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

840738 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

417044 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

351761 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...

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

595969 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

317413 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

74304 Views

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

Topics

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

2143 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

1659 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

2249 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...

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

2 Replies

1487 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

1895 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?

Last post

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

2134 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

3906 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

5329 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

2760 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...

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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

2346 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...

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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

2808 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

2846 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

2699 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....

Last post

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

2997 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

1790 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...

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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

6404 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

2018 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...

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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

1651 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

2123 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

3887 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

3105 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

2847 Views

Last post by Tyro
Mon Oct 16, 2006 9:34 pm
Attaching 2" chamber to 1/2" nipple

Last post by Extrusion

by Extrusion » Mon Oct 16, 2006 7:05 pm

i went to and found a bushing that i think is the right part here is the product number 4880K172 could some one tell me if this is what i need to...

0 Replies

2100 Views

Last post by Extrusion
Mon Oct 16, 2006 7:05 pm
easy to make piston

Last post by pyromanic13
Replies: 6
by haulinick » Mon Oct 16, 2006 12:53 am

First post

I found some stuff at homedepot today called epoxy putty. There is many different kinds around the store included plumbing and all purpose. I just...

Last post

john, what was you avatar before?

6 Replies

2410 Views

Last post by pyromanic13
Mon Oct 16, 2006 6:59 pm
I've decided what to do with the 8"

Last post by pyromanic13
Replies: 31
by noname » Sat Aug 19, 2006 10:52 am
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This chunk of pipe shall be a coaxial! I just can't decide whether to make the barrel 4 or 2 , but it will be 20 feet long because that's how long...

Last post

I doubt a Nerf ball would be rigid enough to hold any signifigant(sp) ammount of pressure.

isn't the pressure equal on both sides just squishing...
31 Replies

9446 Views

Last post by pyromanic13
Mon Oct 16, 2006 6:54 pm

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