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

1205867 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

606212 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

858807 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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First post

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

1022099 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

393172 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

100310 Views

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

Topics

:idea: (Torsion)-Spring-powered ball valve

Last post by jackssmirkingrevenge
Replies: 5
by paulwagnerlux » Tue Nov 25, 2008 10:43 am

First post

This is my idea about a new trigger system. The red line is the handle and the green is a torsion-spring from a mousetrap. You pull the trigger to...

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If I would shorten the spring, the valve would not open fast enough.

I think he meant a torsion spring would be more compact than conventional...

5 Replies

1398 Views

Last post by jackssmirkingrevenge
Tue Nov 25, 2008 2:40 pm
Whats the deal with burst disks?

Last post by jackssmirkingrevenge
Replies: 3
by dilweed » Tue Nov 25, 2008 1:36 pm

First post

Hello, I have been thinking about improving power for my airgun the past months. I spent a lot of money on 2 failed attempts on piston guns. I finaly...

Last post

Short of making a valveless launcher, a burst disk is basically as good as it gets.

Have a look here , and this is some comparison between a burst...

3 Replies

1033 Views

Last post by jackssmirkingrevenge
Tue Nov 25, 2008 2:30 pm
Cheap semi-auto

Last post by The Engineer
Replies: 3
by The Engineer » Tue Nov 25, 2008 12:23 am

First post

I posted it here rather than the BB section because it would be easier to use as a standard pneumatic cannon without change barrel size.

Please take...

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OOPS, backwards blowgun, that was a stupid mistake. I forgot to flip it in paint, lol.

My chamber will indeed be quite small, and the source will be...

3 Replies

2465 Views

Last post by The Engineer
Tue Nov 25, 2008 1:00 pm
New guy: My primitive pneumatics

Last post by jrrdw
Replies: 11
by Daltonultra » Mon Nov 24, 2008 10:39 pm

First post

Hey! New guy to the forum, old hand on the combustion side of things.
Last year I tried putting together a pneumatic on the same plans as that John...

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Nice job on the cannon.

Use the edit button if you have more to add and it's the last post ( meaning no one has posted after you ).

11 Replies

5802 Views

Last post by jrrdw
Tue Nov 25, 2008 12:06 pm
What opens faster?

Last post by Gippeto
Replies: 5
by elad311 » Mon Nov 24, 2008 1:50 pm

First post

I was just wandering what opens faster:

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If you mod the blowgun, you would likely need a chrony to tell the difference between the two.

Increasing pilot size beyond a certain point doesn't...

5 Replies

2753 Views

Last post by Gippeto
Tue Nov 25, 2008 10:19 am
My Latest Pnue- The Patriarch

Last post by Daltonultra
Replies: 17
by Jacksa26 » Sun Apr 27, 2008 6:02 am
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Ok everyone, here is my latest project i have been working on.
I have so named it 'The Patriarch' because i see it as the daddy of my cannons haha....

Last post

Valve looks to be a Rainbird 200-PEB.
17 Replies

10107 Views

Last post by Daltonultra
Tue Nov 25, 2008 9:44 am
Pneumatic Smoothbore Shotgun

Last post by frankrede
Replies: 27
by frankrede » Mon Sep 15, 2008 6:38 pm
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Here's a little project I did one night after shooting my mauler cannon and out of boredom I went to Lowes and made it.
It works great!
It has a...

Last post

NICE! Love the upgrade, it that creme, white? More of tan
Looks like you're going for something like desert camo? Yeeup!
27 Replies

10494 Views

Last post by frankrede
Mon Nov 24, 2008 11:21 pm
my new valve

Last post by psycix
Replies: 8
by jor2daje » Sat Nov 22, 2008 9:52 pm

First post

I just went to a thrift store to to look for random junk I might be able to use and I found what looked sort of like qev, it has a solenoid but the...

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Interesting.
Did you add some rubber to make a diaphragm or attach a pneumatic ram?

8 Replies

1770 Views

Last post by psycix
Mon Nov 24, 2008 3:37 pm
Nitrious oxide power?

Last post by seudo411
Replies: 20
by john bunsenburner » Mon Nov 24, 2008 7:51 am
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As most of you i have heeps and heeps of things lying around my house which i barely know they exist, lately i found a box of these cream blower...

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Search the site or browse the how to forum, there is a excel sheet that allows you to calculate how much co2 you need for specific pressure.
20 Replies

5679 Views

Last post by seudo411
Mon Nov 24, 2008 2:24 pm
piston exhaust minimizer

Last post by jackssmirkingrevenge
Replies: 8
by FishBoy » Sun Nov 23, 2008 3:04 pm

First post

Ok, I am always thinking of upgrades and improvement for my pneumatic and I recently thought of a way to minimize piston exhaust (wasted air). Since...

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As above, if you want less wasted air optimise the efficiency of your exhaust system. Keep pilot volume to a minimum and even a schrader valve will...

8 Replies

1722 Views

Last post by jackssmirkingrevenge
Mon Nov 24, 2008 1:07 am
Cam lock

Last post by elitesniper
Replies: 3
by elitesniper » Sat Nov 22, 2008 10:46 pm

First post

Hey guys im here still just to let you know haha.
I just have a question on cam locks as i am making a bbmg similar to neospuds
are cam locks...

Last post

Im planning on using it on the stock end so I can easy load bbs
Is that how neospud connected the cam lock on his commando?

3 Replies

1319 Views

Last post by elitesniper
Sun Nov 23, 2008 12:22 pm
Finally, My final plans!

Last post by starman
Replies: 15
by elad311 » Thu Nov 20, 2008 6:41 am
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Here are my final plans for the pneumatic,
the barrel is 1
the stock is 1
and the camber, is 2 .
All the pieces will be threaded and i already have...

Last post

but i don't want a spud gun that shoots very small things, as my first.

Large things....as in how large? Potatos, golfballs, canned corn,...
15 Replies

5244 Views

Last post by starman
Sun Nov 23, 2008 4:30 am
QEV gun questions

Last post by SEAKING9006
Replies: 11
by Benthehuter » Fri Oct 10, 2008 9:45 pm

First post

I am thinking of making a copper QEV gun and I was wondering what the ratio of the volume of the chamber to the volume of the barrel should be....

Last post

There are better instructions here. Use the search function, the how-to section, or the Wiki.

For some reason, I'm beginning to think the search...

11 Replies

3796 Views

Last post by SEAKING9006
Sat Nov 22, 2008 9:43 pm
2 questions

Last post by TurboSuper
Replies: 22
by theepicmool » Sat Nov 22, 2008 11:14 am
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1. The wiki article for fittings says you can tell if they are pressure rated by how they look etc. To what extent (in PSI) does this mean they are...

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Ok, I checked the pipe I have lying around, and it has both the CSA and NSF ratings on it. It hardly matters because it tells you the exact rated...
22 Replies

4883 Views

Last post by TurboSuper
Sat Nov 22, 2008 6:26 pm
Canadian Pipe

Last post by psycix
Replies: 7
by theepicmool » Fri Nov 21, 2008 3:58 pm

First post

Hey
I can only find CSA (Canadian Standards Assoc) PVC Pipe and regular PVC. I assume this means its pressure rated, but how much pressure?

Last post

READ THE PIPE. it will have a either a pressure rating, or DWV printed on it.
No, not all pipe has that.
As I said I have encountered pipe with...

7 Replies

1842 Views

Last post by psycix
Sat Nov 22, 2008 2:04 pm
Another auto reload idea

Last post by Gippeto
Replies: 16
by tvouthilak » Tue Nov 18, 2008 11:42 pm
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Just wanted to get some opinions on this idea.
-Yes it should work
-maybe
-definitely not don't even try it

Basically when the piston...

Last post

As I see it, the problem is one of surface area.

Your loading piston has too much area for the pressure to act on. Thus it is being slammed open...
16 Replies

6009 Views

Last post by Gippeto
Sat Nov 22, 2008 1:12 pm
Air Compressor Pruchasing Guide

Last post by Davidvaini
Replies: 8
by Davidvaini » Thu Nov 20, 2008 3:05 pm

First post

Hey guys, I just thought of a good idea.

I think it would be nice to have an air compressor purchase guide.

It could list things to look for such...

Last post

Alright guys, as nice as fridge compressors are... Can we now post links to regular air compressors with tanks that are available to buy new.....

8 Replies

2192 Views

Last post by Davidvaini
Sat Nov 22, 2008 1:07 pm
Regulator Troubles

Last post by Hubb
Replies: 7
by skyjive » Thu Nov 20, 2008 2:31 pm

First post

So after much scouring of the internet I can't seem to find an affordable high-pressure co2 regulator. I'm looking to make a high-pressure copper gun...

Last post

A CO2 regulator is a CO2 regulator. The Stabilizer will work either way, and so will any other CO2 regulator. Just make sure it is CO2 compatible. A...

7 Replies

2380 Views

Last post by Hubb
Fri Nov 21, 2008 8:02 am
Sealing joints

Last post by Ragnarok
Replies: 12
by john bunsenburner » Mon Nov 17, 2008 4:21 pm

First post

Ok i just got my self a propane soldering thing. It holds great but is not air tight. I tried using silicone but ti pops off at higher pressures and...

Last post

BTW Ragnarok use one of those joints for the breech on HEAL I think I think.
I did, but I gouged the ring of solder out of one half of it first -...

12 Replies

2732 Views

Last post by Ragnarok
Thu Nov 20, 2008 2:19 pm
Winter Break Project - I want you guys to check out my idea

Last post by jackssmirkingrevenge
Replies: 11
by ToppRamen » Wed Nov 19, 2008 6:04 pm

First post

Hey guys, I'm back. I'm the guy with the curly hair.

I have done as much research as possible and I can honestly say, now, that my last cannon......

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I like version 2.0 better :) 2:1 is already overkill as a ratio, but as long as you're not pumping it up manually and don't care a lot of your...

11 Replies

2842 Views

Last post by jackssmirkingrevenge
Thu Nov 20, 2008 12:56 am
3 shots shotgun design

Last post by Demon
Replies: 17
by Demon » Mon Nov 17, 2008 6:40 pm
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I just learned then my friend was playing real airsoft with his friends...

Now i wanna play and i thought for about one day and got this final...

Last post

I buyed 1 week ago a portable(the size of a pen) tire gauge and i just have to put it on the schraeder valve to know how much psi there is in the...
17 Replies

4575 Views

Last post by Demon
Wed Nov 19, 2008 7:00 pm
My first pneumatic - updated with damage pics

Last post by Crna Legija
Replies: 27
by cerberus » Mon Apr 02, 2007 7:32 am
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Well, I've never built a pneumatic before but thought I'd give it a go. I've almost finished this one, just need to drill and tap a hole in the plug...

Last post

nice gun for a first real clean. by eny chance do you play silkroad
27 Replies

13327 Views

Last post by Crna Legija
Wed Nov 19, 2008 6:47 am
Bolt action help.

Last post by hansdg1
Replies: 4
by SpudsMcGee » Wed Nov 12, 2008 8:36 pm

First post

First, does anyone know what size pipe I would need to have so that it will slide over a 1.5 sch 40 barrel?

Two, does anyone know the best way to...

Last post

Hey if you get a working prototype of a bolt action cannon, could you share the design with me. I am basically trying to build a t-shirt launcher for...

4 Replies

5472 Views

Last post by hansdg1
Wed Nov 19, 2008 12:05 am
Rainbird Sprinkler Valve

Last post by keep_it_real
Replies: 1
by theepicmool » Tue Nov 18, 2008 8:53 pm

First post

Hey
Sorry for being a post-hog today, I'm just a day away from a build and I'm still making a parts list. My question is if anyone has experience...

Last post

yep. That one is good. I've used it a couple of times and it's nice.

1 Replies

1571 Views

Last post by keep_it_real
Tue Nov 18, 2008 10:49 pm
Pressure Rated Pipe

Last post by MrCrowley
Replies: 10
by theepicmool » Tue Nov 18, 2008 4:53 pm

First post

Is it safe to use pipe that isn't pressure rated but that is sch40? If so does PVC/ABS make a difference? I just think it will be difficult to find...

Last post

What about wrapping in duct tape/drywall tape? I've seen it on some others and it seems that it would keep the shrapnel together in the event of an...

10 Replies

2132 Views

Last post by MrCrowley
Tue Nov 18, 2008 8:34 pm

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