a propane tank sitting right there in the back yard. I know gas...

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It's been almost a year, since I made (yet an other) propane-powered pneumatic. Personally, I think it works great, unless the temperature
outside...

10 Replies

4914 Views

Last post by DR
Wed Jan 23, 2008 9:06 pm
Orbits valve mod

Last post by DVLCHLD
Replies: 27
by DVLCHLD » Thu Jan 03, 2008 12:48 am
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I have an Orbit WaterMaster 1 sprinkler valve, model # 57461. The solenoid screws into the centter of the cap. I want to remove the solenoid and...

Last post

I'm making a smaller air chamber for the land mine. I want it a little as possible. Once I get it done I'll try to post some pics.
27 Replies

7950 Views

Last post by DVLCHLD
Wed Jan 23, 2008 8:00 pm
Looking for help on importing valve design into GGDT

Last post by Hotwired
Replies: 9
by Solar » Tue Jan 22, 2008 7:52 am

First post

Here are the basics.

Last post

Oh I finally get what you're getting at.

The barrel sealer needs a much larger pressure drop on the pilot side before the piston moves because of...

9 Replies

2266 Views

Last post by Hotwired
Wed Jan 23, 2008 7:17 pm

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