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

1125889 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

552766 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

821517 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

967638 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

375113 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

92482 Views

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

Topics

piston valve being annoying and other things

Last post by inonickname
Replies: 9
by ramses » Sun Apr 26, 2009 4:08 pm

First post

So, as the title might have lead you to believe, I have built a piston valve. The piston is Oringed, and slides in a smoothed out 3/4 galvanized...

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With your sealing of the barrel and the rubber being dragged out I would recommend replacing the rubber with a tap washer rubber.

The rubber they...

9 Replies

3119 Views

Last post by inonickname
Mon Apr 27, 2009 12:59 am
French air canon : The 404 not found

Last post by Sparkie
Replies: 7
by Sedalc » Sun Apr 26, 2009 7:10 pm

First post

Hello , I'm french. Sorry for my English but I use the voila translator therefore I hope that you will understand the bulk.

Total length : 1m20...

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Looks like a great plinker. What sort of accuracy?
You need to mount the scope better but looks like you have it all set up for good fun.
I like...

7 Replies

4184 Views

Last post by Sparkie
Sun Apr 26, 2009 10:20 pm
Parts on McMaster-Carr

Last post by inonickname
Replies: 6
by moonmaster » Sun Apr 19, 2009 9:46 am

First post

First off, I would like to say, Wow, this is an amazing site. I'm thirteen now and have been lurking from when I was eleven. I thought it would be...

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Not really. First of all, that's an American price. Second of all, you would need to factor in postage. Third of all, they hardly even ship out of...

6 Replies

2223 Views

Last post by inonickname
Sun Apr 26, 2009 4:14 am
The Longbow. Updated with Cammo!

Last post by AdiabaticManiak
Replies: 27
by AdiabaticManiak » Fri Apr 17, 2009 10:03 am
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This is a rifle I made. Basic concept, quite self explaining. But I assure you, this ones fun to shoot with.

Features:
Barrel: 1m, 10mm copper...

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yes. As it is today; i shoot the steel balls; with a very good fit.
I can stop bullets in the middle of the barrel (while held horizontal) just bye...
27 Replies

10161 Views

Last post by AdiabaticManiak
Sun Apr 26, 2009 2:46 am
Another Barrel Sealer

Last post by inonickname
Replies: 14
by Mogwog » Sat Apr 25, 2009 7:47 am

First post

Firstly, I'm a new user to this site and I've been looking around on it for help on how to go about just building a stock standard barrel sealer as...

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Yep. You could use a block of wood or plastic between barrel/chamber then fasten it with hose (radiator) clamps, string, tape, wire..anything.

Or...

14 Replies

5614 Views

Last post by inonickname
Sun Apr 26, 2009 2:21 am
Help finding special pilot valve

Last post by POLAND_SPUD
Replies: 7
by Eddbot » Sat Apr 25, 2009 5:37 pm

First post

Hey everyone, I'm having trouble finding a pilot valve that fits my needs on my own, so i was hoping to enlist the help of all those with more...

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yep spool valves are the best option

I agree that buying a 1/4 one is a better idea because they have much higher flow

buying it on ebay might take...

7 Replies

3134 Views

Last post by POLAND_SPUD
Sat Apr 25, 2009 9:17 pm
High Pressure Pistol!

Last post by Moonbogg
Replies: 31
by elitesniper » Fri Apr 03, 2009 10:08 pm
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Hey guys! Been a while since i have been around but still know i am still with you guys! Here is a small project i did for kicks and grins, features...

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Does it work? I want to see it shoot something.
31 Replies

14500 Views

Last post by Moonbogg
Sat Apr 25, 2009 4:38 pm
for sale

Last post by rp181

by rp181 » Sat Apr 25, 2009 1:44 pm

Hello all, I have had this for awhile, planning to use it, but I never did, and never will....
Its a 1.5 sprinkler valve, pre modded. A leak was...

0 Replies

2120 Views

Last post by rp181
Sat Apr 25, 2009 1:44 pm
Propane in Pneumatics?

Last post by jook13
Replies: 8
by boom_o_matic_2.0 » Fri Apr 24, 2009 9:22 pm

First post

Ok before I say anything...I DID USE THE SEARCH. I looked for hours and couldnt find anything so I m asking.

is it ok to use propane in a pneumatic...

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This is another good one to look at.

8 Replies

2237 Views

Last post by jook13
Sat Apr 25, 2009 1:16 pm
Better safe than sorry? Large pilot volume.

Last post by Carlman
Replies: 4
by jmccalip » Fri Apr 24, 2009 11:53 pm

First post

I am making a 3 barrel sealing piston valve with 2 porting. My piston weighs 15oz(aluminum).

I have expensive PVC parts, and I don't want to mess...

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So you post a useless thread? It doesnt matter get a mod to clean it up

4 Replies

1382 Views

Last post by Carlman
Sat Apr 25, 2009 12:51 am
The Wasp - Updated April 25th.

Last post by Mitchza89
Replies: 27
by Mitchza89 » Wed Apr 22, 2009 10:59 pm
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Gday Spudders,

Well here it is, my latest little creation. From what I've posted in previous threads, there really isn't much to add here. I felt...

Last post

Thanks a lot mate. I'll have to get some recent pics of it.
27 Replies

11989 Views

Last post by Mitchza89
Fri Apr 24, 2009 9:36 pm
Various questions about my copper nightmare!

Last post by Sparkie
Replies: 13
by Sparkie » Thu Apr 23, 2009 8:03 pm

First post

G'day all,
I have a few questions which I hope you guys might be able to answer.
I have a scuba tank and the first stage brings down the pressure to...

Last post

Thanks guys.

forget about shrader valves... buy a male quick connect fitting and put it instead of the nozzle on the blowgun (it has threads right...

13 Replies

2667 Views

Last post by Sparkie
Fri Apr 24, 2009 4:12 pm
multi shot gun

Last post by airheadnoob
Replies: 17
by airheadnoob » Tue Dec 09, 2008 2:15 am
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new gun ill update info
credit to andremat
1 ball valve
blowgun valve:
.it has a pressure gauge
.a second valve
it has ten joints

i haven't got a...

Last post

ty i tried a foot pump and it got up to 20 psi ............. so i returnd it :S
ill get a shock pump /;D
17 Replies

11293 Views

Last post by airheadnoob
Fri Apr 24, 2009 3:54 pm
A few piston questions.

Last post by psycix
Replies: 19
by iisthemuffin » Sat Jul 12, 2008 8:17 pm
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Ive seen a few diagrams and in them all it seems like air is supossed to be able to go around the piston so that the built up air will slam the...

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Use a pipe inside the T for the piston to slide in. You will need a slightly larger T or smaller piston for that though.
19 Replies

4858 Views

Last post by psycix
Fri Apr 24, 2009 1:55 pm
qev full auto paintball

Last post by c11man
Replies: 18
by c11man » Fri Apr 17, 2009 9:51 pm
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i have a 3/4inch qev and want to use a popoff to make it full auto. i have a 150psi compressor and would use like a 120psi popoff. the chamber is...

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shut up about you and your tanks... JK

i might be able to buy a used empty one from the local fire department (friends dad is a fire fighter) i am...
18 Replies

9366 Views

Last post by c11man
Thu Apr 23, 2009 9:44 pm
3" Sprinkler Gun (Bigger)

Last post by Carlman
Replies: 13
by Carlman » Sat Apr 18, 2009 2:40 pm

First post

Ok guys i give in.

I am going to construct a new gun with the 3 poly valve to store in a shed at my 5 acre block as what i plan to construct will...

Last post

my camry is running a bit rough... :twisted:

13 Replies

2871 Views

Last post by Carlman
Thu Apr 23, 2009 8:47 pm
1/2 galv steel gun

Last post by Clutch
Replies: 19
by Clutch » Sun Apr 19, 2009 9:16 pm
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Hi i was at Lowes and had a bit of an impulse to make a galvanized steel gun. I bought:

1/2 x 32in black steel(for barrel)
(2) 1/2 elbows galvanized...

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Hmm, Thanks for all the help.

And it IS seamed pipe. But it should still hold a lot.
19 Replies

7067 Views

Last post by Clutch
Thu Apr 23, 2009 11:09 am
QEV+popoff experiment - update: NOW WITH AMMO!

Last post by SPG
Replies: 104
by psycix » Mon Mar 30, 2009 1:20 pm
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I has it! :D
Click here to watch the video!!!

1/4 QEV with popoffs, 6mm barrel (It will get an blowforward bolt soon)

The little brother...

Last post

You can include some of the cursing though, that always makes me laugh.
104 Replies

41981 Views

Last post by SPG
Thu Apr 23, 2009 4:19 am
Marble gun help

Last post by Technician1002
Replies: 14
by Kai » Tue Apr 21, 2009 6:13 pm

First post

Hi, im a noob and i am working on a marble sniper, as you can see in the image below, it isn't completed. anyway, this thing will probably go up to...

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Okay, I'm trying GGDT again, i need help though

-What is dead volume, flow coef, seat diameter, ?

-I have a 3/4 watermaster sprinkler valve, is...

14 Replies

4251 Views

Last post by Technician1002
Wed Apr 22, 2009 7:37 pm
portable multishot pistonvalved cannon

Last post by charizzardd
Replies: 10
by charizzardd » Tue Apr 21, 2009 4:53 pm

First post

the whole goal is to achieve several shots with this puppy... Im thinkin the main chamber will have an airtight piston, sealed with an o ring most...

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thanks for all the positive feedback!!!! im making a basic gun as it is cuz its my first piston valve gun... i havent finished that one yet... im...

10 Replies

5446 Views

Last post by charizzardd
Wed Apr 22, 2009 3:36 pm
Mitch has semi/full auto!

Last post by Mitchza89
Replies: 22
by Mitchza89 » Tue Apr 21, 2009 10:41 pm
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Well I finally got it going. My idea behind it not working was correct, I had too much flow going into the compressor hose. I just turned it down and...

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Haha you make a fair point. as far as making a nice secure ammo feed, I think a male T with compression fittings will be my best best. Should stop it...
22 Replies

7705 Views

Last post by Mitchza89
Wed Apr 22, 2009 7:04 am
Gas Operating Ammo Feeder (Semi Auto)

Last post by THUNDERLORD
Replies: 24
by MRR » Mon Mar 02, 2009 1:33 pm
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This is my idea of a gas operating ammo feeder.

Well it's nothing new (many weapon use it --> Ak47, BAR...) but I was asking myself if it works...

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Old post but I was thinking again of venting spent, inert gasses from a hybrid with a blow forward bolt attached, an this post's concept came to...
24 Replies

6587 Views

Last post by THUNDERLORD
Tue Apr 21, 2009 11:34 am
The Internals of a QEV.

Last post by Mitchza89
Replies: 18
by Mitchza89 » Tue Apr 21, 2009 12:04 am
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Well, Mitch has finally got himself a QEV. Mitch being Mitch, I had to open this baby up and see what was inside. I was always curious how it was...

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Subsonicspud, I got mine from the same place. I went into the shop though. It's only 10 min from my place. I was so annoyed when I couldn't get full...
18 Replies

5505 Views

Last post by Mitchza89
Tue Apr 21, 2009 5:32 am
quick question

Last post by SubsonicSpud
Replies: 4
by colty-bear » Sun Apr 19, 2009 6:37 pm

First post

how do you hook a quick connect nipple to a 3 in end cap like this

this is what nipple looks like

it has to hold 150 psi without leaking and...

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Make sure you place it through a double section in the end cap after the cap is in the pipe. If you want to be able to remove it, drill out a hole...

4 Replies

1354 Views

Last post by SubsonicSpud
Sun Apr 19, 2009 6:48 pm
My new "sniper like" gun

Last post by sssssbooom
Replies: 19
by sssssbooom » Mon Apr 13, 2009 5:12 pm
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I have been working on this gun for a long time now. And I think it turned out really good. The main chamber is sch 40 2in and about 20 long all of...

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I figured out a good way to block the stock. when I was making mine this week I took a PVC plug that fit into the tee and sanded off the shoulders on...
19 Replies

9090 Views

Last post by sssssbooom
Sun Apr 19, 2009 4:24 pm

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