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

1662233 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

752774 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

980742 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

1163911 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

465467 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

131254 Views

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

Topics

2.5'' piston or dual 1'' metal sprinkler valves

Last post by Ragnarok
Replies: 1
by Erich The Scientist » Sun Jan 14, 2018 11:35 am

First post

My pneumatic cannon I'm building is a 2.5'' piston valve air cannon. I was wondering if a 2.5'' piston valve would have more flow that dual 1''...

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I was wondering if a 2.5'' piston valve would have more flow that dual 1'' sprinkler valves.
Massively so. Flow is proportional to area, not...

1 Replies

1528 Views

Last post by Ragnarok
Sun Jan 14, 2018 3:04 pm
Co-axle project

Last post by jackssmirkingrevenge
Replies: 4
by Pvc primer » Sat Jan 13, 2018 11:40 am

First post

Hey guys. Tomorrow I will be making a co-axle potato gun.

Last post

Go big or stay home ;)

Seconded! Besides, who wants to shovel the driveway...

4 Replies

3432 Views

Last post by jackssmirkingrevenge
Sun Jan 14, 2018 7:03 am
Trigger mech for a hammer valve?

Last post by Alex345
Replies: 29
by Alex345 » Wed Sep 13, 2017 10:37 am
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So I got this cannon lying around here basically 80% done and it can also fire with the necessary preparations, but it's still far away from...

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Update: Fix one leak = find three smaller ones... I'm gonna have to take the entire valve apart and and use the sealant on the actual valve stem and...
29 Replies

22599 Views

Last post by Alex345
Sat Jan 13, 2018 10:30 am
Beginner Pneumatic questions

Last post by D_Hall
Replies: 6
by The_Grangle » Tue Dec 12, 2017 2:26 am

First post

I have been thinking about Pneumatic air guns for a while now and discovered this beauty of a forum only yesterday. I have been putting off making my...

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Just a comment, but the 1/4 copper that connects the chamber to the QEV will severely restrict airflow. This means the performance won't be nearly...

6 Replies

5286 Views

Last post by D_Hall
Sat Dec 30, 2017 7:36 pm
Troubleshooting For Pneumatic Nerf Gun

Last post by Pvc primer
Replies: 5
by Pvc primer » Tue Dec 26, 2017 12:18 pm

First post

Hi guys update on my pneumatic nerf gun, so far it has been working fine but recently there was a leak at one of the joints (where there shouldn't be...

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Few questions and comments;

The pipe is black...I've never seen black pvc in Canada....but I have seen plenty of black ABS pipe. Looks like ABS...

5 Replies

6247 Views

Last post by Pvc primer
Thu Dec 28, 2017 9:16 pm
Pneumatic nerf gun

Last post by jackssmirkingrevenge
Replies: 1
by Pvc primer » Mon Dec 18, 2017 6:07 pm

First post

This is one of my older projects. It is a 2 chamber and a 1/2 barrel which shoots nerf bullets or anything that fits in the barrel. It operates at...

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As was pointed out elsewhere, if that is ABS cellcore then 80-85 psi is definitely putting you at risk of converting your chamber into a pneumatic...

1 Replies

2172 Views

Last post by jackssmirkingrevenge
Thu Dec 28, 2017 7:21 am
Pneumatic Pistol Throttle Valve?

Last post by LordFarquaad
Replies: 2
by LordFarquaad » Sun Dec 24, 2017 4:27 am

First post

Hi all, this forum has been an immense help to me so I have another question regarding a pistol idea I had months ago. I intend on using either 12g...

Last post

This might come in handy for you...you know what the temperature is where you are, this will help you determine the pressure, and also help determine...

2 Replies

2400 Views

Last post by LordFarquaad
Sun Dec 24, 2017 7:20 pm
Help with First Pneumatic Cannon

Last post by LordFarquaad
Replies: 29
by LordFarquaad » Sun Dec 10, 2017 10:12 am
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Hey all!

Relatively new to pneumatics - I've searched past threads endlessly but still haven't found what I exactly want. I'm sorry if any of this...

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Hey matey,

In regards to the butane cans, K-mart has a pack of 3 cans for around $5, all found in the camping/outdoor section ;)
Hammer valves...
29 Replies

11264 Views

Last post by LordFarquaad
Sun Dec 24, 2017 1:11 am
2162fps pneumatic

Last post by Air2theBrain
Replies: 7
by Anatine Duo » Sat Mar 04, 2017 1:28 pm

First post

Apologies if this has been posted here... I did try a search but no match.

I just finished skimming all the pneumatic threads and was fascinated to...

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Sorry to repeat myself but are there no pics of the 2165fps cannon?

The video I posted is the same launcher as the original post.

Ah thanks Jack....

7 Replies

3886 Views

Last post by Air2theBrain
Fri Dec 22, 2017 2:09 pm
My portable bait howitzer/cannon

Last post by hectmarr
Replies: 8
by SteelAvalanche » Mon May 15, 2017 7:28 am

First post

A lot of bait cannon systems I've saw a bipod based. I wanted something a little portable and more fun looking. So I went with a design I called the...

Last post

Very neat work, it looks great! :mrgreen:

8 Replies

5521 Views

Last post by hectmarr
Thu Dec 21, 2017 4:17 pm
Simple Potato Launcher

Last post by Pvc primer
Replies: 1
by Doctore » Sun Sep 25, 2016 9:42 am

First post

Hello everyone. I built this ball valve potato gun for my little brother. It was a fun weekend, we would usually put several potatoes in the pipe and...

Last post

Cool! What size is the barrel?

1 Replies

2821 Views

Last post by Pvc primer
Tue Dec 19, 2017 8:51 pm
Rotation mechanism Revolver pneumatic

Last post by Solar
Replies: 7
by Brain11 » Mon Jun 19, 2017 11:35 am

First post

Hello from Germany!

My name is Thomas and i was reading already a while in the forum an the database and found some great ideas!!!

But for my own...

Last post

The mauser style cam is a very good and reliable way of doing it. You need to make sure than the spring loaded pin does not have a lot of play and...

7 Replies

8279 Views

Last post by Solar
Sat Dec 09, 2017 10:54 pm
Cecchino Pneumatico

Last post by Air2theBrain
Replies: 19
by Air2theBrain » Sat Dec 02, 2017 3:11 am
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Hi everyone, i have to say i'm wrapped to be able to showcase my very first pneumatic cannon.

gif uploading site
I had my first taste of...

Last post

Was hoping to do some plinking..had a regulator break, the other one doesn't regulate. :roll:

I don't normally skimp on stuff like that..but i...
19 Replies

7815 Views

Last post by Air2theBrain
Thu Dec 07, 2017 6:03 am
Bullshark 750 fps marble launcher

Last post by Air2theBrain
Replies: 4
by Anatine Duo » Fri Mar 10, 2017 4:02 pm

First post

The Bullshark!

bullshark right side.jpg

Finally done! Salvaged materials not only from garbage and whatnot, but also from my second ever airgun...

Last post

I've just caught this...the build quality is fantastic well done. :wink:

Aircraft epoxy sounds perfect...hmm. 8)

Impressive fps figures. :)

4 Replies

5650 Views

Last post by Air2theBrain
Sun Dec 03, 2017 6:38 pm
BPR 17, QEV air gun

Last post by Air2theBrain
Replies: 10
by kevin-db » Sun Aug 13, 2017 7:59 pm

First post

Hi guys, I brought new work

Same unit, same mechanism,
but this time I took a little more care of the production process.

I tried to make it feel...

Last post

Looks fantastic well done. : )

10 Replies

3986 Views

Last post by Air2theBrain
Sat Dec 02, 2017 4:03 pm
Help Needed For First Semi-Aiuto Project

Last post by jackssmirkingrevenge
Replies: 60
by Air2theBrain » Mon Nov 13, 2017 8:14 am
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Hi everyone, whilst i have been putting together a qev for a semi-auto project, i realized i had an old Sceptor markerball paintball gun...

Last post

Pleasure, looking forward to seeing it in action :)
60 Replies

21883 Views

Last post by jackssmirkingrevenge
Fri Dec 01, 2017 1:26 pm
Spring piston calculations

Last post by D_Hall
Replies: 2
by Cthulhu » Sun Nov 26, 2017 2:32 pm

First post

Spring piston mechanisms are all over airguns and perform amazingly well, often producing enough force to even hunt with.

I've never seen a spring...

Last post

If you ran some hand calculations....

Start with a volume of air. Adiabatically compress it to some reasonable value... Maybe 250 psi. Use that new...

2 Replies

2577 Views

Last post by D_Hall
Mon Nov 27, 2017 1:12 am
Newbie. First coaxial pnuematic

Last post by Air2theBrain
Replies: 10
by TheCisco_kid » Sun Sep 10, 2017 9:37 am

First post

20170910_091908-800x600.jpg 20170910_091821-800x600.jpg 20170910_091810_001-800x600.jpg 20170910_092003-800x600.jpg

Hi everyone. For my first post...

Last post

That aerosol can got owned...i can't wait to start plinking..i have so many targets i wont know where to start....or will i...? :P

10 Replies

4739 Views

Last post by Air2theBrain
Fri Nov 24, 2017 7:23 pm
M700 QEV air gun

Last post by Jamzearljones
Replies: 10
by kevin-db » Fri Aug 18, 2017 8:45 pm

First post

Hi guys

I'm back :D

Always same process 8)

Last post

If you want to make the scope more authentic you should complete the scope rings. It should look like this.

10 Replies

5137 Views

Last post by Jamzearljones
Tue Nov 21, 2017 1:54 pm
Possible safety valve

Last post by jackssmirkingrevenge
Replies: 10
by golfball_shooter » Fri Nov 10, 2017 11:01 pm

First post

I am building a golf ball launcher that may have as many as 200 other people fire it in a day. I would like to have some form of safety so that the...

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If this is done and no pressure goes to the trigger during fill up, my fear is that the gun may fire when the safety valve is switched and the...

10 Replies

4443 Views

Last post by jackssmirkingrevenge
Wed Nov 15, 2017 6:13 am
paintball gun

Last post by markdem
Replies: 13
by markdem » Tue Aug 01, 2017 9:16 pm

First post

ive been fortunate enough to have access to a fairly well kitted workshop in my spare time and i decided to get my machining skills up with a little...

Last post

unfortunately i have not checked chronograph readings yet. maybe one day ill find a cheap chronograph at a yard sale or on craigslist

13 Replies

8526 Views

Last post by markdem
Tue Nov 07, 2017 4:50 pm
Bolt-action nerf rifle

Last post by lucky_13
Replies: 5
by lucky_13 » Sat Feb 11, 2017 9:28 pm

First post

This is a design for a bolt-action, shell ejection nerf anti-tank rifle.
Basically, I want a homemade Barrett, and I'm using my airsoft hobby as...

Last post

For anyone interested, I have been working on this project, but nothing besides mockup shells and bolt heads physically exist yet. I'm hoping to 3d...

5 Replies

6412 Views

Last post by lucky_13
Tue Nov 07, 2017 6:27 am
6mm caliber coaxial valve cannon, problems with piston

Last post by makspll
Replies: 5
by makspll » Wed Nov 01, 2017 12:09 pm

First post

Hi,

so here is my project:
my problem is that when i pump air in, there is leakage through the front of the barrel, the air doesn't stay in the...

Last post

Use a washer or make a spacer that looks like a washer and match the ID and OD to your cannon. You will have to drill holes in it for air to pass...

5 Replies

3656 Views

Last post by makspll
Fri Nov 03, 2017 6:11 am
Time to break(break action QEV shotgun)

Last post by jackssmirkingrevenge
Replies: 10
by kevin-db » Fri Sep 15, 2017 2:17 am

First post

Hi guys

New project is progress, When I think about what I made so far,

I think that the method of loading one shot and reloading is common, and...

Last post

I see a M107, AA12 and VSS Vintorez... if you keep to your usual standards this should be good :D

10 Replies

6995 Views

Last post by jackssmirkingrevenge
Mon Oct 30, 2017 5:26 am
Incredibly awesome old school super pneumatic

Last post by Zeus
Replies: 3
by Justin Sane » Wed Oct 25, 2017 12:27 pm

First post

Hello everyone I am attempting to recreate something I just stumbled upon because I want one and don't have $4k to just buy one it is called the...

Last post

Very nifty unit.

Circuit wise it's quite trivial. Trigger puts air into a pneumatic cylinder, which moves the bolt across into the valve behind the...

3 Replies

2523 Views

Last post by Zeus
Wed Oct 25, 2017 7:05 pm

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