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

1125871 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

552748 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

821510 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...

Last post

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

967621 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

375111 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

92480 Views

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

Topics

PCP queries.

Last post by inonickname
Replies: 13
by inonickname » Mon May 18, 2009 4:05 am

First post

Well whether or not you know I'm planning on building a PCP rifle (for the soul purpose of plinking, if I hunt I use more powerful weapons)(when I...

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Wonderfully simple.

I'll just do some basic calculations concerning force behind the valve stem, strength of the spring and valve weight. That's not...

13 Replies

12931 Views

Last post by inonickname
Tue May 19, 2009 7:00 am
Bored on a Friday night...

Last post by Technician1002
Replies: 5
by jmccalip » Fri May 15, 2009 11:02 pm

First post

So I made this. UHMW 3 piston. 10 and 3/4 oz.

Grrr, I need to return this stock to Mcmaster. I bought the wrong size.

I'm still waiting on the...

Last post

So I made this. UHMW 3 piston. 10 and 3/4 oz.

That's sweet. Can't wait to see the video of the finished cannon. One quick question, what is the...

5 Replies

2030 Views

Last post by Technician1002
Tue May 19, 2009 6:24 am
Piston Powered Water Accelerator

Last post by Janiekx
Replies: 13
by brplatz » Wed Mar 11, 2009 6:15 pm

First post

Hello All,

It has been a while since I have posted a cannon but I had the parts and an idea.

It works fairly well but there is always room for...

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I heard that soap will make bottle rockets more powerful. Could imagine the same for water guns.

If you fill a water rocket with both water and...

13 Replies

7053 Views

Last post by Janiekx
Tue May 19, 2009 2:38 am
blowgun with high pressure?

Last post by JDP12
Replies: 10
by JDP12 » Mon May 18, 2009 9:33 am

First post

Hey all-

i was recently examining my blowgun last night and was surprised at how simple it really was..

is there any reason it shouldn't work with...

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@ Lenta-

Its not the threads that are really an issue (well one of them is that I have to tap to NPT but that's not really a problem), the issue is...

10 Replies

2772 Views

Last post by JDP12
Mon May 18, 2009 1:56 pm
Sprinkler Valve Split Plastic?

Last post by maverik94
Replies: 7
by GeekFreak » Sun May 17, 2009 12:14 am

First post

I just bought a Rainbird CP-100 today for my pneumatic valve. When I was tapping the hole for the blowgun/nipple, I split the plastic. I filled the...

Last post

sorry, I just looked at the jb weld package and it says 3960, sorry for the misinformation, for some reason I had 8000 psi in mind.

7 Replies

2627 Views

Last post by maverik94
Sun May 17, 2009 4:19 pm
4in coaxial cannon UPDATE:Stand!!!

Last post by deathbyDWV
Replies: 13
by deathbyDWV » Sat May 16, 2009 4:50 pm

First post

Hi guys this is my first post on spudfiles. I have been looking at this website for a while now and finally got to post something. This is the the...

Last post

Ok i'll try the GGDT again. Also i bought some cheap knock-off brand foam rockets and the tail and fins just get ripped off as soon as it leaves the...

13 Replies

12109 Views

Last post by deathbyDWV
Sun May 17, 2009 10:25 am
pneumatic help

Last post by Mike_Hunt0420
Replies: 23
by Mike_Hunt0420 » Mon May 11, 2009 6:37 pm
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I am working on an 800 psi repeater. i'll be using co2, I found an 800 psi regulator, and need help designing a piston valve and triggering mechanism...

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I am sorry if I am comming across as less then pleasent but the site I orderd my tank from assured me it can be filled to 2000 psi. After reserching...
23 Replies

6378 Views

Last post by Mike_Hunt0420
Sun May 17, 2009 2:24 am
first pneumatic

Last post by freder
Replies: 4
by freder » Sat May 16, 2009 7:20 am

First post

Hey guys,

this is my first pneumatic ever :lol:
I first tried to built it with a piston but that kinda didn't seel :(
so used a simple ballvalve...

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thanks. It's hard/expencive to get a sprinklervalve here so I think I´m going to try to seal the piston valve thing and give that an other try....

4 Replies

3579 Views

Last post by freder
Sat May 16, 2009 2:34 pm
chamber size?

Last post by brettdotcom14
Replies: 10
by brettdotcom14 » Wed May 13, 2009 1:47 am

First post

im going to be using 4 pvc for the chamber

my barrels are all 5' long and 3/4,1 1/2, 2, and 2 1/2

i read that 1:1 ratio is good and i think 24...

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i plan on making it a over under

im now thinking i might want to make a piston valve..is a piston valve cheaper then a 2 sprinkler valve and...

10 Replies

3002 Views

Last post by brettdotcom14
Fri May 15, 2009 5:32 pm
My first Pneumatic

Last post by covey12
Replies: 12
by Kris.Is.Awesome » Wed Aug 02, 2006 6:39 pm

First post

Hey guys, I finished my first pneumatic the other day, and I've been shooting it non stop. So far, I fill up to about 50 Psi (I fill up a small air...

Last post

i bet that valve was expensive

12 Replies

5576 Views

Last post by covey12
Fri May 15, 2009 1:26 pm
how to make a high pressure manual pump request

Last post by boom_o_matic_2.0
Replies: 15
by boom_o_matic_2.0 » Mon May 11, 2009 7:33 pm
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I've searched the How To section front to back and there is no thread on how to make a high pressure manual air pump for pneumatic cannons. I saw...

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so no way to be able to pump it up to high pressure quickly? well poo. I was thinkin about co2 sometime soon anyway. lol
15 Replies

5476 Views

Last post by boom_o_matic_2.0
Thu May 14, 2009 9:09 pm
Is a short one as good as a long one ? (honestly)

Last post by LeMaudit
Replies: 13
by LeMaudit » Wed May 13, 2009 1:53 pm

First post

:-D Couldn't resist...

I need again your advises, to sort out all the ideas that cross my mind :roll:

I am considering using long chambers with...

Last post

Yes, I think I understood. But thanks for the clarification.

I was wondering if the loss you describe would be significant for a relatively low...

13 Replies

2740 Views

Last post by LeMaudit
Thu May 14, 2009 6:50 pm
Good smallbore bb/ copper pipe fits?

Last post by thedeathofall
Replies: 4
by spencetron » Wed May 13, 2009 8:58 pm

First post

I have been curious about the QEV/popoff combo for a long time now, and since recently it was proven quite effective, I have decided to jump on the...

Last post

I recently ordered a few things off Mcmaster. One was 0.25 inch steel ball bearings. 250 for like $3.50 (USD). These fit perfectly into 9/32 OD brass...

4 Replies

2351 Views

Last post by thedeathofall
Thu May 14, 2009 11:24 am
Quick Opening Valves?

Last post by Technician1002
Replies: 30
by spudnutbutthut » Sun May 10, 2009 4:51 pm
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what are some good quick opening valves that would be 2in and realatively cheap? If anyone has a modified sprinkler valve theyd be wiloing to sell?

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You have to not only look at the valve, but also how much proximal volume is available to the valve/barrel.. theoretically your gun would actually...
30 Replies

7718 Views

Last post by Technician1002
Wed May 13, 2009 7:20 pm
Shooting around corners.

Last post by THUNDERLORD
Replies: 18
by LeMaudit » Mon May 11, 2009 2:43 pm
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Nah… I don’t want to shoot around corners really, just a way to grab your attention :-D

But I still have a related question:

Say I have a ball...

Last post

...Works for me. In any case, have another one...

That barrel attachment was on a History channel documentary, and it quite often caused the...
18 Replies

4948 Views

Last post by THUNDERLORD
Wed May 13, 2009 12:00 pm
Quick help needed on a pop-off piloted piston setup (to-scal

Last post by Technician1002
Replies: 9
by Leonard » Mon May 11, 2009 10:56 am

First post

Hello Guys! Been a long time since I posted, but i'v been lurking around...

After a terrible fail on trying my luck at a blowback hammer valve setup...

Last post

I understand your point, but i would rather have a setup that would work at any given pressure.

Pop off valves is not the best trigger if that is...

9 Replies

2920 Views

Last post by Technician1002
Tue May 12, 2009 6:51 pm
piston not opening, help me please

Last post by covey12
Replies: 17
by covey12 » Mon May 11, 2009 1:09 pm
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my piston valve will not open when i pilot it it, all of the air comes out of the pilot, which is a 1/4 inch ball valve, on a 2 piston, when i push a...

Last post

come on now were not in middle school anymore

Hey, I'm in middle school, but for only 9 more days...
And by the way you type, most people would...
17 Replies

3701 Views

Last post by covey12
Tue May 12, 2009 1:28 pm
High pressure gun --> silencer video update

Last post by thedeathofall
Replies: 46
by MRR » Sat May 02, 2009 10:54 am
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I bought a new bike pump today that is rated to 230psi :twisted:
It's called SKS Race Compressor

So I felt impelled to build a new high...

Last post

gotcha...

I took another look and relized that you can just slide the anchors onto your already made darts to increase accuracy... that is, if they...
46 Replies

21270 Views

Last post by thedeathofall
Tue May 12, 2009 12:31 pm
Homemade high pressure pump

Last post by far_cry
Replies: 2
by Gunner » Tue May 12, 2009 4:03 am

First post

Hey! I quickly drew this scetch and I have little question from it.

Because that pump should work when you push the piston down, but how about then...

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floating O ring like what the Technician1002 draw exactly

2 Replies

3067 Views

Last post by far_cry
Tue May 12, 2009 6:45 am
scaring a friend

Last post by VH_man
Replies: 20
by cannon monkey » Sat May 09, 2009 7:45 pm
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i have a small air tank with a 1/4 inch hose and a blow gun and a bag or small water ballons
can any body help me find a way to scare my friend
i...

Last post

Nuff Said :D
20 Replies

5725 Views

Last post by VH_man
Mon May 11, 2009 5:52 pm
first piston valve sniper

Last post by Crna Legija
Replies: 3
by Crna Legija » Sat May 09, 2009 7:41 am

First post

hi all this is my first piston valve gun i have made. it is a 3/4inch tee with a 3/4inch connector wich holds my hot glue piston in it i have a bit...

Last post

thanks for the nice comments.

Mitchza89
By no means the prettiest gun but I love the layout and the streamline look.

Very good job on it mate More...

3 Replies

2000 Views

Last post by Crna Legija
Mon May 11, 2009 8:25 am
Coin Gun?

Last post by inonickname
Replies: 34
by Mitchza89 » Thu Sep 27, 2007 6:59 am
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G'day guys,

I've had the idea for a long long time of making a coin gun. I'd love to shoot some sharpened 5 or 10c peices like frizbies at a few...

Last post

Edit: sorry, gimped into gravedigging. Kill this post.

(stuffed up, I had all the threads open and I thought this was the other coin gun? thread)
34 Replies

9885 Views

Last post by inonickname
Mon May 11, 2009 5:41 am
break down law

Last post by psycix
Replies: 8
by ssgnort » Sun May 10, 2009 8:01 pm

First post

A single 12gram co2 nerf launcher.

Last post

Nice build. Good job putting the valve inside it and giving it such a flat look. Good job on the notch system too.
How much pressure does it get from...

8 Replies

4882 Views

Last post by psycix
Mon May 11, 2009 5:32 am
Most powerful AirCannon Ever...

Last post by spencetron
Replies: 17
by jeepkahn » Fri May 08, 2009 10:53 am
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In response to a claim that someone made in a locked thread about a soon to be built cannon that would be the most powerful ever....

They've got...

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None of those toys have anything on the Venom.

While I thinkthe Venom is pretty sweet, I don't think it will throw 7lb projctiles 3 miles, or 300lb...
17 Replies

6248 Views

Last post by spencetron
Sun May 10, 2009 9:37 pm
piston valve barrel sealer

Last post by Technician1002
Replies: 9
by far_cry » Sat May 09, 2009 5:32 pm

First post

i had asked a while ago for my old uncompleted coax , that how much piston have to open, this is the old topic

so my question is , is this same...

Last post

so my question is , is this same role of opening gap (d/4 of the barrel) also for a barrel sealer ? or is dos not matter
D/4 only counts if:
-Air...

9 Replies

2139 Views

Last post by Technician1002
Sun May 10, 2009 7:55 pm

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