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

1207290 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

606722 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

859247 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

1022540 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

393378 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

100393 Views

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

Topics

simple blowgun and handpump gun

Last post by john bunsenburner
Replies: 6
by john bunsenburner » Sat Mar 07, 2009 4:39 pm

First post

Well a week or so ago my brother and I were very, very bored and so i decided to make thinks a little more intresting with this 10min gun. I used the...

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Update(well kind of):

While using the gun today i managed to blow the epoxy and part of the pump its self of. i found a shock pump and will use one...

6 Replies

2509 Views

Last post by john bunsenburner
Sun Mar 08, 2009 9:35 am
Piston Filling/Trigger all in one, maybe...

Last post by sgort87
Replies: 4
by SpudsMcGee » Fri Mar 06, 2009 9:40 pm

First post

Oakey Dokey Artichokey,
I'm gonna start building my first piston gun after I get all my info right. It is probably going to be a paintball shooter,...

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As long as the equalization backflow through the piston is small, my 3-way will work very well.

4 Replies

1528 Views

Last post by sgort87
Sat Mar 07, 2009 7:21 pm
Wich gas use?

Last post by Lentamentalisk
Replies: 24
by Demon » Sat Mar 07, 2009 11:25 am
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I want to make a paintball gun with an compressed gaz bottle to give air power, but what gas use? (they all cost 5 $ for 14 oz)

-Propane

-Mapp...

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practically, HPA doesn't vary with pressure. A drop in temperature from room temp to freezing will decrease the pressure by ~7%, where as with...
24 Replies

6001 Views

Last post by Lentamentalisk
Sat Mar 07, 2009 2:48 pm
Multiple Shot Cannon

Last post by Demon
Replies: 3
by splttingatms » Thu Feb 26, 2009 10:24 pm

First post

Hello fellow makers,
I just built a t-shirt cannon using a design from Make: Magazine for my school pep assemblies. I'm trying to come up with a...

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Dont make this, the instant come of air will open the sprinkler valve. I tryed this and it did'nt worked cause of that.

3 Replies

1716 Views

Last post by Demon
Sat Mar 07, 2009 11:17 am
A simple/quick over-under pneumatic.

Last post by psycix
Replies: 1
by pharmboy » Sat Mar 07, 2009 12:14 am

First post

A simple over/under pneumatic. Modded 3/4 sprinkler valve, 24 x2 chamber, 36 /2 barrel, quick-connect filling and another T-stock, which I'm a fan...

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That looks like a clean build. Good job. I'd like to see it after you've painted it.

Im glad you said you weren't going for power, because some...

1 Replies

2364 Views

Last post by psycix
Sat Mar 07, 2009 10:54 am
a few propane questions

Last post by cannon monkey
Replies: 25
by cannon monkey » Mon Mar 02, 2009 12:36 pm
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The small tanks use for mini grills .
The ones I see being used on combustions.
how can I pump air into them.
I want to use it to air clean paint out...

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never mind i got somthing else other than a propane tank here pics of wat i have ( i going use a bigger tank soon i get the money )
not sure if i...
25 Replies

7661 Views

Last post by cannon monkey
Sat Mar 07, 2009 10:31 am
Ideas for piston

Last post by psycix
Replies: 19
by jmeyer1022 » Wed Mar 04, 2009 4:44 pm
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My frustration is growing. I've built at least 5+ pistons ranging from wood to 1 1/4 coupler to pill bottles. So far the pill bottle was the best so...

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Any pictures of the piston and the fit in the pipe?
Maybe you should look for something that fits closer to the 2 pipe then that coupling. Try...
19 Replies

3911 Views

Last post by psycix
Sat Mar 07, 2009 10:30 am
sniper marble gun [updated]

Last post by psycix
Replies: 28
by sniper hero » Wed Jan 21, 2009 7:08 am
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hi
this is the latest gun I made :D
I still need to buy a pressure hose but that won't be a problem
I did some test shots and it shoots very good...

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Jack check je e-mail maar. :D
28 Replies

9432 Views

Last post by psycix
Sat Mar 07, 2009 10:27 am
Reducing pilot volume and piston size

Last post by Ragnarok
Replies: 17
by Biopyro » Thu Mar 05, 2009 9:59 am
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I always thought that the barrel should stop at the point circled in green for maximum flow, but perhaps I was wrong. If it moves back to where it is...

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A simple way of doing it would be to use three discs on the bolt, so there are always two supported by the pilot volume walls. It works fine when I...
17 Replies

7466 Views

Last post by Ragnarok
Sat Mar 07, 2009 8:19 am
25mm Breech Loaded Copper Cannon

Last post by SubsonicSpud
Replies: 8
by SubsonicSpud » Wed Mar 04, 2009 5:35 am

First post

G'day Everybody

Well i have finally gotten around to posting up one of my cannons. It is the second copper gun I have made, the first being a half...

Last post

Great cannon.
How many shots do you get out of the CO2 Tank at 360 psi?

I have not actually counted how many fills I get out of the tank yet. I...

8 Replies

5615 Views

Last post by SubsonicSpud
Sat Mar 07, 2009 2:47 am
trasher

Last post by Lentamentalisk
Replies: 6
by tape fist » Fri Mar 06, 2009 12:59 am

First post

First the reason behind the name and then the spec`s.I have been planing on building a piston valve for my next cannon for about a week and when i...

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Also, if you fill the suppressor with steel wool you will get some improvement. Mainly for combustions, to cool the gases.
Does work like baffles,...

6 Replies

2664 Views

Last post by Lentamentalisk
Sat Mar 07, 2009 2:32 am
Interesting valve

Last post by Ragnarok
Replies: 23
by D_Hall » Thu Mar 05, 2009 11:42 pm
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Just took delivery of a 1.5 Asco QEV. I'm liking it. Cv = 50. Best part? Right off the shelf it has a pilot valve built into it. That is to say......

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Grams? I don't think it's 1.3 milligrams per liter.
You're right, air is about 1.3 kg per cubic metre, and hence 1.3 grams per litre.
23 Replies

13348 Views

Last post by Ragnarok
Fri Mar 06, 2009 8:27 pm
Baseballs

Last post by jeepkahn
Replies: 6
by Batmaker » Wed Mar 04, 2009 9:46 pm

First post

I need to build an air cannon capable of firing baseballs at up to 170 MPH for the purposes of testing wood bats. (170 is combination of pitch speed...

Last post

Or you may want to consider commisioning one of the sponsors to build a cannon to the specs you require... I'm sure they'll be happy to work with you...

6 Replies

2218 Views

Last post by jeepkahn
Thu Mar 05, 2009 9:16 am
Blowgun PSI rating

Last post by maggotman
Replies: 19
by Team PSU » Mon Feb 23, 2009 4:53 pm
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Hi guys,
I will be adding a blowgun to our sprinkler valve. On the side of the blowgun available it says Safety Blow Gun - 30psi max. The ones...

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ive used a blowgun that sad 30psi max at 900psi no problems bit harder to actuate tho.
19 Replies

7796 Views

Last post by maggotman
Thu Mar 05, 2009 6:03 am
My first piston cannon

Last post by jon_89
Replies: 12
by pharmboy » Wed Feb 25, 2009 10:26 pm

First post

I finally finished it up today. Specs are as follows

valve - 2 Tee w/ 1.25 porting, piloted by 3/4 sprinkler valve, pneumatically actuated.
Chamber...

Last post

well tommorow i will give it ago.

12 Replies

4161 Views

Last post by jon_89
Thu Mar 05, 2009 1:24 am
ghetto gun

Last post by TwitchTheAussie
Replies: 12
by jook13 » Fri Mar 21, 2008 12:20 am

First post

This may not be the most ghetto gun on this site, but you have to admit it is pretty ghetto.

It is made of a coke bottle for the chamber, a pringles...

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I feel like Im about to lose another ghetto award I gained ages ago :P . You are worthy of a ghetto title for the fact that is awesome

12 Replies

6175 Views

Last post by TwitchTheAussie
Thu Mar 05, 2009 1:14 am
Waterpolo machinegun

Last post by rp181
Replies: 11
by limbeh » Tue Mar 03, 2009 10:48 am

First post

One of the coaches in my school asked if it was possible to come up with this:

Something that can fire waterpolo balls from a hopper magazine at a...

Last post

a pneumatic motor is a option:

11 Replies

7334 Views

Last post by rp181
Wed Mar 04, 2009 10:31 pm
CO2 regulator

Last post by daberno123
Replies: 13
by trigun » Sun Feb 22, 2009 12:35 pm

First post

Well I was bored and looking around looking at this site and saw this > This looks like a homemade CO2 regulator to me maybe im wrong.

Last post

Wow... A faulty instruction that causes it to blow up. How safe.

Seriously, invest in a Palmer's Reg and you won't be disappointed.

13 Replies

4435 Views

Last post by daberno123
Wed Mar 04, 2009 7:22 pm
Paint Ball Land-Mine

Last post by Hubb
Replies: 14
by STHORNE » Mon May 26, 2008 10:52 pm

First post

STHORNE's Paint Ball Land-Mine

Information:
I decided to make a pneumatic paintball mine actuated by a sprinkler valve. It works fairly simple;...

Last post

The pop off valves are probably going to be too stiff for this purpose. The string will surely break before the popoff opens. Then, if it does manage...

14 Replies

7383 Views

Last post by Hubb
Wed Mar 04, 2009 8:30 am
DD1Wood.... Daly's Daddy #1 wood

Last post by rna_duelers
Replies: 11
by jeepkahn » Sat Feb 28, 2009 4:49 pm

First post

I figured since it is a GB gun, might as well use a Golf referance to name it...

The only thing left is to paint the tripod and put a Ping sticker...

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Nice build,Love large coax.I'm with jack on this *cough cough* damage pics.

I've currently got a dodgy light socket in my room and it won't allow a...

11 Replies

2810 Views

Last post by rna_duelers
Wed Mar 04, 2009 4:35 am
Portable Pressure Tanks/ On-site Refilling

Last post by ramses
Replies: 13
by Mrcrouse1 » Mon Mar 02, 2009 2:54 pm

First post

What would you guys recomend for using to refill a 3 2' chamber to about 40-50psi in the middle of nowhere. Would a small portable aircompressor or...

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you could also build a pump. If my numbers are correct, you could pump your chamber to 50psi in 12 strokes with a pump with the bore of 2 , and a 20...

13 Replies

3578 Views

Last post by ramses
Tue Mar 03, 2009 3:09 pm
Valve for firing water?

Last post by psycix
Replies: 21
by Lokoyo » Sun Mar 01, 2009 3:51 pm
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What would work better on firing water?

Ball Valve or Mod Sprinkler Valve?

How about on firing a water balloon?

Ball Valve or Mod Sprinkler...

Last post

which is why you want to minimize turbulence and have a conical shaped nozzle of the right diameter.
I can machine stuff :)

Another thing if...
21 Replies

5096 Views

Last post by psycix
Tue Mar 03, 2009 10:18 am
My mini mod gun...

Last post by jeepkahn
Replies: 3
by jeepkahn » Sat Feb 28, 2009 8:01 pm

First post

It's basically a parts gun, and YES the blowgun adapter is ghetto, but with a chamber this small, it's not a big issue...

It's a 1.5 x10 chamber...

Last post

I've run this up to 180psi... Sound's like a .22 firing the darts, and a 9mm when firing masrbles/bearings from the 3/4 barrel...

3 Replies

1442 Views

Last post by jeepkahn
Mon Mar 02, 2009 4:29 pm
Air Holland: Preview

Last post by psycix
Replies: 18
by Brian the brain » Sat Feb 28, 2009 2:55 pm
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Ever wondered what a 4 porter looks like?

Built by Sam Tex, a.k.a, my brother:

6 reservoir, 6 Tee, 4 barrel

43 liter reservoir, all PN 16 Pressure...

Last post

And again, I am just so happy to live in holland. :D
18 Replies

6151 Views

Last post by psycix
Mon Mar 02, 2009 3:33 pm
beastly beast

Last post by ckman
Replies: 19
by ckman » Sat Feb 28, 2009 9:23 pm
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hey guys this is my gun.

valve:3/4 qev
chamber:3 feet of 3/4 type M copper.
pilot:1/4 ball valve
fill valve:male quick connect
pressure:100-300 psi...

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Ok sweet im glad to be hearing that from you. oh and the barrel is 4 feet of 1/2 type m copper. Oh and do you think i should add a larger chamber?
19 Replies

7835 Views

Last post by ckman
Mon Mar 02, 2009 3:27 pm

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