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

1201755 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

604972 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

857920 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

1020928 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

392614 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

100079 Views

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

Topics

piston help

Last post by psycix
Replies: 11
by Model12 » Mon Dec 24, 2007 11:03 am

First post

I just finished my piston cannon and now that its done I have tried it and when you pump the pilot up when you start getting to any pressure air...

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I dont know up to what pressures you pump, but my piston gun leaks air UNTIL about 2 bar (30PSI)
The piston just hasnt got enough pressure on it yet...

11 Replies

3153 Views

Last post by psycix
Wed Dec 26, 2007 4:44 pm
1" piston wont pilot on blowgun.. WTF!?!?

Last post by c19o
Replies: 16
by c19o » Tue Dec 25, 2007 6:37 pm
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I've made 2 other valves exactly like this and they worked fine piloting off a modded blowgun... ( reason I cant use the other valves is because I...

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Thanks for the help guys. I noticed that the bolt is kinda too big. Lol speaking of half 1/2 ball valves I had one break totally in half when I...
16 Replies

4030 Views

Last post by c19o
Wed Dec 26, 2007 3:09 pm
Almost ready...

Last post by MrCrowley
Replies: 5
by Gunner » Tue Dec 25, 2007 9:58 am

First post

OK,Now my new copper piston valve cannon is ready and it has a blowgun as a pilot valve but it has a one problem. It works fine pressures
between...

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Don't worry a 1/2 ball valve wont waste any air, it will only increase performance.

5 Replies

1396 Views

Last post by MrCrowley
Wed Dec 26, 2007 2:56 pm
A new type of CO2 regulator?

Last post by PVC Arsenal 17
Replies: 7
by cwazy1 » Tue Dec 25, 2007 11:13 pm

First post

umm yeah so since i cant exactly reach 200psi with my current co2 regulator, im thinking of getting one of these so that i can do small bursts of...

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no no im talking about the brass fitting that connects to the co2 bulk tank to the first ball valve.

This?

7 Replies

1988 Views

Last post by PVC Arsenal 17
Wed Dec 26, 2007 2:43 pm
CO2 flow regulator??

Last post by octane89
Replies: 11
by cwazy1 » Tue Dec 25, 2007 3:32 am

First post

So my co2 reulator only goes until 130psi, and im looking for 200psi. so does anyone kmnow of a cheap CO2 flow regulator that only regulates flow and...

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Im talking about usa.

11 Replies

4163 Views

Last post by octane89
Wed Dec 26, 2007 1:58 pm
Black Hole... My first Cannon

Last post by tansit234
Replies: 32
by CuddlyBurrito » Sun Dec 23, 2007 9:19 pm
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So here is my first cannon.

Specs:

Barrel: 2' of 2

Chamber: 2' of 3

Valve: 1 Modded Sprinkler valve

thinking about painting it flat black.....

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Yeah DWV scares me to no end, I've had a beat up PW tee fail. 2 inch tank tee at 90 psi. I was behind a garage door turned blast shield for that test...
32 Replies

10515 Views

Last post by tansit234
Tue Dec 25, 2007 4:43 am
Ball valves and long barrels

Last post by Pilgrimman
Replies: 12
by Pilgrimman » Sun Dec 23, 2007 7:38 pm

First post

I have a 1 1/2 PVC ball valve for my HUGE golfball gun. The barrel is approximately 10-13 feet long. I chose the ball valve because of the massive...

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@ Mr.Crowley I saw Van Halen in Portland, OR. They were unbelievable! Here's to hoping they go to NZ sometime!

Thanks for the help, everyone! clide,...

12 Replies

2490 Views

Last post by Pilgrimman
Tue Dec 25, 2007 1:18 am
First Piston Cannon

Last post by IlovePVC
Replies: 15
by IlovePVC » Thu Dec 20, 2007 11:12 pm
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I attempted to build a Piston cannon twice before, with no success. After some more time and researching I decided to give it one more try. This...

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Sorry about that guys. I don't actually know what happened but I fixed it. :)
15 Replies

6113 Views

Last post by IlovePVC
Mon Dec 24, 2007 6:44 pm
Klog Killa

Last post by jackssmirkingrevenge
Replies: 17
by Hubb » Mon Dec 24, 2007 7:41 am
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Last week, I had a sick clog. I tried a plunger, Drano, Liquid Fire, a snake...everything except calling a plumber. I was starting to get...

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then i could make people visit naughty websites hehehe :read:

and get into trouble ;)
17 Replies

5382 Views

Last post by jackssmirkingrevenge
Mon Dec 24, 2007 2:21 pm
new co-axial piston with suppressor

Last post by jackssmirkingrevenge
Replies: 28
by jave101 » Thu Sep 14, 2006 3:14 am
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this is my new coaial piston gun with suppressor i made thie other day, the suppressor cancels out about half the sound of the gun. it need a paint...

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I think that holes in the outher casing of a silencer would help (ofcorz if the silencer is packed tightly with wool or simmilar material that would...
28 Replies

13366 Views

Last post by jackssmirkingrevenge
Mon Dec 24, 2007 12:42 pm
12 GPM......wtf?

Last post by Ragnarok
Replies: 23
by mopherman » Sat Dec 22, 2007 6:34 pm
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Alright, I'm thinking seriously about buying the washer gun at the top of this page . It says 12 gpm, but I have no idea what kind of flow that...

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But if it's rated for 4000 psi water, it should be able to take 2400 psi helium without leaking too horribly, right?
Helium is used industrially to...
23 Replies

4568 Views

Last post by Ragnarok
Mon Dec 24, 2007 6:26 am
Help with QEV valve, first time builder.

Last post by MaxuS
Replies: 3
by loaferz » Mon Dec 24, 2007 1:35 am

First post

So Im really excited about building my first pneumatic cannon, got all the parts together and thought I had everything working, but I'm running into...

Last post

As clide said:
Put on a check valve, its most likely that when you draw air into the pump on the upstroke that its lowering the pressure slightly...

3 Replies

1266 Views

Last post by MaxuS
Mon Dec 24, 2007 5:29 am
personal grenade launcher

Last post by BigGrib
Replies: 23
by quiggly17 » Fri Dec 14, 2007 8:10 pm
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this is my new cannon for paintball it launches homemade devices that produce smoke without fire or paintball shotgun loads its breeched loaded and...

Last post

looks ok to me, needs to be cleaned up a bit, nice 3/3 on the feet,
23 Replies

6740 Views

Last post by BigGrib
Mon Dec 24, 2007 12:30 am
I'm a n00b...

Last post by CuddlyBurrito
Replies: 21
by CuddlyBurrito » Thu Dec 20, 2007 7:30 pm
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Ok so i have been snooping around in these forums for a while now and i am now getting ready to build my first real cannon. It will be Pneumatic and...

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.....suddenly one of the endcaps on the chamber blasted off blowing through his porch railing. Not kool haha.

lol thats sounds bad.. i dont live...
21 Replies

5125 Views

Last post by CuddlyBurrito
Sun Dec 23, 2007 8:47 pm
Burst disc valve information?

Last post by potatoflinger
Replies: 15
by potatoflinger » Sat Dec 22, 2007 9:32 pm
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I'm sorry for this semi-noobish topic, but does anyone know (approximately) the flow coefficient of a .5 burst disc valve? I have searched multiple...

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Then probably more towards 60% since the gun is not going to have any curves. Thank you everyone for your help, it is much appreciated.
15 Replies

2608 Views

Last post by potatoflinger
Sun Dec 23, 2007 7:01 pm
Burst Disk Union?

Last post by noob of noobs
Replies: 3
by elitesniper » Sun Dec 23, 2007 5:04 pm

First post

Hey guys I was just thinking , well burst disk uses unions right, the purpose of the union is to clamp the bursting material in place right? well...

Last post

I'm pretty sure this has been done with cardboard on Advancedspuds.com

3 Replies

1455 Views

Last post by noob of noobs
Sun Dec 23, 2007 6:09 pm
1" Copper Pipe

Last post by DYI
Replies: 6
by us sniper » Sun Dec 23, 2007 2:22 am

First post

How high do you think that I could pressurize 1 copper pipe is I sheathed the whole chamber in 1 couplings? I believe to start the copper can go to...

Last post

Apart from that, copper tube has very large safety factors (~7), so you don't really need to worry about bursting any commonly available Type M...

6 Replies

1875 Views

Last post by DYI
Sun Dec 23, 2007 4:50 pm
What kind of epoxy

Last post by Ragnarok
Replies: 11
by Model12 » Sat Dec 22, 2007 5:20 pm

First post

What kind of epoxy would I want to use to glue a fill valve into place? I tried superglue and normal glue but it still leaks ( it was put on uneven)...

Last post

That remark was referring to how many people seem to think you can't attach a quick connect to anything but a compressor. People too dumb to put a...

11 Replies

2904 Views

Last post by Ragnarok
Sun Dec 23, 2007 10:38 am
help attaching a shrader vlave

Last post by Zippster
Replies: 19
by Lard Lad » Fri Dec 07, 2007 7:58 am
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I am a noob at this whole pneumatic canon thing so first off i have sucusfuly built a combusion canon and a bbmg but have yet to try to build a...

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I dont see what's so hard about this.
Most fittings save those exotic ones have inter-compatible threads, which is a godsend with all these gauges...
19 Replies

5964 Views

Last post by Zippster
Sat Dec 22, 2007 11:23 pm
new gun. new a little advice

Last post by Ragnarok
Replies: 11
by carter » Sat Dec 22, 2007 6:21 am

First post

hey dudes im building a new gun. thanks to Bunnings building a new store where i live i can finally get my hands on a sprinkler valve. but i wanted...

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and its bout time i made a cannon thats not ghetto.
I quite agree with MrC - since when has a single chambered launcher been a ghetto design?...

11 Replies

3614 Views

Last post by Ragnarok
Sat Dec 22, 2007 6:50 pm
pump up marble shoota

Last post by carter
Replies: 6
by dopeassmonkey » Sat Dec 22, 2007 10:13 am

First post

i was wanting to make a small gun that has a bike pump on board for shooten marbles has any1 else on here made something like that that i could get...

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i have thought about doing this but the main problem was th pressure i would get from it. i have used a hand held pump to pump up a 3'' by 9'''camber...

6 Replies

1638 Views

Last post by carter
Sat Dec 22, 2007 5:33 pm
Large Cannon Valve Ideas

Last post by MrCrowley
Replies: 31
by Zippster » Wed Dec 19, 2007 7:21 pm
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I was theorizing on making a really big WWII-esque spud-relocating artillery piece with HUGE, probably dual, chambers. The only valves I've used thus...

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Speaking of which, have you ever thought about making an animation of how your valve works for people who don't understand?

Doesn't have to be the...
31 Replies

8736 Views

Last post by MrCrowley
Sat Dec 22, 2007 4:54 am
Piston Failure Possibility?

Last post by MrCrowley
Replies: 15
by MrCrowley » Tue Dec 18, 2007 10:22 pm
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I'm sure most of you are familiar with my SGA golfball gun, if not, tough.

Anyway I can't seem to find 'PVC plugs' in NZ, and I hear they are alot...

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Well seeing as I couldn't have anything touch the side of the end cap as it has to be glued onto a piece of pipe, I just got a metal coupler and...
15 Replies

3653 Views

Last post by MrCrowley
Fri Dec 21, 2007 9:19 pm
Sprinkler valve problem

Last post by bigbob12345
Replies: 13
by bigbob12345 » Fri Dec 21, 2007 6:34 pm

First post

Well I built my first cannon powered by a sprinkler valve a couple of weeks ago and I modifyed the sprinkler valve. The first time I charged it up...

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Okay Ill do that

Edit:I have just put the whole thing underwater while pressurised and the only bubles I saw were coming out of the barrel

13 Replies

2633 Views

Last post by bigbob12345
Fri Dec 21, 2007 8:17 pm
valve questions

Last post by Strake
Replies: 13
by Strake » Thu Dec 20, 2007 6:45 am

First post

once again i got a few questions which i actually searched for but to no avail.

does a piston use more air than a modded sprinkler valve? because of...

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oh ok thats alright then ive designed another valve its like a piston but doesn't have a blowgun attached ive just got to get the parts and ill start...

13 Replies

3802 Views

Last post by Strake
Thu Dec 20, 2007 8:57 pm

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