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

916017 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

448702 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

421166 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

626307 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

330517 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

79453 Views

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

Topics

HPA Pump Concept

Last post by Gippeto
Replies: 4
by Alster370 » Fri May 27, 2011 11:31 am

First post

I would like to know if pump like this could work as intended :?

I forgot to add this to the diagram but the main piston is 25mm and the smaller...

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Simple two stage pump...

4 Replies

1700 Views

Last post by Gippeto
Fri May 27, 2011 10:00 pm
Small Coax Pilot Problem

Last post by tony48
Replies: 20
by tony48 » Fri May 20, 2011 8:07 pm
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I've recently put together a coax piston cannon with a 2 chamber, 3/4 barrel and 1 piston (all PVC sizes). My piston is only a millimeter or two...

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Your pilot volume is probably hurting performance as well. Why not place the blowgun where the ballvalve is and use a trigger linkage, and then put...
20 Replies

7898 Views

Last post by tony48
Fri May 27, 2011 8:31 pm
Fridge compressor problems!

Last post by Technician1002
Replies: 15
by pipeboyswe » Thu May 26, 2011 9:38 am
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First post

Hi i just got my hands on a fridge compressor and i cant get to run.
I have connected:
blue to the upper N
brown to L
and yellow/green to ground
What...

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For over 200 PSI, your fastest rate will be 2 stage. Use 3 in parallel feeding into the 4th which boosts the pressure.

High voltage discharge? I...
15 Replies

6319 Views

Last post by Technician1002
Fri May 27, 2011 10:24 am
First QEV update 5.6!!!

Last post by Doctore
Replies: 3
by drunpal » Wed May 25, 2011 11:36 am

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Here is my first qev gun i have ever done. Im going to chance the chamber to a metal one, propably tomorrow.

Valve: 3/4 QEV
Chamber: 3/4 galvanized...

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amazing work!!!!
post damage pics :D

3 Replies

2004 Views

Last post by Doctore
Fri May 27, 2011 3:42 am
Metro gun

Last post by streetfire
Replies: 19
by The_Guerilla_Guy » Sun May 15, 2011 10:01 am
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Hi guys,
I've been searching for airguns lately and found this piece from MEtro 2033 (great game btw)

I wonder if any of you has an idea how i...

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ahh the tihar which literally means 'the silent one' 15 round mag fully auto until the pressure runs out :? firing at a max of 12 bar (in game) i am...
19 Replies

10282 Views

Last post by streetfire
Wed May 25, 2011 1:43 pm
"Snowy Savanna" -6mm bullpup-bolt-action (first po

Last post by streetfire
Replies: 18
by nature-boy » Thu Dec 09, 2010 10:56 am
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Hey Guys!

(skip to SPECS, if you are only interested in the gun!)

Although this is my first post, I'm neither new to the hobby, nor to this great...

Last post

nicest gun i seen in my life!
18 Replies

14334 Views

Last post by streetfire
Wed May 25, 2011 8:02 am
Fire extinguisher connection help

Last post by jackssmirkingrevenge
Replies: 18
by streetfire » Tue May 24, 2011 10:08 am
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does anyone know what what kind of connection i need for a Fire extinguisher tank? its internal size is 28,5 mm the outside is 33,5 mm here's a pic
18 Replies

6999 Views

Last post by jackssmirkingrevenge
Wed May 25, 2011 5:11 am
aluminium prechanged pneumatic progress

Last post by saefroch
Replies: 11
by urgle the danish cow » Fri May 20, 2011 4:43 pm

First post

so im obviously not any where near done with this but i will not be able to work on it over summer and will have to wait until fall.
total work...

Last post

Sig Figs :D

11 Replies

3068 Views

Last post by saefroch
Tue May 24, 2011 5:07 pm
Designing A Pneumatic

Last post by DYI
Replies: 6
by Slayergem » Mon May 23, 2011 7:07 pm

First post

Good day mates!
In my many attempts of downloading the GGDT pneumatic simulator I came up empty, not tutorials nor how to's can help my unavoidable...

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Running as an admin typically works for that issue. Note that if you're using Vista for some reason, you may need to disable UAC completely.

6 Replies

1457 Views

Last post by DYI
Tue May 24, 2011 9:12 am
Suppressor baffle design - single assembly

Last post by jackssmirkingrevenge
Replies: 31
by FighterAce » Fri Jan 28, 2011 5:33 pm
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I'm thinking about building a suppressor with this kind of internals...

Would this kind of design be suitable for a pneumatic? Its going to be...

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Digging this up because I stumbled upon a silencertalk thread which contains similar concepts and might be of interest.
31 Replies

47583 Views

Last post by jackssmirkingrevenge
Sun May 22, 2011 8:26 am
Paintball QEV

Last post by Alster370
Replies: 7
by Alster370 » Fri May 20, 2011 12:47 pm

First post

As im near the end of my current project, I have been reflecting on how I could improve it when I make V2. So naturally im seeking out a higher...

Last post

Ah, thats a shame. oh well. I will probably look into getting a steel piston valve milled instead.

7 Replies

2041 Views

Last post by Alster370
Sat May 21, 2011 3:42 pm
PVC Semi Auto Valve Idea

Last post by shardbearer
Replies: 10
by shardbearer » Fri May 20, 2011 3:53 am

First post

So I was trying to develop a semi auto, low pressure (50-100 psi), semi auto valve that was self contained (only one piece), cheap, around $10, and...

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Anyone have opinions on neoprene washers sandwiched between metal ones vs floating o rings vs non floating? And metal washer piston vs PVC?

And I am...

10 Replies

4583 Views

Last post by shardbearer
Sat May 21, 2011 3:10 pm
replicating hand slide valve help

Last post by PVC Arsenal 17
Replies: 5
by Major Collins » Fri May 20, 2011 12:23 pm

First post

upgrading from a ball valve and would like to replicate a hand slide valve ,like this one

how should i go about it?

also this same slide valve as...

Last post

Check out this thread . It should be just what you're looking for.

Consult this page for a nice diagram of how they work.
(slide check = slide valve...

5 Replies

1770 Views

Last post by PVC Arsenal 17
Fri May 20, 2011 11:42 pm
Which preassure destroyed your fridge compressor?

Last post by mark.f
Replies: 5
by Tobin » Fri May 20, 2011 12:26 pm

First post

I did accidently raised the preassure in my compressor to high and the cylindertop gasket blew at maybe 60-65bar, i forget to open a ballvalve... I...

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I remember Mr. maggotman's daisychain quite well. Good times. :lol:

5 Replies

2160 Views

Last post by mark.f
Fri May 20, 2011 4:04 pm
APG-2 (Air Propelled Grenade, version 2)

Last post by motoman807
Replies: 33
by Secret Squirrel » Sat Feb 26, 2011 9:11 pm
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For the entirety of my short spudding career, my main project has been developing a shoulder fired launcher for airsoft use. My first cannon ever,...

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You've inspired me to make something like that. Simple but very cool and effective :wink:
33 Replies

15339 Views

Last post by motoman807
Fri May 20, 2011 12:30 pm
co-axial with mag idea

Last post by shardbearer
Replies: 5
by Major Collins » Thu May 19, 2011 11:54 am

First post

alright heres my idea i could only draw it up in 2d becuase drawing this in 3d was far too difficult
the legend is
blue is piston , green is bolt...

Last post

Or this one.

5 Replies

2285 Views

Last post by shardbearer
Fri May 20, 2011 4:10 am
first ball valve air gun

Last post by streetfire
Replies: 9
by streetfire » Thu May 19, 2011 1:34 pm

First post

this is my first rifle (that works!) it fires homemade darts at a max of 30 bar

pic here

the gun

sight for the show :shock:

28 bar can go...

Last post

If you're feeling creative you can spring-load the ball valve with a bit of effort.

The above design is for a semi-auto repeater, if you reverse...

9 Replies

7355 Views

Last post by streetfire
Fri May 20, 2011 2:24 am
spring loading a air chamber

Last post by jackssmirkingrevenge
Replies: 7
by Major Collins » Wed May 18, 2011 11:03 pm

First post

for simple ball valve air guns you add a simple spring loaded piston.When you pressurise the airgun it is forced to the back and upon firing it...

Last post

Fair points, I agree the idea is wholly impractical compared having a stronger chamber and higher pressure.

7 Replies

1623 Views

Last post by jackssmirkingrevenge
Thu May 19, 2011 11:57 pm
M21E600 semi automatic bullpup marble cannon.

Last post by Crna Legija
Replies: 18
by Crna Legija » Thu Apr 21, 2011 11:16 am
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iv been building this on and off for about 2months, its not finished just yet but fully functional. only needs to be sanded and painted

SPECS...

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It looks nice and compact, fitting of the name bull pup.I feel like true semi auto is taken for granted now a days, but congrats on getting it...
18 Replies

11374 Views

Last post by Crna Legija
Wed May 18, 2011 11:00 pm
Cant get my piston sealing face air sealed

Last post by Tobin
Replies: 5
by Tobin » Tue May 17, 2011 1:58 am

First post

Since I changed my piston from a melting glue piston till a aluminium piston (because the glue piston didnt handle more than 24bar) i cant get my...

Last post

Problem solved, the rubber gasket was attached with a bolt one tha same way the most gaskets are, on the other side of the piston i had drillet holes...

5 Replies

2362 Views

Last post by Tobin
Wed May 18, 2011 2:13 pm
Initial construction

Last post by Meat
Replies: 14
by Tony.Knaak » Mon May 11, 2009 11:33 pm

First post

Greetings, spudders.

I just finished my initial construction on my second pneumatic cannon. I test fired it approximately 30 times to make sure...

Last post

Whoa, HPA is going to be more consistent especially with temp. changes, but
c02 has advantages as well.. For example, not everyone has a way of...

14 Replies

7415 Views

Last post by Meat
Wed May 18, 2011 1:52 pm
prototype ballistic knife

Last post by jackssmirkingrevenge
Replies: 96
by Crna Legija » Wed Apr 27, 2011 6:46 am
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Jsr was talking about using a quick connect to make a ballistic knife in another thread(cant find it), so i gave it a go. Its quite powerful at only...

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I also ground the first 2cm of the blade about 1mm thiner and it made a big improvement in penetration of the same wood

Pressure = Force/Area ;)
96 Replies

33615 Views

Last post by jackssmirkingrevenge
Wed May 18, 2011 10:07 am
Fetch toy, tennis ball launcher

Last post by Moonbogg
Replies: 8
by MyDogLikeTennisBalls » Thu May 05, 2011 12:28 pm

First post

The first one I built used a huge 4 chamber, and only one sprinkler valve to dump air to the barrel. Lots of wasted air. That is the first video....

Last post

LOL @ failed fetch attempt! I had a similar situation when I launched a potato for a guy with a shotgun to shoot the spud as skeet, and he just...

8 Replies

6049 Views

Last post by Moonbogg
Mon May 16, 2011 10:31 pm
First Airgun

Last post by Alster370
Replies: 108
by Alster370 » Mon Feb 21, 2011 9:50 am
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Hi guys this is my first build so go easy on me. javascriptemoticon(':D')
Im looking for some feedback which will hopefully make my next build a lot...

Last post

I just realised when testing for leaks that I can use the pressure release on my pump as a pilot for my gun. It works very effectively, and instead...
108 Replies

33852 Views

Last post by Alster370
Mon May 16, 2011 12:01 pm
Valve CV for a 1/2 inch bore cannon?

Last post by High-PSI
Replies: 4
by High-PSI » Mon May 16, 2011 8:01 am

First post

Hey Guys,

I am building an all metal 1/2 inch pipe (.60 bore) cannon with my son. It will be firing Delrin slugs through a 30 inch barrel at 300...

Last post

I actually already fired a bench test rig with this valve and slug (though with a 4 foot barrel). It fired a 18 gram metal tipped slug clear through...

4 Replies

1080 Views

Last post by High-PSI
Mon May 16, 2011 8:45 am

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