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

1201416 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

604815 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

857683 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

1020664 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

392545 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

100029 Views

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

Topics

fittings question?

Last post by praetorian91
Replies: 5
by roughboy » Sun Jun 17, 2007 9:13 pm

First post

How can i tell whats the psi rate on a copper fitting?

What is the psi rating on a copper fitting?

My 3/8'' metal ball valve's lable says (WOG...

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water or gas. Last time I checked, air was a gas. So yes, you can take it up to 600 psi if you must.

3/8 to 1/4 to 1/2? this does not make sense....

5 Replies

1883 Views

Last post by praetorian91
Sun Jun 17, 2007 10:50 pm
my paint ball sniper

Last post by th3p0p0
Replies: 9
by th3p0p0 » Sun Jun 17, 2007 9:28 pm

First post

ok its a paint ball sniper with a 2 chamber, 3/4 CPVC barrel, 1/4 quick connect to fill and shredder. a psi gage a 3/4 sprinkler valve moded with a...

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thank you goat. im going to be playing with this gun so i think i will try the 10 round tubes instead of the hopper. and 4 the barrel i think im...

9 Replies

2403 Views

Last post by th3p0p0
Sun Jun 17, 2007 10:21 pm
40mm aluminum shells

Last post by Velocity
Replies: 6
by Solar » Sun Jun 17, 2007 1:46 am

First post

Here are the shells that will be used on the Eclipse launcher. I just had 600 of these made up. They are 6 inches long with a maximum OD of 1.772...

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put it in the classifieds not sounding like an advertisement...

Wouldn't he want it to be an advertisement if he put it in the classifieds? Of...

6 Replies

2123 Views

Last post by Velocity
Sun Jun 17, 2007 12:54 pm
AT4

Last post by Boomer_
Replies: 28
by sapper911 » Sun Jun 18, 2006 9:40 pm
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AT4 Shoots 2 Nerf Vortex Foot balls 150' I also made some Airsoft AP rounds that can take out a group at 75'

It is a simple sprinkler valve...

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Wow, great job. Looks very authentic, and I'm interested in your airsoft rounds, do tell.
28 Replies

13735 Views

Last post by Boomer_
Sun Jun 17, 2007 11:27 am
Piston Valve?

Last post by Modderxtrordanare
Replies: 4
by SpoonZ » Sun Jun 17, 2007 5:37 am

First post

Ive looked and kind of see how piston valve works. But Im really lazy when it comes to thinking. So I wanted to know if anyone has a How To on piston...

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I can see that. But my question wasnt how they work it was does anyone have a tutorial on making one?

I searched before I posted.

Oh, sorry to be...

4 Replies

1228 Views

Last post by Modderxtrordanare
Sun Jun 17, 2007 6:07 am
my all metal sniper rifle

Last post by nuclearspud
Replies: 13
by roughboy » Wed Jun 13, 2007 9:48 pm

First post

This is my all metal rifle.it's a piston barrel sealer,the plastic ball valve on the barrel is the ammo loader it is not my idea i took the idea from...

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Nice gun man. Like to see people get creative with metal, i also commend you for the lead shot. I have a lead melter that i make shot with too, i got...

13 Replies

6292 Views

Last post by nuclearspud
Sat Jun 16, 2007 8:11 pm
3.1 0z airsource bottle

Last post by VH_man
Replies: 17
by Acdcmonkey1991 » Thu Jun 14, 2007 3:27 pm
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I am currently redesigning my m700 sniper rifle. For the chamber I found a used 3.1 oz airsource cartridge as they call it, like this one.

I want...

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so? just buy more? it would allow the grips/co2 mags of co2 guns to be halph the size or less........ but i do see your point. im gonna use the empty...
17 Replies

3805 Views

Last post by VH_man
Sat Jun 16, 2007 4:23 pm
co2

Last post by WOW!!
Replies: 7
by winters921 » Thu Jun 07, 2007 9:46 pm

First post

i currently a cannon with a 3/4 in modded orbit spinkler valve, 2ft 2inch pvc pipe chamber and a 3 ft barrel which is also 2 inches. i used a bike...

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I have a RPG I use for paintball and I allways used a bike pump, but I hooked up my remote line so that now I can use my 20ox tank.

What I did was...

7 Replies

2693 Views

Last post by WOW!!
Sat Jun 16, 2007 11:59 am
Sniper Cannon

Last post by simo
Replies: 24
by PCGUY » Sat Feb 05, 2005 3:29 pm
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SNIPER CANNON

Provided By

This launcher is incredible. It's design and look alone is intriguing and intimidating enough to give any potato the...

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that is very well done but i think that air chamber is quit big but if your shooting potatoes that will do the job. i have a pneumatic that shoots...
24 Replies

25660 Views

Last post by simo
Fri Jun 15, 2007 6:34 pm
SVD Pneumunov

Last post by potatoflinger
Replies: 14
by joe blogs » Mon Apr 30, 2007 6:09 am

First post

SVD Pneumunov

This is my best gun to date. It’s cheap and accurate plus very robust because of the general design and doesn’t have many parts just...

Last post

Very good looking gun, but you should treat your mom a little nicer, I mean, she did give birth to you, didn't she?

14 Replies

6608 Views

Last post by potatoflinger
Wed Jun 13, 2007 7:16 pm
Need help with a valve

Last post by tomthebomb137
Replies: 10
by tomthebomb137 » Tue Jun 12, 2007 2:38 pm

First post

okey so i built a pretty sweet cannon, but when i gasses it up my sprinkler valve (hasn't been modded yet) wont hold any pressure what so ever an...

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The equalization hole might be too small so when it's filled fast, air doesn't make it above the diaphragm in time to keep it down.
Solution: On...

10 Replies

2923 Views

Last post by tomthebomb137
Wed Jun 13, 2007 6:44 pm
orbt 3/4 in sprinkler valves

Last post by Acdcmonkey1991
Replies: 10
by Acdcmonkey1991 » Mon Jun 11, 2007 1:14 pm

First post

Does anyone know if the manual bleed on the orbit 3/4 sprinkler valves is enough to exaust the valve
LOOK:

Last post

I already took care of it... I moded the valve with a 3/8 elbow and ball valve, pics are coming soon

10 Replies

1956 Views

Last post by Acdcmonkey1991
Wed Jun 13, 2007 6:08 pm
ammo?

Last post by Matt221985
Replies: 17
by Matt221985 » Wed Jun 06, 2007 5:19 pm
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any ideas for ammo for a air cannon with a 1 1/2 inch barrel beside spuds?

Last post

yea, i made one of those, they work great!
17 Replies

5838 Views

Last post by Matt221985
Wed Jun 13, 2007 5:15 pm
First Spudgun Ever!

Last post by MaltedBarley
Replies: 23
by MaltedBarley » Tue Jun 05, 2007 7:17 pm
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Shot of the right side of the gun

Left side

Valve & Elbows

Barrel support and pressure gauge

Pressure gauge and quick disconnect closeup

Last post

Thanks for the compliments guys,

ammosmoke: Sorry, for the confusion, I thought you were talking to me.

Killjoy: Yea, I have been looking at ways...
23 Replies

10033 Views

Last post by MaltedBarley
Wed Jun 13, 2007 9:37 am
My First Pneumatic (Help Me) (With Pictures)

Last post by pyromaniac
Replies: 111
by hotrocks » Thu May 10, 2007 6:27 pm
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(I'm sorry this is in the wrong section! Mods, Please move it)

Hello, I am 15 years old. For my science project I have to project a hockey puck as...

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Never use dvw... or ball valves. Otherwise I love the design

e ball valves are fine. they may not be fast opening but half of the spudders first...
111 Replies

27489 Views

Last post by pyromaniac
Tue Jun 12, 2007 2:25 pm
Bolt Action Marshmallow Rifle

Last post by Jumpin Jehosaphat
Replies: 23
by Jumpin Jehosaphat » Wed Jun 06, 2007 11:18 pm
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This is a Bolt Action Marshmallow Rifle.
You can view a basic marshmallow gun that someone uploaded earlier here

I took the idea and added...

Last post

Bolt isn't too important (just cool) because marshmallows will travel along curved paths, you can just stick 'em in the mouthpiece of the gun and...
23 Replies

13671 Views

Last post by Jumpin Jehosaphat
Tue Jun 12, 2007 1:30 pm
can i mod this 2 inch valve?

Last post by trae08
Replies: 9
by trae08 » Mon Jun 11, 2007 4:40 pm

First post

ok i got this 2 inch valve its a irritrol the model is 700 Series i think. heres a picture. i just want to know if its mod able. i can take some...

Last post

ok thanks for all the help. yea i have modded several 1 inch valves before but didnt know if the bigger 2 inch would have anything that would make it...

9 Replies

2218 Views

Last post by trae08
Tue Jun 12, 2007 8:54 am
High Velocity Pneumatic Golfball Relocator

Last post by rednecktatertosser
Replies: 21
by rednecktatertosser » Sun Jun 10, 2007 2:08 pm
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This is the first cannon I have posted here. I have dubbed it the HV-PGR, which will soon be painted on it in yellow letters over a flat black...

Last post

hmmmm im sensing some sarcasm here... :roll:
21 Replies

9123 Views

Last post by rednecktatertosser
Mon Jun 11, 2007 10:22 pm
Dead Space

Last post by Marco321
Replies: 12
by Marco321 » Fri Jun 08, 2007 5:52 am

First post

Hey
I have done some searching i haven't found any solid decent facts or information about what exaclty dead space is. So can anyone help me by...

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OK, thanks guys, you have helped heaps, and you answered a question i had about my valve and the ones on the GGDT website without me even asking lol.

12 Replies

13668 Views

Last post by Marco321
Mon Jun 11, 2007 4:33 am
piston bumper

Last post by A-98
Replies: 18
by roughboy » Tue May 15, 2007 12:39 am
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when building a piston gun is it important to install a bumper?

Is a bumper really important? even on an all steel piston cannon?

8) thanks...

Last post

tis a good idea. basic rule of thumb, if its under pressure, your main valve, and moves, you need a bumper.

So your saying a diaphragm needs a...
18 Replies

7987 Views

Last post by A-98
Mon Jun 11, 2007 12:12 am
More piston problems

Last post by chartreusesnot
Replies: 18
by Arborman » Thu Jun 07, 2007 12:21 pm
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I have tried to get this gun to work for about two weeks now and ...

i got nothing.

so i need some help.

it is a 4 coaxial with a 2 barrel.

When...

Last post

Anyone know what type of pipe/piece would fit well in a 2.5 inch tee?
18 Replies

5736 Views

Last post by chartreusesnot
Sun Jun 10, 2007 10:52 pm
Modding A sprinkler valve

Last post by sandman
Replies: 2
by ShowNoMercy » Sun Jun 10, 2007 9:16 am

First post

Hey I have a Rainbird 1 inch valve, the same one in the post made by pimpmann in the sticky on modding valves, and I was wondering if anyone has...

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i believe it is the valve that i have and i modded successfully

take a razor knife and cut down one of the things that go from the outside in on the...

2 Replies

9404 Views

Last post by sandman
Sun Jun 10, 2007 7:17 pm
Random Question

Last post by VH_man
Replies: 8
by ShowNoMercy » Sun Jun 10, 2007 8:24 am

First post

I was wondering what kind of force would be placed on a sear holding a 1 inch piston back from say 80 psi? I know I should know how to figure this...

Last post

ah. that makes sense now......

that helps me alot... wow now i have to re-examine the actual strentgh of my robotics project.

pneumatic rams are...

8 Replies

2081 Views

Last post by VH_man
Sun Jun 10, 2007 6:14 pm
GGDT

Last post by Acdcmonkey1991
Replies: 3
by Acdcmonkey1991 » Sat Jun 09, 2007 5:22 pm

First post

What would i select for a valve for a 3/4 sprinkler valve on the ggdt?

aka: valve type, flow coefeicency, seat diameter, dead volume, piston...

Last post

alright thnx man

3 Replies

1325 Views

Last post by Acdcmonkey1991
Sun Jun 10, 2007 5:44 pm
Piston performance

Last post by Panzerfaust
Replies: 7
by Panzerfaust » Sun Jun 10, 2007 11:55 am

First post

Just finished my second piston gun, (first was a small diameter in-line). The gun has a five foot 2 chamber and a 1 1/2 five foot long barrel. The...

Last post

Barrel is very very new (maybe fired 20-30 times). i am really thinking i should just go for a tighter fitting piston and a bigger chamber. I have a...

7 Replies

2524 Views

Last post by Panzerfaust
Sun Jun 10, 2007 4:05 pm

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