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

1663299 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

753138 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

981041 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

1164214 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

465641 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

131290 Views

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

Topics

Help determing FPS?

Last post by vng21092
Replies: 6
by vng21092 » Sat Aug 22, 2015 3:03 pm

First post

Hey guys, I just got finished putting together my 4.5mm x 24'' barrel and decided to test out the FPS. According to GGDT, I should be in the 950+...

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So... I downloaded the app this morning and on the first shot, it gave me a reading of 635 FPS. Which I'd say is pretty O.K because my calculations...

6 Replies

3045 Views

Last post by vng21092
Mon Aug 24, 2015 5:15 pm
Valve help needed

Last post by jsefcik
Replies: 9
by jsefcik » Wed Aug 19, 2015 11:32 pm

First post

I recently purchase a 2.5 inch dust collector valve made by goyen , now i have 2 that are 1.5 inch that work perfeclty i hook up the my air hose,...

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I did install a ball valve into the chamber but i dont think it is releasing quick enough as it should

Whaaaat :lol: seriously I don't understand...

9 Replies

11307 Views

Last post by jsefcik
Sat Aug 22, 2015 5:22 pm
Good ol' Boomer - damage pics and videos

Last post by n05gr0th
Replies: 6
by n05gr0th » Fri Aug 14, 2015 12:53 pm

First post

This is my second air gun. I call her Good ol' Boomer. She can blast through nearly two 2x4s using lead and steel balls and will embed the same ammo...

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@ Ragnarok - it's no coincidence. Your cannon along with Dave_224's 600 psi launcher were my main inspirations!

I believe it's the 1/2 , I can only...

6 Replies

9361 Views

Last post by n05gr0th
Fri Aug 21, 2015 10:46 pm
The B*tch; 30mm anti-everything cannon *WIP*

Last post by Alex345
Replies: 2
by Alex345 » Mon Aug 03, 2015 3:45 pm

First post

Hey guys, long time no see here! Took my big old stationary cannon apart and decided to use it's big clunky valve for something new and smaller ....

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Project scrapped, delete please.

2 Replies

2466 Views

Last post by Alex345
Tue Aug 18, 2015 5:06 pm
Need A Golf Ball Cannon Built For Me

Last post by jrrdw
Replies: 5
by McGolf13 » Thu Jan 22, 2015 7:34 pm

First post

I am looking for someone to build me a cannon that shoots golf balls from the tee box to the green 450 plus yards I am willing to pay someone to...

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dammit jesse this topic was six months old.

He hasn't been here in about that long, what a coincidence! :D

5 Replies

6302 Views

Last post by jrrdw
Tue Aug 11, 2015 7:29 am
Does volume matter???

Last post by grumpyoldman
Replies: 18
by eli_ess » Mon Jul 27, 2015 8:48 pm
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Okay. This might be a very, very, very amateurish question. But I have to know ..

:arrow: :arrow: :arrow: :arrow: :arrow: :arrow: :arrow:

I've...

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Just made a little video to show you all the power of my latest 7-foot-long model!

Cool! I love discharges! :D
18 Replies

10259 Views

Last post by grumpyoldman
Mon Aug 10, 2015 2:49 am
Anybody has link to such an adapter?

Last post by vng21092
Replies: 3
by vng21092 » Fri Aug 07, 2015 4:38 pm

First post

Hey guys, I'm looking for a CGA 320 (Paintball tank thread) Female to NPT (1/2'' or 1/4'', could be male / female) adapter. I looked on Amazon but...

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thats exactly what I'm looking for, thanks a lot buddy, but I'll probably end up getting a remote line. D_Hall thanks for the link but the site only...

3 Replies

4195 Views

Last post by vng21092
Sat Aug 08, 2015 11:46 am
how to determine the best chamber?

Last post by Ragnarok
Replies: 6
by jsefcik » Fri Aug 07, 2015 1:58 pm

First post

Im onto my next build using a 2.5 inch pneumatic relief valve( qev on steriods) now my recent one was a 1.5 inch valve i used 2 inch pvc as a...

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Does the shape of the chamber make any difference?
Yes, but it's trivial in most cases, and not simple to calculate (GGDT doesn't even try to model...

6 Replies

5310 Views

Last post by Ragnarok
Sat Aug 08, 2015 9:23 am
palmers pursuit and australia question

Last post by matti
Replies: 1
by Baldyforks » Tue Aug 04, 2015 7:19 am

First post

hey guys,
Just wanting to know if anyone in Australia has ordered any regulators from palmers pursuit shop and if so, did they had any issues. I'm...

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Not to Australia, but thinking about Palmers end, I have ordered to Finland and I had no problems with either Palmers or with finnish customs.. but...

1 Replies

1570 Views

Last post by matti
Wed Aug 05, 2015 1:30 pm
2.5 inch piston port questions

Last post by matti
Replies: 1
by jsefcik » Tue Aug 04, 2015 9:57 pm

First post

Im back into building guns, does anybody have a piston port 2.5 inch? If so im wondering what kind of power you guys are getting out of it being that...

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I have 3.54 port in pistonvalve hybrid, I have also tested it with 8bar pressure with air and yes you will get lot of power from it :D

GGDT would...

1 Replies

2620 Views

Last post by matti
Wed Aug 05, 2015 12:33 pm
Need pump help!!!!!!

Last post by mark.f
Replies: 4
by eli_ess » Thu Jul 23, 2015 5:23 am

First post

Hi guys,

As you can see, I'm brand new here.

I have built two air guns so far- one made of PVC (which can take up to about 80 PSI) and my newest...

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Not trying to discount what mark said, but I would recommend against using the gfci as a switch. They do wear out and using it in that manor could...

4 Replies

2565 Views

Last post by mark.f
Sun Jul 26, 2015 4:54 pm
Looking for rifle dimensions

Last post by farcticox1
Replies: 6
by farcticox1 » Wed Jul 01, 2015 5:20 pm

First post

Any body know where I can find some dimensions of real world rifles, I am rebuilding my sniper airsoft and can't seem to find a good stock length, so...

Last post

It's looking like this now

6 Replies

3629 Views

Last post by farcticox1
Sun Jul 19, 2015 7:07 pm
First Pneumatic Rifle Set Up

Last post by Doodmens
Replies: 1
by INC Jack » Thu Jul 16, 2015 3:29 pm

First post

Hey Guys,

I'm realy new in this forum and I'm glad to found it, alot of you build awesome Rifles ^^.
I'm planning to build my first...

Last post

Hello Jack,

First of all, welcome to the spudfiles!

You have great ambitions and your sketch look professional.
I take you have acces to advanced...

1 Replies

1339 Views

Last post by Doodmens
Fri Jul 17, 2015 11:50 am
Prototype 16 shot revolver

Last post by Speakerguy
Replies: 6
by Speakerguy » Sun Jul 12, 2015 9:06 pm

First post

Hi, just stumbled across this forum a week ago and wish I found it much earlier.. I started my project but sort of hit the brakes.. I'm thinking I'll...

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well today I finished it up.. shes big and heavy but I think I can use copper and aluminum to lighten this up a lot. Hopefully it will be smaller as...

6 Replies

4026 Views

Last post by Speakerguy
Wed Jul 15, 2015 9:00 pm
QEV + Slide Valve Combo (62 Bar / 900 PSI)

Last post by vng21092
Replies: 2
by vng21092 » Tue Jul 07, 2015 3:33 pm

First post

Not really a new build, but I did get a few new parts and I think I'm done, this is not coming apart. The only thing I would change on this is the...

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not CO2, PCP pump, but yeah, I'll see what I could whip up, just gotta zero in the scope first :wink:

Edit: Here it is, still gotta adjust the scope...

2 Replies

3898 Views

Last post by vng21092
Wed Jul 08, 2015 3:33 pm
First spudgun using lots of paintball parts

Last post by Gun Freak
Replies: 3
by ToyBox » Tue Apr 21, 2015 6:40 am

First post

I've been lurking and reading through various builds to help me prepare for this build.

The goal: A spud gun that will fit inside a guitar case that...

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Then I checked it and discovered that it was over 300psi going into my tank

You're very lucky sir!

About what you said about the pipe having to...

3 Replies

3265 Views

Last post by Gun Freak
Fri Jun 26, 2015 2:49 pm
'O' ring use for sealing pistons etc.

Last post by Ianbuckwell
Replies: 3
by Ianbuckwell » Sat Jun 20, 2015 2:13 pm

First post

Hi, just background the inner diameter of the outer tube is approx.19mm. The design is part of a blow forward design using either nylon piston but...

Last post

Many thanks to you both, you have given me all the information I need.

3 Replies

7266 Views

Last post by Ianbuckwell
Sun Jun 21, 2015 7:26 am
Pump Action Reloaded

Last post by KAMERADEN
Replies: 32
by farcticox1 » Thu Jun 20, 2013 11:51 am
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So here is my much awaited (by me) pump action, firing 1/4 steel BB's. Magazine holds 20, slide mechanism moves about 1/2 and as an added bonus if...

Last post

So here is my much awaited (by me) pump action, firing 1/4 steel BB's. Magazine holds 20, slide mechanism moves about 1/2 and as an added bonus if...
32 Replies

20991 Views

Last post by KAMERADEN
Thu Jun 18, 2015 11:03 am
introduction and need some advice.

Last post by Doodmens
Replies: 3
by spudnoob21 » Tue Jun 16, 2015 4:41 am

First post

hi guys,

its my first time making a post on this forum.
ive searched he internet to find information and this was the only place with good infos....

Last post

For a tank I'm just using a copper tube with a diameter of 22mm ( standard plumbing pipe)

3 Replies

6592 Views

Last post by Doodmens
Thu Jun 18, 2015 4:47 am
Qev tank

Last post by Gleedaniel13
Replies: 3
by Ansen » Fri Jan 16, 2015 6:45 am

First post

Hi i am building a qev spud so it can be a semi-auto i need help concerning the air tank , what size should it be ?
Can someone could link me a post...

Last post

I will also recommend this suggestion The size of your air tank depends on the size of your barrel. I think a good rule of the thumb is to have your...

3 Replies

3065 Views

Last post by Gleedaniel13
Wed Jun 17, 2015 10:51 pm
my "super" quality air rifle.

Last post by spudnoob21

by spudnoob21 » Tue Jun 16, 2015 3:24 pm

hi guys,

im new here and i wanted to show you an airgun i made some time ago. its nothing special and its not very safe nor is it quality. after one...

0 Replies

7381 Views

Last post by spudnoob21
Tue Jun 16, 2015 3:24 pm
Which is quicker, QEV + solenoid or ball valve with spring?

Last post by Ianbuckwell
Replies: 6
by Doodmens » Tue May 19, 2015 8:05 am

First post

Hello,

If you've read the title, you know my dilemma. If you didn't, don't worry, I'll repeat it later. I'm fairly new to using QEV's for an airgun,...

Last post

Have a look at Bill Gilmour vis on Youtube of air cannons, ball valve weapons can be very powerful, although he uses very long barrels, iirc he timed...

6 Replies

7291 Views

Last post by Ianbuckwell
Fri Jun 12, 2015 2:56 am
True Bolt Action 6mm Cannon

Last post by gpopovic
Replies: 11
by cammyd32 » Wed May 06, 2015 9:47 am

First post

I was going to wait until I had finished this build properly to release it to the world, but what with the recent talk of death of spudding I decided...

Last post

Great work! The sound it makes when operating the bolt is just perfect!

Regarding the wood finish, don't use just lineseed oil, it's commonly called...

11 Replies

13750 Views

Last post by gpopovic
Tue Jun 09, 2015 4:14 am
Pressure regulators

Last post by Gippeto
Replies: 16
by Juggernaut12121 » Wed Jan 21, 2015 8:29 pm
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Firstly, sorry for the stupid question :oops:
I've been looking around for a little while for a pressure regulator for a co2 setup, output pressure...

Last post

But 14000+ positives in the same time frame? Wish I had 14000 customers. :lol:

Doesn't matter...fellow linked to a flow regulator anyway...useless...
16 Replies

15945 Views

Last post by Gippeto
Tue Jun 02, 2015 8:28 am
Cheap compressor solution

Last post by Gun Freak
Replies: 19
by vng21092 » Tue Jan 20, 2015 8:36 pm
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I'm sure some of you have thought this up before but just in case... I bought a cheap portable air compressor off amazon (the small 12 volt ones you...

Last post

I have maxed my fridgy out twice I think, and it simply stalled. It will not start again until the pressure on the output side is relieved. It still...
19 Replies

19754 Views

Last post by Gun Freak
Fri May 29, 2015 11:53 pm

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