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

1070515 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...

Last post

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

510380 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

606213 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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First post

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...

Last post

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

768348 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

358387 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

88200 Views

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

Topics

Using Unmodded sprinkler valve

Last post by shadowghost21
Replies: 9
by shadowghost21 » Sat Oct 21, 2006 5:40 pm

First post

I did a search but did not find what I was looking for. I just got a sprinkler valve. When I pump the chamber the air goes right though it. I dont...

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I just got back from the store and returned my old valve for a rain bird cp-100 I hear alot about them here on the forums so I figure its a good...

9 Replies

2917 Views

Last post by shadowghost21
Sat Oct 21, 2006 7:33 pm
Piston Block Broke My Pipe!

Last post by jrrdw
Replies: 5
by jrrdw » Fri Oct 20, 2006 4:59 pm

First post

Just like it says. I have 3, 1 1/2 X 10/32 screws holding my piston stop, (made of wood), my piston, (also wood) has hit it hard enough to hammer it...

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The strongest shot was about 40psi according to the gauge, i cut it in half this morning, and fished out all of the busted piston block pieces. After...

5 Replies

1988 Views

Last post by jrrdw
Sat Oct 21, 2006 5:39 pm
CO2 regulation with a ball valve.

Last post by THEMOST
Replies: 16
by THEMOST » Mon Oct 16, 2006 7:26 pm
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Would it work if I got a fancy metal ball valve and placed it between an air chamber and a CO2 tank and tried to slowly open it to regulate the...

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I think it can be anywhere from 800 to 3,000 psi depending on what you get but I think most ppl use 800-1500psi.
16 Replies

7322 Views

Last post by THEMOST
Sat Oct 21, 2006 4:27 pm
electrical conduit

Last post by tntlly
Replies: 4
by tntlly » Sat Oct 21, 2006 12:30 am

First post

I know it isn't pressure rated, but I bought a big piece of the 2 1/2 inch conduit for tennis balls, and I have a lot left over. I was just wondering...

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Thanks, I don't have any tennis balls yet to try it, but I'm guessing it's a tight fit when you don't sand it?

4 Replies

2343 Views

Last post by tntlly
Sat Oct 21, 2006 1:20 am
Where to buy CO2 Regulators?

Last post by sv490665
Replies: 3
by shadowghost21 » Mon Oct 16, 2006 8:22 pm

First post

Where can I buy a CO2 regulator and anything else I am going to need to make a CO2 powered cannon (small). And most importatly how much do they cost??

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What about those regulators they use for air compressors? would those hold up to 800 psi?

3 Replies

1696 Views

Last post by sv490665
Fri Oct 20, 2006 9:11 pm
big guy

Last post by beebs111
Replies: 5
by s18022 » Sun Oct 08, 2006 9:00 pm

First post

I just got started on this one. It is a 4 inch*5 foot airtank and a 2 inch barrel*7ft. barrel. it is going to be huge. but it needs a fast valve know...

Last post

you can always put one on yourself.......

5 Replies

2283 Views

Last post by beebs111
Fri Oct 20, 2006 7:09 pm
My first over under pneumatic.

Last post by Extrusion
Replies: 2
by Extrusion » Fri Oct 20, 2006 6:03 pm

First post

Well took me a week to build only because ace hardware is majorly over priced and im very pleased with it.

It shoot AA's perfectly and i never even...

Last post

the barrel was almost on them didnt wanna do a distance shot inside lol might miss and break something =p

2 Replies

1640 Views

Last post by Extrusion
Fri Oct 20, 2006 6:27 pm
Sprinkles on top...

Last post by THEMOST
Replies: 3
by Dr.Doom » Fri Oct 20, 2006 1:19 pm

First post

So from what I understand, a sprinkler valve is pretty much the store bought version of the Diaphram right?

Last post

That's correct.

3 Replies

1909 Views

Last post by THEMOST
Fri Oct 20, 2006 2:41 pm
CO2 temp.

Last post by THEMOST
Replies: 6
by THEMOST » Wed Oct 18, 2006 8:28 pm

First post

What is the temperature of CO2 at 800psi?

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I was aasking because I heard it could freeze and break the PVC at it's liquid state. One of my friends told me that it was about -300ºF. If I have a...

6 Replies

2178 Views

Last post by THEMOST
Fri Oct 20, 2006 2:40 pm
Is this design possible?

Last post by POS
Replies: 9
by Dr.Doom » Thu Oct 19, 2006 10:06 am

Well I was thinking last night of Pnematic guns and compactability, would a design in which the air tank was a sheath around the barrel be possible?...

9 Replies

3928 Views

Last post by POS
Fri Oct 20, 2006 5:57 am
Spazooka MK1

Last post by POS
Replies: 23
by killagorrila99 » Tue Oct 10, 2006 4:26 am
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Well I built this in hope of a simple, cheap gun. I was not dissapointed. Also burst disks have better performance than any other valve hence the...

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A two inch union will not increase performance,cause the airflow trough the barrel is only 1 . If the union is 2 or even 5 , it would't be a...
23 Replies

5412 Views

Last post by POS
Thu Oct 19, 2006 12:06 pm
Penu question

Last post by joannaardway
Replies: 7
by guy_with_a_gun » Mon Oct 16, 2006 9:40 pm

First post

i have a few pneumatic cannons atm, but i still cant answer this, does having the chamber not directly behind the valve make a noticible differnce in...

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I also picked up a bike track pump for about £15 in the UK, which will do 160 psi at a pinch.

8 bar (112-120 psi depending on exact make)...

7 Replies

2800 Views

Last post by joannaardway
Thu Oct 19, 2006 7:25 am
Pressure ratings

Last post by Hotwired
Replies: 6
by Tyro » Wed Oct 18, 2006 3:04 am

First post

I have a few questions about pressure ratings that might be simple to answer.

What are plastic Sprinkler valves rated to?

Does the BlowGun on a...

Last post

Metal solenoids cost a hell of a lot more. Add $200+ to your bill if you're having a brass one instead of a plastic one.

6 Replies

3328 Views

Last post by Hotwired
Thu Oct 19, 2006 3:52 am
My thoughts on a copper gun.

Last post by Hotwired
Replies: 5
by Deactivated 1 » Sun Oct 15, 2006 9:36 am

First post

I was just thinking about a copper gun designed around two main things: I'm not too keen on sweating joints, and I want it to be mountable in/on some...

Last post

The second method is drawing a large copper tube through increasingly smaller holes, stretching it and reducing its diameter until it's the correct...

5 Replies

4118 Views

Last post by Hotwired
Thu Oct 19, 2006 3:49 am
.:MHR:.

Last post by experament_u2
Replies: 10
by experament_u2 » Wed Oct 18, 2006 3:31 am

First post

MHR
this is my second pneumatic gun the marble hunting rifle or MHR for short.
it will shoots marbles and has a 6 shot magazine, unfortunatly the...

Last post

im not sure wat it was but i just found it in the shed and those bits were recycled from one of my old guns thats y they r looking a bit beat up

10 Replies

2893 Views

Last post by experament_u2
Thu Oct 19, 2006 12:25 am
Barrel holes

Last post by CS
Replies: 4
by THEMOST » Wed Oct 18, 2006 5:02 pm

First post

What is the use of having those fance holes on the end of a barrel? Does it help with the accuracy, speed, or silencing, or something?

Last post

In essence the process of drilling multiple holes near the muzzle is in attempt to replicate a Muzzle Break on a solid propellent based weapon....

4 Replies

2815 Views

Last post by CS
Wed Oct 18, 2006 7:51 pm
New valve design

Last post by MrCrowley
Replies: 13
by haulinick » Sat Oct 14, 2006 12:17 pm

First post

I got creative in class today, (something rare if I was doing what we were supposed to be doing. :shock: ) Anyway, I came up with this valve design....

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im gonna be short on money till december as im spending alot of money on fireworks as i stock up for the whole year.

13 Replies

3149 Views

Last post by MrCrowley
Wed Oct 18, 2006 12:09 am
12GA shotgun shells

Last post by judgment_arms
Replies: 2
by judgment_arms » Tue Oct 17, 2006 9:12 pm

First post

Hey all, I’m new here so forgive me if I state the obvious or sound dumb.
Ok, I’m working on a new idea and I just discovered that a 12GA shotgun...

Last post

that may work, but it would probably have vary pore performance.
what I was saying is you feed the air through the hole where the primer whent. i'm...

2 Replies

2035 Views

Last post by judgment_arms
Tue Oct 17, 2006 9:44 pm
Copper marble rifle

Last post by haulinick
Replies: 12
by haulinick » Sun Oct 15, 2006 8:06 pm

First post

Here is my new copper rifle. It is a coaxial style gun with a 1/2 barrell in a 1 chamber. it uses a 1/2 ball valve as a fill valve and also a pilot...

Last post

i only had 3 joints to solder so it took bout 20-30 minutes. Most of the time I was trying to get the 1/2 pipe centered so that the piston would work...

12 Replies

6998 Views

Last post by haulinick
Tue Oct 17, 2006 9:10 pm
any ideas for a 1 1/2 inch piston?

Last post by Infernal2
Replies: 5
by djt » Mon Oct 16, 2006 4:44 pm

First post

anyone have any ideas for a 1 1/2 piston? im looking to make a coaxil with a 1 1/2 inch chamber and a half inch barrell. just wondering if anyone had...

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I've had a hell of alot of success with using PVC sheet shower and bath liners as diaphragms. I think it's $5.50US/ft at Home Depot. It's very thin,...

5 Replies

2054 Views

Last post by Infernal2
Tue Oct 17, 2006 7:29 pm
Metal T, Barrel Sealing

Last post by Infernal2
Replies: 3
by Infernal2 » Mon Oct 16, 2006 9:16 pm

First post

I'm attemtping my first metal piston gun. Now, from my understanding of the barrel seal concept a sealing face close to the diameter of the barrel...

Last post

Well, this pain in the ass has gone through three piston incarnations. I can definetly say that sealing against the exhaust port is fricking stupid...

3 Replies

1718 Views

Last post by Infernal2
Tue Oct 17, 2006 7:26 pm
Coaxial/cold weather

Last post by Anon

by Anon » Tue Oct 17, 2006 7:09 pm

Ok after my first pneumatic cannon kind of disappointed but none the less it worked great. But now I want something more advanced than a simple ball...

0 Replies

2273 Views

Last post by Anon
Tue Oct 17, 2006 7:09 pm
My future pneumatic design (very new!!!!)

Last post by CpTn_lAw
Replies: 10
by CpTn_lAw » Wed Oct 11, 2006 4:28 pm

First post

Hey guys, i've been thinking about making the ultimate pneumatic, combining almost-all-copper parts, soldered together, bolt mechanism, chamber...

Last post

i plan on making this gun almost all copper, this includes the bolt...yes
Thx galfisk, i'll try the magnets!! yes, i'm definatley going for the 8mm...

10 Replies

3992 Views

Last post by CpTn_lAw
Tue Oct 17, 2006 8:46 am
Full auto pneumatic concept (with 3D renderings)

Last post by MrCrowley
Replies: 5
by jleemero » Mon Oct 16, 2006 6:49 pm

First post

Now...
Although it would be difficult,
I think anyone with some good robotics experience could do this.

Let me just explain it as simple as I can......

Last post

change the font to normal then ill try reading it again,i get lost after 3lines as i cant see a picture on the same page and the letters are soo huge.

5 Replies

3164 Views

Last post by MrCrowley
Mon Oct 16, 2006 11:18 pm
I need help on making a auto mabe semi auto airgun

Last post by Tyro
Replies: 4
by Phoenix75088 » Mon Oct 16, 2006 5:22 pm

First post

ok it needs to be simple cheap no air tanks or co2 powerful mabe small u think you know what i can do to make one

Last post

i think the first step would be Puncuation, then you can use grammar.
But make something simple first of all. Try something rly small and cheap, if...

4 Replies

10796 Views

Last post by Tyro
Mon Oct 16, 2006 9:34 pm

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