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

1124948 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

552116 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

821111 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

966949 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

374846 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

92383 Views

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

Topics

Making a pump....

Last post by sco77
Replies: 12
by sco77 » Sun Aug 14, 2011 1:25 am

First post

I was making a pump and was wondering how badly the dead space would impact performance? It is currently in a working state but not complete enough...

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I just went and ordered a PCP pump and a couple male fittings for guns... I will probably also get a fridge compressor when I get a hold of one for...

12 Replies

7361 Views

Last post by sco77
Mon Aug 15, 2011 11:31 am
Full Metal Launcher

Last post by Mr.Tallahassee
Replies: 7
by Mr.Tallahassee » Thu Aug 11, 2011 11:56 pm

First post

This is my newest finished project. The chamber is 3/4''x12'' steel pipe running through a Tee into the copper valve. The piston is hot glue with a...

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They most definitely are not. However, using my main 125PSI tank, I got it to pump to 180 once. I'm just going to make a hand pump for this task...

7 Replies

4244 Views

Last post by Mr.Tallahassee
Sun Aug 14, 2011 9:02 pm
pcp fitting?

Last post by sco77
Replies: 4
by sco77 » Fri Aug 12, 2011 11:09 am

First post

Are the PCP quick disconnect fitting (like on pcp pumps) the same standard QD fitting or is there anything special about them?

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You can also get them with check-valve built in. Theyre easier to disconnect because of the smaller SA, but I'd still recommend some sort of bleed...

4 Replies

2225 Views

Last post by sco77
Fri Aug 12, 2011 11:48 pm
good or bad piston idea ?

Last post by mattyzip77
Replies: 10
by Britishninja » Sun Aug 07, 2011 8:54 am

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im working on a barrel sealing piston valve and i could use some feed back on if this is a good design or not

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I think it is safe to say that this is not safe at all!! My suggestion would be back to the drawing board my friend!! You definatly get an A ++ for...

10 Replies

3366 Views

Last post by mattyzip77
Fri Aug 12, 2011 5:04 pm
Grappling Hook Launcher

Last post by crreed
Replies: 11
by crreed » Thu Aug 11, 2011 11:17 pm

First post

Check Out my instructable for pretty much all the info. I also posted a youtube video of a few tests I conducted with it.

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Thanks for all of the advice. I did notice the air hissing after it left which also indicated to me it was not be realeased quick enough. My question...

11 Replies

6113 Views

Last post by crreed
Fri Aug 12, 2011 3:45 pm
Overkill 1.9'' porting all metal piston cannon.

Last post by pneumaticcannons
Replies: 34
by jhalek90 » Sun Aug 07, 2011 11:28 am
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Piston valve is housed in a 2'' T, the porting is 1.9'' (1.85 actually)
The valve seat to piston diameter ratio is VERY close to 1/1

The pilot is a...

Last post

Holy crap that things insane! Can't wait for higher pressure shots and for you to stick 10 foot barrel on that thing
34 Replies

14009 Views

Last post by pneumaticcannons
Fri Aug 12, 2011 4:29 am
Hammer valve ideas

Last post by wyz2285
Replies: 27
by wyz2285 » Fri Aug 05, 2011 1:11 pm
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Hi everybody :)
In this post I have nothing special to say, I just want to know if anybody have build a hammer valve that can take more than 800...

Last post

Oh, ok. I knew this picture :D
But the trigger from this gun is not suitable for semi auto :roll:
27 Replies

9634 Views

Last post by wyz2285
Fri Aug 12, 2011 3:22 am
2" Golf/Tennis Ball Shoulder Launched Cannon + Damage!

Last post by qwerty*
Replies: 47
by Jabingo19 » Sun Jul 31, 2011 7:43 pm
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Alright, so this is my second pneumatic gun, the first one I made was a 1.5 piston valve gun which was... well, quite frankly, it was crap. Now, I...

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holly cow! great damage pics
47 Replies

30197 Views

Last post by qwerty*
Fri Aug 12, 2011 1:44 am
Using a paintball bottle for charging pneumatic canons..

Last post by jackssmirkingrevenge
Replies: 12
by hoarp001 » Wed Aug 10, 2011 5:57 pm

First post

Hi Everyone,

Been away from the spudgun scene for a while, I used to own UKSGC, a small forum for the UK spudgunners. Unfortunately had to let it...

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As a first stage of a jellybaby yes but not on its own.

Ah, so mine wasn't broken :roll:

Pete, consider Ninja paintball tanks , great value for...

12 Replies

5108 Views

Last post by jackssmirkingrevenge
Fri Aug 12, 2011 12:36 am
.50 Cal Fire Extinguisher Airgun

Last post by Mecke
Replies: 12
by Mecke » Wed Aug 10, 2011 7:49 am

First post

Hey!

Alright, this is like my third airgun but it is the first little bit more serious one;)

I´m an 15 year old boy from sweden and my english...

Last post

Not much more, but somtimes glue sticks ;)
Any suggentions? 8)

and guys how do you add a preview?

12 Replies

9492 Views

Last post by Mecke
Thu Aug 11, 2011 4:19 pm
My new over/under piston gun

Last post by qwerty*
Replies: 18
by roughboy » Fri Apr 17, 2009 10:30 pm
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This is my latest project please leave comments likes/dislikes. The gun is all metal with some brass fittings. I choose PVC for the barrel because...

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wow, that is a beautiful canon.
i really admire the shotgun look.
does your combustion chamber ever get warm after use?
18 Replies

11345 Views

Last post by qwerty*
Thu Aug 11, 2011 3:09 am
Converting a Propane Cylinder

Last post by Technician1002
Replies: 21
by nathanhd123 » Wed Aug 10, 2011 7:36 am
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Ok so here is the cylinder I have got. Its rated to 30 bar, or at least it says 30 bar on the side. How to I convert this to use as an air tank? I...

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The main valve core and the pop off safety valve can both be removed with a tire valve tool. The main valve has a plastic ring with an o ring under...
21 Replies

10737 Views

Last post by Technician1002
Wed Aug 10, 2011 3:47 pm
***Piston Breakage/Accident***

Last post by mattyzip77
Replies: 18
by mattyzip77 » Sun Aug 07, 2011 1:25 pm
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I was shooting my golfball cannon yesterday and my piston broke. Luckilly I was holding it bazooka style, on my shoulder, because when I opened the...

Last post

Anything pvc or plastic, in my opinion, will not last forever!!!
18 Replies

4845 Views

Last post by mattyzip77
Wed Aug 10, 2011 2:41 pm
High pressures!

Last post by Crna Legija
Replies: 5
by Goats spudz » Tue Aug 09, 2011 11:06 pm

First post

please flood me with ideas of how to fill a small tank to about 400psi with a schrader valve :D :EDIT: also to fill a QEV through the pilot

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i have my airgun i just need a pump/compressor and a wooden frame that will look like a HK sl8-6

cool story bro :lol:

but for realz, how big is...

5 Replies

2083 Views

Last post by Crna Legija
Wed Aug 10, 2011 3:31 am
Help Cutting Steel!

Last post by Gaderelguitarist
Replies: 13
by Goats spudz » Sun Aug 07, 2011 1:24 pm

First post

Ok, i have some stainless steel hydraulic fittings. Similar to that, and i need to cut part of it of for a custom part, I have tried a Hacksaw but it...

Last post

Hacksaws and a set of files are all I use for cutting metals. Use the right blade like JSR suggested, and you'll be through it in no time.

90...

13 Replies

4735 Views

Last post by Gaderelguitarist
Tue Aug 09, 2011 8:18 pm
Good C:B Ratio?

Last post by Technician1002
Replies: 8
by Gidney14 » Sat Aug 06, 2011 5:56 pm

First post

Just finished my tennis ball cannon, and realized that my C:B ratio was probably way out of whack. ATM: MY 4'by 2.5 barrel has a volume of 235 CI, my...

Last post

For low pressure, you want larger chambers. For high pressure, if the compressor supply is not an issue, large is good, but has diminishing returns....

8 Replies

2643 Views

Last post by Technician1002
Sun Aug 07, 2011 11:53 pm
Something to use as a air tank?

Last post by saefroch
Replies: 16
by jmez1996 » Sat Aug 06, 2011 8:51 am
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Anybody have a idea of something i could use as a miniture air tank to use as a source for the air on a semi-auto. something that i could mount into...

Last post

would that hold enough air for a decent shot? I'd say no, but run some numbers through GGDT to see if you'd get a significant performance increase...
16 Replies

3620 Views

Last post by saefroch
Sun Aug 07, 2011 10:41 am
Thunderbess, Edit: Major Update!

Last post by Crna Legija
Replies: 34
by Big-E » Sat Apr 17, 2010 7:43 pm
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*Major Update to this project, scroll down through this thread to see the latest revision! Now with a damage vid added!*

Well, it's been a long time...

Last post

Sorry to ask, But what are 20mm brass nipples and an flat end cap rated to(from bunnings). Would the steel malleable end cap and nipples be rated...
34 Replies

20003 Views

Last post by Crna Legija
Sun Aug 07, 2011 6:12 am
Piston Valve Airgun 3/4"

Last post by MRR
Replies: 59
by DerpWithAGun » Sat Jul 30, 2011 10:23 am
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Hey guys I'm new here :)
I just built my first piston valve airgun and it didnt turn out well.
im wondering if anyone can give me some advice.
i dont...

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@MathiasDK They are actually called solder fittings.
59 Replies

21644 Views

Last post by MRR
Sun Aug 07, 2011 2:26 am
The Black Mamba

Last post by sco77
Replies: 30
by spudshot » Mon Feb 14, 2005 8:48 pm
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The Black Mamba

I've completed my black iron cannon, and dubbed it the black mamba, not only because it's black iron, but also because I'm painting...

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125 psi, thats about the rating of the valve, and i dont wanna blow it
I think the QEV would be able to do double that, unless you mean the blow gun...
30 Replies

24223 Views

Last post by sco77
Sun Aug 07, 2011 12:30 am
HPA triggered burst-disk gun

Last post by Lockednloaded
Replies: 11
by Lockednloaded » Mon Aug 01, 2011 1:34 pm

First post

I've had a pressure washer for a while, but I was just recently inspired by a thread on HPA launchers to build a gun to make use of all the pressure...

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I could easily convert it to a hybrid, but I'd really rather keep it a pure pneumatic for the time being. It already launches 1 projectiles faster...

11 Replies

5003 Views

Last post by Lockednloaded
Sat Aug 06, 2011 11:41 am
Semi-automatic Coaxial

Last post by jackssmirkingrevenge
Replies: 10
by Mr.Tallahassee » Fri Aug 05, 2011 3:01 am

First post

I had a random thought :idea: to use a QDV to pilot a coaxial gun and it just kinda ran away from me. :D It's a little simplified but using paint to...

Last post

you see what my life is like ?!

Fear not, I have similar experiences with a host of other topics, I have an 88% full PM inbox (even though I empty...

10 Replies

4124 Views

Last post by jackssmirkingrevenge
Sat Aug 06, 2011 3:36 am
Modified sprinkler valve - epoxy issue

Last post by jsefcik
Replies: 19
by yman » Sat Jul 30, 2011 12:21 pm
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I just finished(maybe) my first pneumatic tennis ball launcher - a simple, over-under design with a modified Rainbird 100-DV valve and blowgun...

Last post

Why is everyone going on about epoxy? The OP needs to take a look at the real problem: His threads.

Properly tapped NPT threads should hold the...
19 Replies

4790 Views

Last post by jsefcik
Fri Aug 05, 2011 1:27 pm
Rain bird sprinkler valve modding questions

Last post by jsefcik
Replies: 5
by jsefcik » Thu Aug 04, 2011 2:08 pm

First post

I just modded a rain bird cp-100, and i clogged up the solenoid holes and the bleed screw hole,

My main question is when i got done putting the the...

Last post

It works good dude

5 Replies

1492 Views

Last post by jsefcik
Fri Aug 05, 2011 11:36 am
Would this valve design work?

Last post by jackssmirkingrevenge
Replies: 9
by sco77 » Thu Aug 04, 2011 4:57 pm

First post

I have some misc spare parts (fully threaded brass tube, pipe nipple, 1/2 > 1/8 reducer, schrader) and was thinking about piecing together a small...

Last post

there wasn't enough pilot flow with schrader

the piston is just a perfect tight fit

I could pilot a 2 valve with a schrader...

9 Replies

1997 Views

Last post by jackssmirkingrevenge
Fri Aug 05, 2011 1:55 am

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