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

1125587 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

552571 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

821410 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

967403 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

375049 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

92463 Views

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

Topics

Has anyone seen this valve?

Last post by psycix
Replies: 8
by jcinco101 » Wed Sep 23, 2009 7:21 pm

First post

Looking to expand my cannon but I can't find this valve. Does anyone know where to purchase or the name of this valve. It has M7 on one side and A, B...

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as others have mentioned its prolly not worth it to get this particular valve. Whats wrong witth adding a elbow to a valve and having a over under?...

8 Replies

1096 Views

Last post by psycix
Fri Sep 25, 2009 9:21 am
300 psi+ Piston rifle

Last post by al-xg
Replies: 34
by CpTn_lAw » Mon Apr 27, 2009 12:16 pm
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Hello guys!!

I'm here to present to all of you, my newest build, a (relatively) high-pressure,barrel-sealing, piston pneumatic rifle ! Now, this is...

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I wish i had a QEV!! would make my life easier!!!! They're so expensive in france...I can't afford one...

Order one from the UK instead, total cost...
34 Replies

10830 Views

Last post by al-xg
Thu Sep 24, 2009 8:57 pm
sprinkler valve problem

Last post by Brian the brain
Replies: 8
by geardog32 » Tue Sep 22, 2009 3:41 pm

First post

so this week i put my sprinkler valve cannon on a diet and cut down the chamber to half its size and i also gave it a shorter barrel. it worked...

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I used the plastic stick from a lollypop once..if it fits in it's perfect..
Heat up the ends and they swell up, sealing it into the hole.

8 Replies

1999 Views

Last post by Brian the brain
Thu Sep 24, 2009 4:04 pm
just an idea.

Last post by Jaygnar
Replies: 3
by Jaygnar » Tue Sep 22, 2009 2:45 pm

First post

I had an idea that I thought might be fun and I thought I would share. Basically choadish little launcher that would fire ping-pong balls.
The body...

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Thanks for the advice! And also, yes I totally ripped off your QDV with the plan.
Kudos on that design by the way!
Love the linear, self contained...

3 Replies

1296 Views

Last post by Jaygnar
Thu Sep 24, 2009 10:45 am
3/4" Copper pneumatic

Last post by boyntonstu
Replies: 2
by boyntonstu » Wed Sep 23, 2009 4:44 pm

First post

I accidentally arrived at the chamber to the side position as I was tightening the fittings.

I would not have thought of doing it this way.

Since...

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Sure sounds like a winner!
The Stengun reservoir looks like fun.Great that it also helps balancing.
Let's see some damage.. :D

Wouldn't it be...

2 Replies

1716 Views

Last post by boyntonstu
Wed Sep 23, 2009 5:04 pm
.22 cal pellet coax

Last post by c11man
Replies: 28
by c11man » Sun Aug 30, 2009 12:45 pm
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i wanted a decent powered small bore so i came up with this. i run this at a max of 150psi right now because of a lack of a high pressure pump. but...

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with the epoxy im not saying its not possible to break, just pretty darn hard to. i had lored some left over jb weld into a circle and when dry it...
28 Replies

8003 Views

Last post by c11man
Tue Sep 22, 2009 11:48 pm
is it possible to pnuematically mod one of these?

Last post by Hubb
Replies: 6
by covey12 » Sat Sep 19, 2009 3:19 pm

6 Replies

1632 Views

Last post by Hubb
Tue Sep 22, 2009 7:21 am
Schrader pressure limit?

Last post by jackssmirkingrevenge
Replies: 17
by boyntonstu » Sun Sep 20, 2009 7:37 pm
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What is the maximum pressure that a Schrader valve can be used in a pneumatic cannon?

IOW I would like to try a Schrader valve to fill the gun an...

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Which type do you have?
17 Replies

13569 Views

Last post by jackssmirkingrevenge
Tue Sep 22, 2009 5:34 am
Machined inline diaphragm->piston valve mod.

Last post by psycix
Replies: 13
by psycix » Sun Sep 20, 2009 6:57 am

First post

BTB handed me a brass sprinkler-type diaphragm valve, of which he blew the diaphragm. He asked if I could machine something for it.
Well of course I...

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Me thinks you should round of the edges on the machined block :)
Good idea, I might do that on later projects.
I think a bit of mirror-shiny...

13 Replies

3071 Views

Last post by psycix
Tue Sep 22, 2009 4:55 am
Pneumatic Silencer?

Last post by jackssmirkingrevenge
Replies: 45
by Northir » Thu Sep 17, 2009 12:36 am
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i was told today that the cannon i made is to loud and destructive so i thought what if it was quiet and destructive, ive seen a few silencers around...

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The ratio certainly doesn't help, and probably you were let down by insufficient porting too.

Also on a launcher this size, the silencer volume...
45 Replies

11205 Views

Last post by jackssmirkingrevenge
Mon Sep 21, 2009 9:38 pm
My first pneumatic

Last post by wngovr
Replies: 14
by wngovr » Sun Apr 19, 2009 7:12 pm

First post

About 25 years ago I bought a blow gun (lung powered dart gun) and had a lot of fun with it. Then I had this great idea of applying high pressure air...

Last post

so how well does using a blowgun for a valve work?

Worked pretty well. It was modified to allow maximum air flow. I wouldn't use it for anything...

14 Replies

7904 Views

Last post by wngovr
Mon Sep 21, 2009 5:29 pm
Homemade solenoid

Last post by ramses
Replies: 26
by AlphaOmega » Wed Sep 16, 2009 10:27 am
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Hello all this is my very first post on here I have been doing a lot of reading just this is my first post. I have drawn much inspiration since I...

Last post

higher voltage - more efficient and less current through switches.

actually, more current flows for a shorter period of time, but they do tend to...
26 Replies

9138 Views

Last post by ramses
Mon Sep 21, 2009 2:54 pm
Soldered: My first pneumatic

Last post by boyntonstu
Replies: 10
by boyntonstu » Sun Sep 20, 2009 8:20 am

First post

After having to fight to retrieve it, I added a small 'eye' and also a bumper.

At the sealing end I used a pair of Home depot 1/2 flat washers and a...

Last post

the rubber is held to the oak with sheet metal screws.

No i ment in the first picture it looks like that the piston has been fired into some wood...

10 Replies

2128 Views

Last post by boyntonstu
Sun Sep 20, 2009 12:15 pm
Portable Airsoft Gun take 2

Last post by noname
Replies: 4
by noname » Sat Sep 19, 2009 11:01 am

First post

So I took apart the old one because it was too cumbersome and figured out a much more compact bullpup configuration. The gun also looks a whole lot...

Last post

I have a working spring fed mag now, made from a 5 long piece of 1/8 steel pipe. Stuck a couple springs in and put an end cap on and it works fine....

4 Replies

2143 Views

Last post by noname
Sun Sep 20, 2009 10:49 am
Sawed-off III, progress pics.

Last post by Brian the brain
Replies: 36
by Brian the brain » Sat Aug 22, 2009 4:34 am
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Off to summervacation in an hour.
I just had time to share this with you..

Cannon name: Lupara ( Sawed-off III)
Cannon type: Single shot Pneumatic...

Last post

Why? :roll:
It's not the most powerful cannon I own..

It makes holes in plywood...just like it's predecessors..

This thing is about new building...
36 Replies

14558 Views

Last post by Brian the brain
Fri Sep 18, 2009 5:28 pm
my m72a2 LAW (airsoft)

Last post by django
Replies: 11
by rey de papa » Fri Sep 11, 2009 4:00 pm

First post

Hi,
I was not gonna post this but the people who welcomed me in my hello world thread encouraged me to. So here it is.

My attempt at replicating an...

Last post

Wow!!!, nice job= I love it mate I was looking at this and reading the construction details as I wanted to make one but sadly looks like I cant...

11 Replies

7037 Views

Last post by django
Fri Sep 18, 2009 6:07 am
spudguns and official paintball

Last post by mobile chernobyl
Replies: 5
by covey12 » Wed Sep 16, 2009 3:30 pm

First post

does anyone know if you would be allowed to bring a homemade pnuematic painball weapon to a professional game? i would guess you could use the...

Last post

If your looking to play Scenario or any other woods-type paintball than most likely YES, so long as it chrono's fine and fires that speed...

5 Replies

1638 Views

Last post by mobile chernobyl
Thu Sep 17, 2009 6:32 pm
Before I solder

Last post by Technician1002
Replies: 14
by boyntonstu » Sat Sep 12, 2009 1:25 pm

First post

I want it to look similar to a Sten gun.

It seems to me that a straight chamber to T path would be quicker than adding an elbow or two.

This...

Last post

@boyntonstu Very nice work. I like the wide valve seat. I was considering soldering on a pipe cap and drilling it out to the ID of the pipe to make a...

14 Replies

3200 Views

Last post by Technician1002
Thu Sep 17, 2009 12:37 pm
Possible 3" sprinkler valve for sale.

Last post by jrrdw
Replies: 4
by Carlman » Wed Sep 16, 2009 12:16 pm

First post

Gday guys,

From what little spudding I have time for now, I want to focus on small bore guns just to have a plink with.

Therefore i wish to sell my...

Last post

I been around, wish I still was... yeah.

Currently fiddling with a 1.34 calibre piston launcher, watch this space :D

You can list it in discussion...

4 Replies

3374 Views

Last post by jrrdw
Thu Sep 17, 2009 5:14 am
Question about hammer valve force?

Last post by Hubb
Replies: 1
by AlphaOmega » Wed Sep 16, 2009 5:33 pm

First post

I was wondering if anyone might have an idea of the approximate force in lbs. of your average 3000 psi pcp air guns hammer valve? As always any info...

Last post

Mathwork, my dear boy.

energy = mass x acceleration

1 Replies

1101 Views

Last post by Hubb
Wed Sep 16, 2009 5:34 pm
full metal pistion questions

Last post by cannon monkey
Replies: 5
by cannon monkey » Tue Sep 15, 2009 8:01 pm

First post

i was going to make a new piston for my valve ( hot glue piston now and going for bolt with washers on it with few nuts)

ok well instead of grinding...

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qwerty yes it needs somehair infront of it and there a part inside the brass bushing that only lets me screw in the part half way..... and for me i...

5 Replies

1581 Views

Last post by cannon monkey
Wed Sep 16, 2009 5:05 pm
Decimator video UPDATE 07-20-09

Last post by jackssmirkingrevenge
Replies: 54
by jeepkahn » Tue Jul 07, 2009 1:48 pm
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Haven't gone unregged yet but the first time I fired it with a 1 ballbearing @600psi it kicked so hard it broke off the brass fitting that the...

Last post

I don't get a lot of sleep :P :D
54 Replies

19192 Views

Last post by jackssmirkingrevenge
Wed Sep 16, 2009 10:44 am
MrCrowleys GB cannon, Built by me, Update: Fixeded

Last post by psycix
Replies: 31
by Northir » Mon Sep 14, 2009 7:25 pm
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this is the golf ball cannon that MrCrowley shows you how to build in this instructiable i built it pretty close to the way he shows in his TUT with...

Last post

You can extend the barrel into the tee so the piston is behind the hole.
On high-performance launchers, this may cause some flow restriction.
Not...
31 Replies

11326 Views

Last post by psycix
Wed Sep 16, 2009 4:20 am
Why did I fail?

Last post by dewey-1
Replies: 59
by spudnutbutthut » Sat Sep 12, 2009 6:09 pm
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Wel, some of you may remember my propane powered pneumatic canon thread.

Well, I attempted it.

propane bottle connected to a camp stove burner...

Last post

Yikes! (Wow!) Dewey, nice launcher pics!
Those blowers have gauges included too,
MrC. and others have used that type before.
BTW, in the pic, the...
59 Replies

17125 Views

Last post by dewey-1
Tue Sep 15, 2009 11:41 am
Help with trigger

Last post by psycix
Replies: 3
by jor2daje » Mon Sep 14, 2009 4:54 pm

First post

My mead 3-way valves finally came today so I threw together a quick test so I could try out if my mechanism would work. The filling and firing valve...

Last post

Or put the elbow between the 3way valve and the QEV.

3 Replies

1677 Views

Last post by psycix
Tue Sep 15, 2009 5:12 am

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