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...

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thank you for creating this website is there anything i can do to help
15 Replies

1203289 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

605499 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...

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great job everyone
64 Replies

858314 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

1021470 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

392834 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

100145 Views

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

Topics

surface calculation? (don't really know what to write here)

Last post by SpudFarm
Replies: 6
by SpudFarm » Thu Jun 19, 2008 5:21 pm

First post

so:
my calculations say that the golf ball barrel on larda is 6.92 times as big as the barrel on my marble gun. so i multiplied 5 with 6.92 and got...

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i PM you Jimmy since you talk to advanced for my math :D

6 Replies

2173 Views

Last post by SpudFarm
Fri Jun 20, 2008 9:54 am
1" Piston

Last post by n-strike
Replies: 64
by n-strike » Sun Jun 15, 2008 10:42 pm
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Hello, I want to make my first piston, but I want to make it in a 1 tee...would that be too small or would there be a piston small enough to fit, AND...

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Alright, thanks battlemonkey.
64 Replies

17301 Views

Last post by n-strike
Fri Jun 20, 2008 3:13 am
Simple PSI gauge idea

Last post by battlemonkey
Replies: 20
by Coodude26 » Wed Jun 18, 2008 9:48 pm
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Could I possibly get a threaded car tire pressure gauge? I had an idea to add an extra Schrader to my pneumatic and somehow attach it so it won't...

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Well if it's broke then get out ya spanner and fix it :D
20 Replies

5801 Views

Last post by battlemonkey
Fri Jun 20, 2008 3:05 am
A.E.S.P.P.G (an easy spare parts piston gun)

Last post by Carlman
Replies: 38
by Mr.Sandman » Mon Jun 16, 2008 10:54 pm
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This is my gun that i just made. I was really bored and decided to make a piston gun. For the valve i used a type of barrel sealing valve i call a...

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DONT T WORRY ABOUT PEOPLE COPPING YOU TESTE ME!!!!!!!!!!!!

wtf
38 Replies

10238 Views

Last post by Carlman
Fri Jun 20, 2008 2:39 am
For the life of me I cannot figure this out...white fog?

Last post by jimmy101
Replies: 13
by Coodude26 » Wed Jun 18, 2008 9:34 pm

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What is the whitish fog that comes out when you shoot a pneumatic?

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When gases expand they cool off. If they cool off enough the moisture in the gases will condense and form a cloud. It doesn't really matter much that...

13 Replies

6008 Views

Last post by jimmy101
Fri Jun 20, 2008 1:08 am
C:B ratio question

Last post by Pilgrimman
Replies: 6
by freddy1919 » Thu Jun 19, 2008 9:53 pm

First post

ok so im fairly new at this, just built my first combustion cannon last week, now i want to build a pneumatic one. All im looking for is best lengths...

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I would buy a 2 ball valve if you are uncomfortable making a piston cannon. A sprinkler valve is simply too small to give good performance, unless...

6 Replies

2027 Views

Last post by Pilgrimman
Thu Jun 19, 2008 11:08 pm
What i have been working on

Last post by SpudUke5
Replies: 19
by SpudUke5 » Wed Jun 18, 2008 12:07 am
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Well this is what i have been doing lately.

I think its pretty good for my first time with copper.

This gun isn't currently soldered so that needs...

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Ok i got it working (hooray) but i still wont have pics, and the gun is going to be Out of order for now, because i need to the piston (cast a new...
19 Replies

4811 Views

Last post by SpudUke5
Thu Jun 19, 2008 9:16 pm
Remote detonate paintball claymore (will this Work???)

Last post by ImHUGEnJAPAN
Replies: 30
by ImHUGEnJAPAN » Thu Jun 12, 2008 3:17 pm
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My friend and I have been toying with the idea of making claymores for playing paintball. Since grape shot devices are not allowed at most fields and...

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Thanks Grumpy that's perfect!
30 Replies

12540 Views

Last post by ImHUGEnJAPAN
Thu Jun 19, 2008 2:18 pm
hot glue/tees

Last post by sandman
Replies: 5
by FishBoy » Wed Jun 18, 2008 9:45 pm

First post

2 things-
1- anyone have any tips (somewhat detailed plz) on making 1 hot glue pistons?

2- In a 1 tee, do you need to sand/otherwise get rid of,...

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I would use turbo's idea if i were you

5 Replies

1794 Views

Last post by sandman
Thu Jun 19, 2008 10:35 am
Tornado SK1

Last post by Carlman
Replies: 13
by Carlman » Mon Jun 16, 2008 4:21 am

First post

Hi all,

I have had this gun built for about a month now just never got the time to post it. It is far from completed but this thread will be updated...

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thanks cam

damage will be up in a couple of days time as i am going to my block to shoot :D

13 Replies

5162 Views

Last post by Carlman
Thu Jun 19, 2008 5:33 am
compressed air lung... with theory for gatling gun

Last post by trollhameran
Replies: 29
by trollhameran » Mon Jun 16, 2008 12:48 pm
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Im looking for ways that i could make a sort of lung that is filled with compressed air and then it can breathe the air out into a chamber and then...

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ah cool, your is quite a bit bigger than the one im making then, but i will probably make a bigger version once i get it to work. Im planning on...
29 Replies

6995 Views

Last post by trollhameran
Thu Jun 19, 2008 1:13 am
Pressure washers as air compressors

Last post by THUNDERLORD
Replies: 18
by iisthemuffin » Wed Jun 18, 2008 3:29 pm
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Well i was sitting on my couch when this thought popped into my head. Im not entirely certain how pressure washes work but if you were to turn it on...

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Sometimes when I pee alot of pressure comes out.
Maybe I could just pee air out.
That would be better than lung powered maybe.

Also, I've noticed...
18 Replies

4812 Views

Last post by THUNDERLORD
Wed Jun 18, 2008 7:04 pm
Will this copper cannon design work?

Last post by SpudFarm
Replies: 7
by iisthemuffin » Wed Jun 18, 2008 9:52 am

First post

This is my first attempt at a copper cannon as well as a piston operated cannon. I was wondering if this would work? Well, i know it will work but is...

Last post

you got it!

7 Replies

1850 Views

Last post by SpudFarm
Wed Jun 18, 2008 3:24 pm
"The Triple Threat" 3 valve concept!

Last post by ImHUGEnJAPAN
Replies: 15
by ImHUGEnJAPAN » Tue Jun 17, 2008 6:46 pm
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After the success of my first cannon I'm itching to build another one. Only this time I want MORE P :shock: WER! I'm thinking about a triple valve...

Last post

Thanks for the comments everyone.
15 Replies

4758 Views

Last post by ImHUGEnJAPAN
Wed Jun 18, 2008 3:01 pm
Potential pneumatic - question

Last post by Coodude26
Replies: 10
by Coodude26 » Tue Jun 17, 2008 9:03 pm

First post

I have already made 2 pneumatics with success and now I'd like to try a pneumatic.

I'm somewhat new to these forums so I might not know all the...

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The pressure WILL drop each shot. But there are ways for not having that.

You can use an high-pressure tank (way higher pressure then your gun will...

10 Replies

2528 Views

Last post by Coodude26
Wed Jun 18, 2008 1:16 pm
Valve trouble:

Last post by judgment_arms
Replies: 18
by judgment_arms » Thu May 15, 2008 4:43 pm
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Dang-nab-it, I have the worst luck with valves!
Every last Sprinkler valve I buy leaks, and I can’t even get a piston valve to work right! :x

But...

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Guide washer:
When you cut that cross in the guide fender washer the face of the piston now has a lot of play - leaking piston face. Drill a series...
18 Replies

18806 Views

Last post by judgment_arms
Wed Jun 18, 2008 9:00 am
Linear Piston Valve Idea

Last post by jackssmirkingrevenge
Replies: 24
by MrCrowley » Tue Jun 17, 2008 12:23 am
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I thought of this when trying to sleep last night, I think I have everything covered but want to make sure and share this idea unlike Mr.Sandman....

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I once made a coaxial with the body of a footpump as a chamber, must have been around 50mm diameter. Managed to pilot it with a schrader, but then...
24 Replies

5266 Views

Last post by jackssmirkingrevenge
Wed Jun 18, 2008 5:44 am
Would a quick connect shrader fill faster?

Last post by daxspudder
Replies: 5
by iisthemuffin » Tue Jun 17, 2008 6:28 pm

First post

I was wondering if i were to put in a quick connect valve and then snap this on over it, would it fill faster than a standard shrader valve you get...

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To answer your question, No. It will fill at exactly the same rate as being threaded directly, but if your like MRC, the use of quick connects limit...

5 Replies

1315 Views

Last post by daxspudder
Tue Jun 17, 2008 11:11 pm
Coagulation Damage Vids

Last post by LynyrdSkynyrd

by LynyrdSkynyrd » Tue Jun 17, 2008 9:05 pm

heres the thread:

0 Replies

1846 Views

Last post by LynyrdSkynyrd
Tue Jun 17, 2008 9:05 pm
overloading guages

Last post by psycix
Replies: 7
by Sticky_Tape » Mon Jun 16, 2008 4:14 pm

First post

Can you break a guage by putting more pressure in it than it reads?

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Of course different brands and different gauges will give different results...

You just answered your own question ;)

Darn! I hoped for an answer...

7 Replies

1283 Views

Last post by psycix
Tue Jun 17, 2008 3:39 pm
(plz help me w/) my 1" piston

Last post by psycix
Replies: 14
by FishBoy » Mon Jun 16, 2008 8:22 pm

First post

Ok, i'm in the process of making a piston-valve pneumatic, and I have a question. First I will explain my valve, The piston itself consists of a...

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Just learn that pistons always have to be larger then the pipe they seal against and your fine. :D
The only reason for this is that frontal area is...

14 Replies

3893 Views

Last post by psycix
Tue Jun 17, 2008 3:09 pm
evacuated barrel

Last post by psycix
Replies: 18
by Sticky_Tape » Tue Jun 10, 2008 2:30 pm
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Hi I am making a triggered burst disk rifle and I am wondering if evacuating the barrel will make the rifle shoot faster that is what I am going for...

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So an evacuated barrel would increase the muzzle velocity by ~2.4%.
Hmm that is quite dissappointing I think. Though more effective on lighter...
18 Replies

3392 Views

Last post by psycix
Tue Jun 17, 2008 2:03 pm
Need New Zealand Ideas

Last post by microman171
Replies: 13
by microman171 » Mon Jun 16, 2008 12:14 am

First post

My coaxial needs a whole bunch of new parts and it is all solvent welded together so I would have to start again. I have decided I may as well make a...

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Aw. Well that certainly puts copper out of the question... I am still interested in the toolies style gun.

13 Replies

2785 Views

Last post by microman171
Tue Jun 17, 2008 1:13 am
Ghostbuster Style Water Gun

Last post by TheTrooper
Replies: 18
by TheTrooper » Sat Jun 14, 2008 8:23 pm
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Heres my simple but powerful water gun!

Here it is in a backpack, perfect for concealing it.

The entire water gun.

This is where the water...

Last post

Well I was lucky cause i found the garden hose attachment in my garage, it fit perfectly and with some Teflon tape it was airtight. Have not had any...
18 Replies

6302 Views

Last post by TheTrooper
Mon Jun 16, 2008 10:07 pm
Can someone direct me to the post on barell vs chamber ratio

Last post by jimmy101
Replies: 14
by Shango » Sat Jun 14, 2008 4:08 pm

First post

I found it the other day but before I could bookmark it, I was distracted (wife nagging about my f****n' Spud Guns, if you can imagine!). I can't...

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Contrary to some of the information I've seen, using heavier projectiles actually increases the optimal barrel length for a given chamber volume and...

14 Replies

5050 Views

Last post by jimmy101
Mon Jun 16, 2008 5:05 pm

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