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

1201315 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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First post

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

604772 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

857666 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

1020597 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

392538 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

100024 Views

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

Topics

Experimenting with a REAL DIY vortex cannon!

Last post by squeak
Replies: 47
by highvoltagefeathers » Mon Jan 07, 2013 3:55 am
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:idea:

You've all heard of the airzookas and the vortex-generators they make out of trash cans and some canvas, but that all bores me a bit...

I...

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oh yeah, i have been in a few airsoft gearboxes before,
but its just the issue of the barrel length and head speed, or even the sheer volume inside,...
47 Replies

50412 Views

Last post by squeak
Tue Nov 05, 2013 6:05 pm
easy darts for a 0.5 inch barrel

Last post by dart guy
Replies: 4
by air_dannon » Thu Oct 31, 2013 11:45 am

First post

Playing around with ammo and this combo is pretty solid for my pirate pistol.
- yellow twist-on wire connectors are quite snug in 1/2 copper
-...

Last post

Use the cone method, it is much more economical and is also destructive as well.

4 Replies

2707 Views

Last post by dart guy
Mon Nov 04, 2013 3:49 pm
Airsoft gun plans.

Last post by Chuckh93
Replies: 12
by jake321 » Sun Oct 14, 2012 1:56 am

First post

I have done up some plans for an airsoft gun tell me what you think. I need some 6mm ID aloy tube dose anyone know where to get that? The blue lines...

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Hey mate im also from au. If you've completed this gun or have any further plans let me know cause i need a little help, cheers.

12 Replies

7284 Views

Last post by Chuckh93
Sun Nov 03, 2013 9:31 am
Semi/Full Auto Paintball Prototype

Last post by 1nxtmonster
Replies: 19
by 1nxtmonster » Fri Oct 18, 2013 10:46 am
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A piston valve full auto/semi auto paintball gun. Onboard air tank gets about 15 good shots, but I hope to use a backpack air supply instead. Very...

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Tested with new air tank and regulator. With tank at 70 PSI and regulator set to 50, I got about 30 shots at 50 PSI. 70-80 PSI is the butter zone...
19 Replies

7896 Views

Last post by 1nxtmonster
Sat Nov 02, 2013 6:34 pm
qev problem unsolve. is now solved.

Last post by bravootome
Replies: 12
by bravootome » Tue Oct 22, 2013 11:29 am

First post

this is a picture with a new 6mm multi shoot QEV, bolt action that shoots bb's.
The problem is that when i shoot (over 15 bar) the boom sound comes...

Last post

Are you sure your piston valve/diaphragm is not leaking air into the pilot? Also, is the pilot valve consistent?
i am very sure, the pilot is...

12 Replies

6132 Views

Last post by bravootome
Sat Nov 02, 2013 11:32 am
Schrader Valve Flow Cv

Last post by Gleedaniel13
Replies: 2
by cammyd32 » Thu Oct 17, 2013 3:37 pm

First post

Unable to produce the tests to generate my own data, I've been scouring the internet for some time looking for some raw data that I could use to...

Last post

Unable to produce the tests to generate my own data, I've been scouring the internet for some time looking for some raw data that I could use to...

2 Replies

3373 Views

Last post by Gleedaniel13
Mon Oct 21, 2013 8:47 pm
Semi and full auto valve idea

Last post by finland66
Replies: 10
by finland66 » Thu Oct 17, 2013 2:34 pm

First post

Hello

I was discovering PolarStar Fusion Generator and I got idea of semi and full auto valve MAYBY based to PolarStar but I'm not sure, becose I...

Last post

Yes I know that those solenoids are really expensive.
Can you recomend some other ammo?
BTW: I could use 4.5 bbs but barrel is difficult to find/make.

10 Replies

8366 Views

Last post by finland66
Mon Oct 21, 2013 9:37 am
First build. Need advice on performance

Last post by halestormx
Replies: 7
by halestormx » Sun Oct 20, 2013 12:00 am

First post

Hi guys i have built my fist air powered Nerf mini vortex football launcher.
The build is as follows.
2 end cap
18 x2 PVC chamber
2 -1 1/2 reducer...

Last post

thanks everyone that helped out on this build!
once i modded that sprinkler valve it was day and night difference. been shooting this thing for about...

7 Replies

3947 Views

Last post by halestormx
Sun Oct 20, 2013 6:35 pm
Slide valve pressure

Last post by jackssmirkingrevenge
Replies: 6
by tigerblues28 » Sat Oct 19, 2013 12:14 am

First post

Hey all, haven't been on for a while, working on a few new guns.

I was wondering how much psi a slide valve can hold. I want to use a euro-qev and...

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And just attach a trigger to the slide and I'm good to go? Correct?

Pretty much

6 Replies

2460 Views

Last post by jackssmirkingrevenge
Sat Oct 19, 2013 2:11 pm
Help!, cant find a specific thread

Last post by tigerblues28
Replies: 13
by django » Thu Oct 10, 2013 9:00 am

First post

I seen a thread on here about 2 weeks ago and ive tried for days to find the thread, some member on here knocked together a 6mm pneumatic that was...

Last post

Is the qev on backwards?

Stupid mistakes can sneak up on you

Nick

13 Replies

5153 Views

Last post by tigerblues28
Sat Oct 19, 2013 10:55 am
Multi projectile Barrel design, Ideas?

Last post by Talk
Replies: 2
by Talk » Thu Oct 17, 2013 6:08 pm

First post

I’m not gluing PVC: 1 so I can use other PVC pipes that I’ll modify to shoot different sizes and different kinds of projectiles like: Grapes,...

Last post

All doubts clear, Thank you JSR :)

2 Replies

2507 Views

Last post by Talk
Fri Oct 18, 2013 4:07 pm
Spadulux

Last post by bravootome
Replies: 3
by -X3- » Wed Apr 04, 2012 6:08 pm

First post

Hi all,
I'm proud to show you le last air rifle I've created (2 years ago at least, I'm a bit lazy since returning to studies)

Air supply is in...

Last post

Hi all,
I'm proud to show you le last air rifle I've created (2 years ago at least, I'm a bit lazy since returning to studies)

Air supply is in...

3 Replies

3140 Views

Last post by bravootome
Wed Oct 16, 2013 11:57 am
New guy, Science project spud gun

Last post by micah16858
Replies: 10
by micah16858 » Sat Oct 12, 2013 7:19 pm

First post

I'm doing a science project for school using a pneumatic launcher. I will be using different length barrels to see what length effectively launches a...

Last post

I made a piston valve design. It's a barrel sealing type, with the air tank under the barrel. The air tank is a 4 1/2' long 3 pvc, and the barrel is...

10 Replies

3145 Views

Last post by micah16858
Mon Oct 14, 2013 6:36 pm
First build, steam-punk style ball valve rifle.

Last post by finland66
Replies: 9
by Spectrabox » Sun Sep 22, 2013 7:35 pm

First post

Hi spudfiles, new user here, here is my first build. After trying to make a piston cannon and it not working (air leaking from barrel), I decided to...

Last post

Go to the forum and select correct show case area for you cannon and click new topic button witch is almoust top left corner. Hopeso you can...

9 Replies

5781 Views

Last post by finland66
Mon Oct 14, 2013 2:36 pm
Aluminum cylinder for Eclipse

Last post by Solar
Replies: 2
by Solar » Sat Oct 12, 2013 10:25 pm

First post

Finally got a metal solution for the cylinder in the Eclipse. This weighs two ounces less than the acetal one with lightening holes. It was made on a...

Last post

Lol. Don't exactly have an answer for you Jack. Should only be a few hundred each in production. It solves the thermal issues and will increase the...

2 Replies

1710 Views

Last post by Solar
Sun Oct 13, 2013 8:43 pm
Need some advise

Last post by jackssmirkingrevenge
Replies: 5
by cstru18 » Sat Oct 12, 2013 1:49 am

First post

Hey there everyone I'm wanting to build a 1/2 piston valve. But I'm having some trouble on finding a male tee to use. I'm just not sure if I'm...

Last post

a female tee and threaded nipples

Awww say that again! :D

5 Replies

3757 Views

Last post by jackssmirkingrevenge
Sun Oct 13, 2013 5:07 am
How do I fix this valve stuck open?

Last post by Candrews9
Replies: 10
by Candrews9 » Thu Oct 10, 2013 1:01 pm

First post

This valve no longer closes when I introduce air.
What is the appropriate way to troubleshoot this?

Last post

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I think I got this gun from SpudTech.com.

I opened the valve and found this held into the valve by a spring. Not...

10 Replies

5111 Views

Last post by Candrews9
Sat Oct 12, 2013 3:42 pm
Some Indoor High Powered Spud Craziness

Last post by PeteS
Replies: 2
by PeteS » Fri Oct 11, 2013 3:37 pm

First post

I just test fired some of what I consider crazy powerful potato cannons. They may be wimpy compared to some of the stuff folks here have built,...

Last post

Big bores shouldn't really be tested indoors, my former bedroom and test range was liberally ventilated with holes and fragments... if you're going...

2 Replies

5813 Views

Last post by PeteS
Sat Oct 12, 2013 9:16 am
Inverter for Fridge Compressor?

Last post by Technician1002
Replies: 6
by PeteS » Sat Oct 05, 2013 6:34 am

First post

I am thinking about trying to use my fridge compressor where there is no AC power. Does anyone have an idea of how many watts a fridge compressor...

Last post

Frost free fridges include the wattage of the defrost heater. This may overstate the compressor requirements.

6 Replies

5687 Views

Last post by Technician1002
Fri Oct 11, 2013 10:33 am
Backwards Piston

Last post by PeteS
Replies: 9
by PeteS » Fri Oct 04, 2013 4:56 pm

First post

Is there any reason a piston in a coaxial should not be designed to be put in backwards from the way they usually are? By backwards I mean with the...

Last post

The good part about such a piston is that if you use a flexible material such as rubber, the piston acts as a check valve. With pressure inside of...

9 Replies

4353 Views

Last post by PeteS
Sun Oct 06, 2013 8:27 am
Bondo fiberglass resin to make custom parts?

Last post by jackssmirkingrevenge
Replies: 1
by air_dannon » Sat Oct 05, 2013 4:02 pm

First post

Hey All,

I have a question about making custom parts for my next gun.

I don't have the tools to make beautifully machined aluminum, and was...

Last post

dangerous if done wrong.

if done right, nothing to worry about :)

1 Replies

1445 Views

Last post by jackssmirkingrevenge
Sat Oct 05, 2013 8:18 pm
Air Hose Coupler as Pilot Valve

Last post by Brian the brain
Replies: 2
by PeteS » Tue Oct 01, 2013 9:33 am

First post

Not sure if others have done this or not, but...
If you grind off the tip of the male plug to where it clicks in but does not open the valve, you can...

Last post

Anyone who has ever used a similar QD in combination with a QEV has had the valve pop apon disconnecting the pressuresource...

What you are...

2 Replies

1298 Views

Last post by Brian the brain
Thu Oct 03, 2013 11:01 am
Semi Auto Ideas for a 3/4 inch Piston Valve?

Last post by 1nxtmonster
Replies: 5
by 1nxtmonster » Wed Oct 02, 2013 3:41 pm

First post

Hi guys. This is my first spudfiles post. I have recently built a piston valve paintball gun. It is a 3/4 inch piston valve with about a 100 cubic...

Last post

Would a ball valve before the piston valve that fills a small firing chamber work? Could you just crack the ball valve and let it auto fill?

5 Replies

2170 Views

Last post by 1nxtmonster
Thu Oct 03, 2013 6:43 am
Pneumatic copper pistol having odd issue at 400+ psi.

Last post by dart guy
Replies: 8
by air_dannon » Tue Oct 01, 2013 8:38 pm

First post

Hi All,

I built Gippeto's stirrup hand-pump and love it.

I'm having an odd occurrence happen when I pump the copper pistol to 400+ psi range? I'll...

Last post

yeah i kind forgot im losing my mind

8 Replies

2454 Views

Last post by dart guy
Wed Oct 02, 2013 2:53 pm
AC Compressor Disappointment

Last post by POLAND_SPUD
Replies: 4
by PeteS » Tue Oct 01, 2013 9:39 am

First post

I just salvaged an AC compressor and was disappointed to find that it stalls out at about 60 PSI. Should I junk it or is it of some use.

I guess I...

Last post

JSR has already said everything - apparently there was a reason it was thrown away

4 Replies

1751 Views

Last post by POLAND_SPUD
Tue Oct 01, 2013 8:14 pm

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