Pneumatic Cannons

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Announcements

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

1201337 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

604783 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

857670 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

1020603 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

1st air gun, copper, 160 psi, boom.

Last post by jackssmirkingrevenge
Replies: 36
by air_dannon » Sun Jul 21, 2013 1:52 am
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1/2 Copper with PC Metal epoxy making up molded areas. Spring-loaded quick release valve. Scuffed up black paint with fake leather over the grip....

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Just paste some on the pump head and it should be more than enough.
36 Replies

11269 Views

Last post by jackssmirkingrevenge
Fri Aug 09, 2013 3:31 pm
Help with a constant air 2" nerf rocket cannon

Last post by tigerblues28
Replies: 6
by brad0896 » Thu Aug 08, 2013 12:18 pm

First post

Hi guys! I have built a couple of pneumatic cannons over the past few years but now I want to step it up a notch. I play milsim airsoft and the game...

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I have an idea in the rough for you but it isnt finished. I am thinking of a little bit of a complicated to make launcher that would employ a burst...

6 Replies

2943 Views

Last post by tigerblues28
Thu Aug 08, 2013 4:22 pm
Automated Semi-auto Golf Ball Cannon

Last post by CannonCreations
Replies: 14
by CannonCreations » Sun Aug 04, 2013 12:33 pm

First post

It has been a long time since I have been on the forum, but I thought I would show you guys one of the things I have built this summer.

I have had...

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Actually one of the reasons I chose to use a pneumatic piston for the elevation is because the piston can absorb the recoil. When the cannon comes...

14 Replies

8961 Views

Last post by CannonCreations
Mon Aug 05, 2013 3:16 pm
ABS Cellular Core test cannon

Last post by Blitz
Replies: 16
by Technician1002 » Thu Apr 16, 2009 12:38 pm
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This is my first Quick Dump Valve cannon. It was built to test the failure of ABS DWV non pressure rated pipe as it is often used in combustion...

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Glad you got out of that one unscathed. Surprising especially since you were in a Prius.

I always thought inverters weren't strong enough for shop...
16 Replies

14790 Views

Last post by Blitz
Mon Aug 05, 2013 12:37 pm
PCP airsoft gun

Last post by wyz2285
Replies: 27
by wyz2285 » Wed Jul 31, 2013 3:36 pm
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Well, my very first time machine a entire gun, so to all these pro machinists out there, please be nice, but critics are appreciated.
I bought a...

Last post

Yeah, should have placed a plastic bag as well...
27 Replies

9891 Views

Last post by wyz2285
Sun Aug 04, 2013 12:12 pm
Newest gun

Last post by Gun Freak
Replies: 1
by fapstallion » Fri Aug 02, 2013 8:40 pm

First post

This is my first gun with an actual trigger. This is a sniper it has amazing range and awesome power. Also its very very quiet its almost silent....

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More pictures? Some specs and info?

1 Replies

1488 Views

Last post by Gun Freak
Fri Aug 02, 2013 9:40 pm
BTB's PCP pistol

Last post by django
Replies: 15
by Brian the brain » Sun Mar 24, 2013 11:30 am
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Well...as I announced earlier, my pump-pneumatic has been cut short and given a new life as a PCP pistol.

It's not yet finished ( looks like it was...

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I was going to say the same thing, Your O- ring probably got damaged from the extremely low temp of the Co2. I'm guessing you can buy O rings that...
15 Replies

19270 Views

Last post by django
Thu Aug 01, 2013 6:08 am
QEV fill & pilot problem

Last post by evilvet
Replies: 22
by evilvet » Sat Jul 27, 2013 12:42 am
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Have mercy on me Wyz and Jack & Tech and everyone else who will flame me for this, but I am f#$^&*! if I can find the right post to answer this.

I...

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PIA but there it is.

New firing plan

Press button on Arduino, digital pin 1 goes LOW
LOW state on pin 1 enables HIGH state on pin 2
Relay on pin...
22 Replies

11999 Views

Last post by evilvet
Tue Jul 30, 2013 5:37 am
Need a Valve Suggestion

Last post by jackssmirkingrevenge
Replies: 4
by wowaguy » Sun Jul 28, 2013 4:30 pm

First post

Hi there, I'm new at this whole pneumatic cannon thing, so I've got a quick question.

I made a cannon with a simple ball valve, and it works great....

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You need a three-way :)

Using a three way valve as a pilot allows filling of the intermediate chamber when at rest, but blocks off the main chamber...

4 Replies

2336 Views

Last post by jackssmirkingrevenge
Sun Jul 28, 2013 10:13 pm
Some newbie questions

Last post by budabob07
Replies: 8
by stklp06 » Fri Jul 12, 2013 11:10 am

First post

Im going to be starting my first build but i have some questions. Im attempting to build a semi automatic pneumatic rifle with a qev and a slide...

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Instead of a slide valve, get a normally open push button 3-way DCV. Like something from here but a bigger size if you need better airflow.

8 Replies

5251 Views

Last post by budabob07
Fri Jul 26, 2013 4:20 pm
Break Barrel Repeating Shotgun

Last post by Gun Freak
Replies: 41
by Gun Freak » Sat Aug 14, 2010 10:35 am
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Me and Reedfe built this a while ago and recently upgraded it to a break barrel, made some shells for it, and made it a repeater. Here is the result!...

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The problem with this is the force required to push the piston with 100 psi in the tank would be enormous. The better alternative to this idea would...
41 Replies

20723 Views

Last post by Gun Freak
Fri Jul 26, 2013 3:06 pm
sprinkler valve wont hold air

Last post by jimmy101
Replies: 12
by deercannon » Sun Jul 21, 2013 10:31 am

First post

Hello everyone sorry i just made this account to ask a question but for the life of me i cannot figure out while my sprinkler valve will not hold air...

Last post

Sounds like you may have had some grit or something in the valve that was keeping it form sealing properly. Sometime flushing with water (since...

12 Replies

4745 Views

Last post by jimmy101
Thu Jul 25, 2013 2:27 pm
extrusion pistol, semi-realistic. new paint job!

Last post by jackssmirkingrevenge
Replies: 18
by jave101 » Mon May 24, 2010 12:22 am
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my kind of coaxial pistol gun
made from aluminium extrusion and a modified blow gun. the barrel has a hole drill down into the lower chamber and into...

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There's no rule against it per se, you're just not supposed to do it.

From The Rules :

Old threads may be kicked up, if you have something...
18 Replies

10971 Views

Last post by jackssmirkingrevenge
Fri Jul 19, 2013 8:07 am
Finished gun, homemade stock & gun - Coaxial - Sniper

Last post by Labtecpower
Replies: 13
by DaxSF » Thu Feb 07, 2013 12:51 pm

First post

Hi guys,

As promised, here is my finished gun including some process pictures (final results at the bottom).

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Last post

Did you ever think about a mono pod that could extend from the front of the stock? Another idea that might work is to try making a hole in the...

13 Replies

11470 Views

Last post by Labtecpower
Fri Jul 19, 2013 4:48 am
Barrel Alignment and Piston Travel Distance

Last post by Technician1002
Replies: 16
by Backyard Pneumatic » Tue Jul 16, 2013 4:09 pm
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Hi All, my first Pneumatic launcher is well under way (a 3 Piston cannon :D ) but after browsing the forums for a while I discovered a few design...

Last post

I've been meaning to ask about this..
Hi All, my first Pneumatic launcher is well under way (a 3 Piston cannon Very Happy )

Is the 3 inch the OD...
16 Replies

12035 Views

Last post by Technician1002
Thu Jul 18, 2013 5:05 pm
My 10 mm power air cannon

Last post by jackssmirkingrevenge
Replies: 5
by Cartujo » Wed Jul 17, 2013 12:08 pm

First post

I have built and check this compressed air cannon with plumbing parts. It is suited for high pressures.

Any idea of the maximum pressure it could...

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Very nice first effort, but now you need a new valve ;)

You can fit a spring to your existing valve:

An exhaust type valve will be faster...

5 Replies

3104 Views

Last post by jackssmirkingrevenge
Thu Jul 18, 2013 1:16 am
Good or bad idea?

Last post by Blitz
Replies: 7
by jsefcik » Fri Jul 12, 2013 11:58 pm

First post

I built a cannon using a dust collector valve nd I understand dead space nd all the stuff but I wanted to connect a small hose after my ball valve...

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Dewey-1, thanks for reminding me of those Asco valves. I still have one from back in 2008 when I got a few off eBay for like 15 bucks each (I think...

7 Replies

3058 Views

Last post by Blitz
Sat Jul 13, 2013 10:41 am
Unique never seen before Pneumatic (i want to show it off)

Last post by Brian the brain
Replies: 6
by MowPow » Mon Jul 01, 2013 10:05 pm

First post

The 4 round air chamber totally surrounds the 2 barrel. The Barrel goes all the way through the air chamber. The reducer at the both ends of the gun...

Last post

You could have placed the valve right behind the coaxial chamber.
Or put a breech inbetween.

That would have taken out a lot of dead space.

Kudos...

6 Replies

3874 Views

Last post by Brian the brain
Tue Jul 09, 2013 1:25 pm
Drop's rifle collection

Last post by Drop that Sound

by Drop that Sound » Mon Jul 08, 2013 11:38 pm

Summertime fun, here's some pics for you guys! I have a gig this Friday shooting confetti, candy, and glow sticks into the sky at an outdoor rave...

0 Replies

5592 Views

Last post by Drop that Sound
Mon Jul 08, 2013 11:38 pm
Hammer Valve (finally)

Last post by Gun Freak
Replies: 26
by Gun Freak » Mon Jun 24, 2013 5:20 pm
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I'm back! I haven't bee active in quite a while. Here's my latest project, both a continuation of my hammer valve project and a final resting place...

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Sounds sweet man. Post it up when you make some progress!
26 Replies

13039 Views

Last post by Gun Freak
Mon Jul 08, 2013 10:33 am
working recoiling artilery gun carriage

Last post by jackssmirkingrevenge
Replies: 8
by iknowmy3tables » Sat Jul 06, 2013 8:31 pm

First post

well it has been awhile since I've been on this site but before the 4th of July I decided it would be appropriate to start another project for me and...

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Very, very cool, kudos! And glad to see you're still knocking about :)

8 Replies

5119 Views

Last post by jackssmirkingrevenge
Mon Jul 08, 2013 1:39 am
Want to build co2 powered rifle.

Last post by choke
Replies: 11
by beastmode986 » Tue Jun 25, 2013 6:34 pm

First post

I haven't logged on in awhile but I plan on building a co2 powered air rifle. I am thinking of break line for one of the barrels but I am planning on...

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Thank you! That's changed the size of the supply to either a 4 or 9 oz tank, and a custom stock to suit. Thanks again! :-)

11 Replies

7486 Views

Last post by choke
Sat Jul 06, 2013 7:05 pm
QEV 5/2 .50 cal sniper rifle (marble)

Last post by django
Replies: 7
by anarchy08 » Tue Jun 25, 2013 3:27 am

First post

Hi all,

So I'v been away for awhile thought id come back and check out the forums once again, and to my delight an array of unique pneumatic rifles...

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Wow!!!, that's Awesome, well done mate, do you lose any air through the Bolt action Mechanism??,ive never got one to seal properly :roll:

7 Replies

4681 Views

Last post by django
Sat Jul 06, 2013 5:35 am
WD 40?

Last post by Blitz
Replies: 18
by ATL Rabbit » Mon Jun 10, 2013 6:51 pm
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Hi! My name is Rabbit from Atlanta Georgia. I build and sell a lot of war machine replicas and I recently started in on a 1/2 scale german wwII 88mm...

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Goes to show ya how inactive I've been, had no idea!
18 Replies

5427 Views

Last post by Blitz
Tue Jul 02, 2013 1:29 am
Small Bore Tease

Last post by jrrdw
Replies: 19
by jrrdw » Wed Jun 05, 2013 3:15 pm
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It ain't named yet, but here is the plug/cylinder combo, piston and brass reducer for piloting. :D

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Set back :? because of a cheap tap! Need good tap or a metric drill bit for the size hole needed to keep from breaking cheap taps. There is just...
19 Replies

5974 Views

Last post by jrrdw
Mon Jul 01, 2013 3:23 pm

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