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

905638 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

441266 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

388212 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

618429 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

328758 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

78545 Views

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

Topics

"Valveless" piloted o-ring detent concept

Last post by mako
Replies: 10
by jackssmirkingrevenge » Mon Jan 08, 2018 5:26 am

First post

Just an idea I wanted to commit to pixels, basically the projectile blocks the chamber, retained by an o-ring that simultaneously prevents it from...

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That first design schematic looks like it might be super touchy to tune. But this last one looks perfect for my next build; bolt action precharged...

10 Replies

6107 Views

Last post by mako
Wed Apr 11, 2018 8:25 am
Taking wagers on orbital Chef Boyardee

Last post by Daltonultra
Replies: 2
by Daltonultra » Tue Mar 27, 2018 4:13 pm

First post

I'm making my list of fittings to build a 4 -port piston valve next week to replace the 2 sprinkler valve on my can-launching cannon. I'm going to...

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GGDT agrees with you, but I'm still set on the design. Although, I'm dropping the barrel size to 3 so I can stick with firing #2 cans. I'm going to...

2 Replies

3167 Views

Last post by Daltonultra
Sun Apr 01, 2018 6:56 pm
Attaching PVC to a soda bottle?

Last post by bottlebushing
Replies: 20
by KurlyQ » Sun Mar 30, 2008 10:24 pm
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I have already built one air cannon, but it is rather bulky, hard to transport, and the air reservoir takes waaaayyy too long to fill.

For my Second...

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Why doesnt it exist when so many DIY projects now use PET bottles?

That's a very good question and just off the top of my head. One could take a...
20 Replies

24015 Views

Last post by bottlebushing
Sun Mar 25, 2018 8:41 pm
Simulated recoil on heavy cannons

Last post by GalFisk
Replies: 18
by Sear » Sun Feb 04, 2018 12:47 pm
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Hi all

I'm trying to find the easiest and the most elegant way of how to simulate recoil on heavy cannons.

Existing setup
A cannon with breech...

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You could also use a spring to produce the recoil force, and use pneumatics to compress the spring.
Advantages:
The spring is most powerful when...
18 Replies

23677 Views

Last post by GalFisk
Mon Mar 19, 2018 5:13 am
Help Request New Member

Last post by jackssmirkingrevenge
Replies: 1
by Esna69 » Fri Mar 02, 2018 9:59 pm

First post

Been researching bait line launcher compressed air cannons and have made one but it didn't perform up to par. Hoping the smart people here could...

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Welcome to the forum!

I have looked over the great program that is posted elsewhere, but I am not as smart as the computer.

That's a shame,...

1 Replies

1739 Views

Last post by jackssmirkingrevenge
Mon Mar 05, 2018 8:23 pm
NOVE COMPACT .357

Last post by Air2theBrain
Replies: 7
by Air2theBrain » Tue Jan 30, 2018 12:07 am

First post

Finally got around to working on my compact .357 cannon.

Still need to fit the magnet, install magazine, make the air chamber larger, frame it out...

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Nice little launcher, I like it. I picked up a Benjamin Bulldog not too long ago, its a .357 PCP air rifle, and I'll bet the pellets/bullets would...

7 Replies

5656 Views

Last post by Air2theBrain
Mon Mar 05, 2018 4:37 am
Schrader Valve as dump valve?

Last post by Tempest
Replies: 5
by Tempest » Sun Feb 11, 2018 4:09 am

First post

Hi everyone. This is my first project and I'm wondering if my design is feasible.

I plan to attach a schrader valve (bicycle tyre type) to a hpa...

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Welcome to the forum!
>> Thanks. Been a lurker for a while. Wonderful people and ideas in here

I had tried one as a valve for a repeater, turned...

5 Replies

3112 Views

Last post by Tempest
Thu Feb 15, 2018 10:16 am
Sourcing large volume high(er) pressure pumps?

Last post by D_Hall
Replies: 7
by D_Hall » Sat Feb 10, 2018 9:16 pm

First post

Long story short.... I'm looking for a high volume air pump good to about 300 psi that doesn't cost an arm and a leg. Mind you, I know it's not like...

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Thanks for the tips, folks. I guess they're easier to find than I'd feared. What bit of searching I'd found indicated that stuff didn't go past 150....

7 Replies

5906 Views

Last post by D_Hall
Tue Feb 13, 2018 11:01 pm
.5" X 1" coaxial functional prototype

Last post by Pvc primer
Replies: 2
by Pvc primer » Mon Feb 12, 2018 1:30 pm

First post

Hi guys. I put the bigger coaxial project on hold but meanwhile I have built a smaller 1/2 barrel 1 chamber version. The total length is 27 and the...

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extreme pilot!
Next it'll be a 2-inch ball valve :lol:

2 Replies

2766 Views

Last post by Pvc primer
Tue Feb 13, 2018 4:39 pm
Olympic QEV air gun

Last post by jackssmirkingrevenge
Replies: 19
by kevin-db » Fri Dec 29, 2017 8:57 am
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Hello! It's been a while since I posted break-action air rifle

After that post, I was worried about what gun to make again.

As a result, I was...

Last post

I have been working with my right hand for almost 10 years now, and my nerves in my right hand have been obstructed so that my hands are no longer in...
19 Replies

10339 Views

Last post by jackssmirkingrevenge
Wed Feb 07, 2018 7:55 am
Seeking Freefall

Last post by Spud33
Replies: 10
by Nav7 » Sat Sep 05, 2015 5:03 pm

First post

I'm Nav7 the owner of Waterdawg. This cannon was an prototype experiment for fire fighting cannon idea long ago.
This dream has tortured me for...

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I'm just wondering if you've managed to put this idea to a test? Maybe using some good materials and assembling it onto the truck parts would make it...

10 Replies

7518 Views

Last post by Spud33
Sun Feb 04, 2018 7:33 pm
My bovine safe pneumatic

Last post by notarobot
Replies: 24
by notarobot » Tue Jan 02, 2018 10:39 pm
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I came across this site a year ago and was intrigued with what I saw. Reading the posts took quite a while, but I kept at it. There is just so much...

Last post

That is quite impressive.
What pressure are you using and which model Cold Steel blow gun? I will have to look into this some more.

One of the...
24 Replies

20575 Views

Last post by notarobot
Sat Feb 03, 2018 8:05 pm
Simple QEV air gun

Last post by Daltonultra
Replies: 12
by kevin-db » Mon Jun 26, 2017 8:49 am

First post

re.jpg hi guys
I recently sign up this site
I'm Korean, poor English

I want to show you my air gun

I got a lot of information here
I'm so...

Last post

which can get pretty big, if you're nutty enough. My big cannon manged to fire a can of spaghettios over 400yards...

That's just wrong. Spaghettios...

12 Replies

12263 Views

Last post by Daltonultra
Sat Feb 03, 2018 8:01 pm
Co axial re vote

Last post by Daltonultra
Replies: 3
by Pvc primer » Sun Jan 14, 2018 12:20 pm

First post

Looks like 2 barrel is winning. Who wants to see 3 camber to 1 1/2 inch for some added ping pong ball ammo?

Last post

2.5 in 4 would let you fire tennis balls and soda cans, if you can find the 2.5 ...

3 Replies

3130 Views

Last post by Daltonultra
Sat Feb 03, 2018 5:54 pm
Eclipse Defense job openings

Last post by mark.f
Replies: 5
by Solar » Mon Jan 29, 2018 11:35 pm

First post

Eclipse Defense Technologies is looking for new team members.

Skills we are interested in include 3D CAD (Solidworks), CNC machining (Lathe and...

Last post

Guys, if you're interested, send him a resume, don't just post in this thread. :D

5 Replies

5215 Views

Last post by mark.f
Wed Jan 31, 2018 5:06 am
750 fps marble launcher

Last post by Spud33
Replies: 11
by Anatine Duo » Mon Feb 06, 2017 7:55 pm

First post

Not ready for showcase yet... thought I'd post this now and maybe get some inspiration on how to finish this guy.

Short story: This is the...

Last post

Awesome work you've done there

11 Replies

7661 Views

Last post by Spud33
Thu Jan 25, 2018 11:00 pm
Advantage of QEV over Solenoid valve.

Last post by jackssmirkingrevenge
Replies: 5
by Boltoway » Thu Jan 18, 2018 5:14 am

First post

Looking at building a simple, but powerful pneumatic cannon. This post is my attempt to gain as much information regarding my build before purchasing...

Last post

Burst disk ? :idea:

A suggestion worth considering, while it takes time to set up it definitely offers the best performance for the lowest cost...

5 Replies

3905 Views

Last post by jackssmirkingrevenge
Wed Jan 24, 2018 7:30 am
Bolt Action Bullpup .45 cal (NEW VIDEOS)

Last post by Ian-B
Replies: 27
by auxiliary » Sat Jun 13, 2015 10:47 pm
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It's been a while! Hi all!

I want to share my finished project with you all so I can get some feedback and to offer my creative contribution.

At...

Last post

I am interested in constructing a valve similar to yours, the T piece that the piston is located in, does this have a ported tube lining the T or is...
27 Replies

22864 Views

Last post by Ian-B
Tue Jan 23, 2018 5:32 pm
Pvc pricing

Last post by Cthulhu
Replies: 7
by Pvc primer » Sat Jan 20, 2018 9:52 am

First post

Hey guys. Is it just me or is PVC in Canada way more expensive in the US? I was at home Depot and it was $55 for a 10' length of 3 schedule 40 PVC,...

Last post

Even the 25 dollars for a 3 diameter 10' section is a lot.
Go to local plumbing or hardware stores, they're usually cheaper and it helps local...

7 Replies

4703 Views

Last post by Cthulhu
Sun Jan 21, 2018 4:41 pm
syringes for valves

Last post by jackssmirkingrevenge
Replies: 5
by Anatine Duo » Sun Jan 14, 2018 8:23 pm

First post

Initially I was thinking of using one to pilot a coax (mechanically hold in place; release sear to let syringe head out of the pilot tube), but it...

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I don't think you can compare the two, pumpers typically have a parachute seal which isn't the same thing as the rubber plug that a syringe...

5 Replies

2763 Views

Last post by jackssmirkingrevenge
Tue Jan 16, 2018 6:56 am
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''...

Last post

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

1413 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

3261 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...

Last post

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

14022 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...

Last post

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

3330 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...

Last post

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

3644 Views

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

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