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...

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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

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...

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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

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

Cannon Question

Last post by POS
Replies: 2
by Stang_man67 » Tue Oct 24, 2006 3:37 pm

First post

Hello im new here and i was wondering how powerful the pneumatic cannons are. Im lookin for something to have fun with. I see one pneumatic cannon...

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You could try copper or metal pneumatics. They are far more powerfull due to the higher pressure they can have.

I have one build (my second and...

2 Replies

1384 Views

Last post by POS
Wed Oct 25, 2006 8:54 am
Easy Piston

Last post by Atlantis
Replies: 9
by Atlantis » Mon Oct 23, 2006 9:01 pm

First post

I found a way to make a piston that will work for any size pipe.

Push a grocery bag into the pipe, try and get the bag against the walls.
Fasten the...

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Cool, how much did that big of a bucket cost? I'll probably stick to tubes but all...corection...A LOT of power to ya, that much rubber, wow. Is...

9 Replies

3048 Views

Last post by Atlantis
Tue Oct 24, 2006 8:50 pm
lawn genie sprinkler valve

Last post by subterranean
Replies: 6
by subterranean » Mon Oct 23, 2006 6:06 pm

First post

has any one had success with lawn genie brand sprinkler valves? i havent built the entire cannon so im wondering if i can save a few bucks for this...

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so if i take the rod out i could drill my whole where it used to be?

6 Replies

2492 Views

Last post by subterranean
Tue Oct 24, 2006 6:01 pm
A couple of questions....

Last post by Slugfoot
Replies: 3
by Slugfoot » Tue Oct 24, 2006 7:07 am

First post

Could someone please tell me what the internal diameter of 15mm copper tubing is please? Suggestions for good-fitting and consistent ammo would be...

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Thanks for the answer Pos.
I've just done a conversion and realised that 13mm is 0.5118 of an inch, which is very convenient but slightly annoying...

3 Replies

1843 Views

Last post by Slugfoot
Tue Oct 24, 2006 4:12 pm
Question about barrel length

Last post by Extrusion
Replies: 11
by Extrusion » Sat Oct 21, 2006 12:29 pm

First post

i made my first over under pneumatic a few days ago and i must say it it awsome but i think the barell may be a tad to long the chamber is 28 long...

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Yes, the valve is really limetting preformance; barrel pressure never exceeded ~20 psi, IIRC.
I'd expect an enormous improvement if you used a 1...

11 Replies

3794 Views

Last post by Extrusion
Tue Oct 24, 2006 2:00 pm
Another question

Last post by judgment_arms
Replies: 7
by judgment_arms » Mon Oct 23, 2006 6:31 pm

First post

Hey all, my dad and I just finished fitting and assembling a barrel sealing piston valve in a tee (We have not glued it yet). The piston is vary...

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Naw, it’s safe to use on rubber and stuff, Its non petroleum.

7 Replies

2190 Views

Last post by judgment_arms
Tue Oct 24, 2006 12:16 pm
Piston Valve questions

Last post by kraken
Replies: 4
by kraken » Mon Oct 23, 2006 6:59 pm

First post

I'm gearing up to build my first pneumatic potato gun and I have some piston questions. I will be building an over-under with the piston in the tee....

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thanks for the input guys. I was going to try to make it as light as possiable and seal it with o-rings. I'll will try and get some pics up as soon...

4 Replies

2228 Views

Last post by kraken
Tue Oct 24, 2006 6:36 am
BB Spread Safe Speed

Last post by POS
Replies: 10
by Atlantis » Mon Oct 23, 2006 2:01 pm

First post

My friend wants a rocket launcher type pneumatic that will fire about 200 BB's, we plan on using a 1.5 Barrel and 3 Chamber, coaxial with a barrel...

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Shadowghost21, could you post som pics of that, or send some to me please ? I'm interested in that.

10 Replies

3568 Views

Last post by POS
Tue Oct 24, 2006 2:42 am
Piston Speed

Last post by POS
Replies: 7
by squeaks » Mon Oct 23, 2006 10:15 am

First post

Ok, here's a question I've had for a long time. What is faster, a chamber sealing piston or a barrel sealing piston?

Thanks for the help in advance...

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cause he can ?

7 Replies

2515 Views

Last post by POS
Tue Oct 24, 2006 2:24 am
Tap Loader?

Last post by CS
Replies: 4
by Slugfoot » Mon Oct 23, 2006 4:04 am

First post

Hi all, I'm thinking of starting a copper gun and have been looking at some of the designs floating around here. I like the idea of a breach loader...

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Frankrede, google?

Obtained by googling '3 way ball valve'

4 Replies

2049 Views

Last post by CS
Tue Oct 24, 2006 12:58 am
Problem with CP-100 sprinkler valve

Last post by shadowghost21
Replies: 4
by shadowghost21 » Sun Oct 22, 2006 3:24 pm

First post

Its a UNmodded rain bird cp-100 1 and I just got the gun put together and epoxied. Now when I pump the chamber it leaks like a bitch. I put pipe tape...

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Is there a way to fix it from leaking CO2, it cant hold air that well and when I use my CO2 bike pump I got JUST FOR THIS project its a no go and...

4 Replies

2251 Views

Last post by shadowghost21
Mon Oct 23, 2006 11:03 pm
SCH 80 conduit?

Last post by SpudStuff
Replies: 4
by judgment_arms » Sun Oct 22, 2006 8:23 pm

First post

I was at Home Depot earlier and I saw SCH 80 PVC, but it said something about conduit and radio something. It had a flared end like conduit. Will...

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And Not cellular core, the conduit is much more brittle ans is likley to snap or go pop. I would reccomend that you only use pressure rated pipe on...

4 Replies

2170 Views

Last post by SpudStuff
Mon Oct 23, 2006 8:44 am
plywood piston

Last post by joannaardway
Replies: 22
by judgment_arms » Fri Oct 20, 2006 1:58 pm
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Greetings all,
I have come here in order to tap into the vast and semi-limitless knowledge of Spud-files!
Ok, now on more serious note. Do you guys...

Last post

i think hes trying to say 923 pounds of force because it would be 100 pounds PER square inch. but i doubt you would have 9 square inches

1)...
22 Replies

6400 Views

Last post by joannaardway
Mon Oct 23, 2006 6:39 am
Profs Over Under Gun

Last post by ProfessorAmadeus
Replies: 13
by ProfessorAmadeus » Fri Oct 20, 2006 11:40 pm

First post

Here it is The Europa 10,000!! It has a 3ft by 2in chamber and has a 5ft 1 inch barrel not shown here. Also I have pictured my new .22 cal ruger...

Last post

I plink and varmint hunt with it. I took the scope off because im getting new lower lying scope rings. It has a new BSA sweet .22 and it compensates...

13 Replies

4551 Views

Last post by ProfessorAmadeus
Sun Oct 22, 2006 10:50 pm
Chicken Gun

Last post by benstern
Replies: 7
by Mr.Taterhead » Sat Oct 21, 2006 6:41 pm

First post

Just watched Mythbusters and they made this cool Chicken Gun. They use it to test aircraft windsheilds. Pretty cool. At 50psi the chicken launched at...

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They would get more preformance if they used a triggered burst disk.
Butterfly valves suck when used in air cannons.

7 Replies

3016 Views

Last post by benstern
Sun Oct 22, 2006 7:56 pm
GGDT UNmodded Sprinkler valve

Last post by boilingleadbath
Replies: 2
by shadowghost21 » Sat Oct 21, 2006 9:13 pm

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Dont know how to model an UNmodded rainbird cp-100 1 valve. DONT send me to the GGDT website where he details a MODDED valve, I have already been...

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Same values... except you might drop the pilot volume .1-.07 cubic inches, and the vent is much smaller. (dunno how big. Maybe .05 or so.)

I'll...

2 Replies

1350 Views

Last post by boilingleadbath
Sun Oct 22, 2006 7:56 pm
exhaust muffler

Last post by schmanman
Replies: 1
by haulinick » Sun Oct 22, 2006 2:24 pm

First post

I was randomly browsing mcmaster and I came across exhaust mufflers (page 312). I was thinking, would these work well to shut up annoying pilot...

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It would also restrict the flow, and slow the muzzle velocities.

1 Replies

1332 Views

Last post by schmanman
Sun Oct 22, 2006 2:47 pm
Using Co2 without spending a Ton of cash???

Last post by Bipedal
Replies: 10
by shadowghost21 » Wed Oct 18, 2006 11:16 am

First post

I wanted to use the mini co2 cartages in a nerf gun of mine to make it so it does not need to be pumped (It is now an airsoft gun) I wanted to know...

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Go with the bike adapter idea. It fits in your pocket, it's fast, it's awesome.

10 Replies

4115 Views

Last post by Bipedal
Sun Oct 22, 2006 12:30 pm
Old Mapp / Camping Propane tanks as pressure 'charge'

Last post by Bipedal
Replies: 11
by Bipedal » Sat Oct 21, 2006 1:21 am

First post

Hey everyone. I've been lurking around for a while, and I'm going to build a pneumatic gun at some point in the future. What I want to know is, I...

Last post

Walmart also has some smaller 7gallon ones that you could put inside of a backpack with the hose sticking out then just push the hose onto the...

11 Replies

4806 Views

Last post by Bipedal
Sun Oct 22, 2006 12:25 pm
1/2" Sprinkler valves?

Last post by Extrusion
Replies: 6
by Extrusion » Sat Oct 21, 2006 11:51 pm

First post

Is there 1/2 sprinkler valves because i havent seen any around here and i was wondering if there are 1/2 sprinkler valves thx for any help.

Last post

ok i guess but i camt do it now for sure i cant even stand up much less go buy parts lol

6 Replies

2094 Views

Last post by Extrusion
Sun Oct 22, 2006 12:17 am
brianthebrains sawnoff riot gun replica

Last post by killagorrila99
Replies: 62
by killagorrila99 » Tue Jul 25, 2006 3:46 am
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well this is the riot gun replica
good, small gun. not to mention POWERFULL. i had to buy a new end cap caus the bike valve on the last one shot out....

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Yea I did, as I said. Gave the parts to my friend though caus I wanted a fresh start. The hunting rifle needs a new piston Caus that one smashed...
62 Replies

21716 Views

Last post by killagorrila99
Sat Oct 21, 2006 11:09 pm
First Pneumatic

Last post by Tyro
Replies: 33
by frogy » Sat Jun 03, 2006 6:02 pm
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My first pneumatic

This is the concept for the gun:

Full Shot:

Full Shot w\ Ghetto Block:

Valve and accessories:

Business end :

This...

Last post

so same size pipe as the valve would be good, Would 1 metre be enough?
33 Replies

10392 Views

Last post by Tyro
Sat Oct 21, 2006 10:11 pm
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

2881 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...

Last post

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

1947 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

7233 Views

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

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Pneumatic Cannons

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