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

1079588 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

526673 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

620008 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

783093 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

364349 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

88818 Views

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

Topics

Small Pneumatic Launcher Help

Last post by farcticox1
Replies: 9
by Genadmm » Fri Mar 22, 2019 10:07 pm

First post

Greetings, :D
This is my fist post on this forum and I'm pretty new to it all. I am currently planning to make a small pneumatic line launcher that...

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Over under like this works fine

006 (1).jpg

Or chamber to the rear (front is just PVC)

SS (1).jpg

I mostly use these brass fittings, they are...

9 Replies

7002 Views

Last post by farcticox1
Fri Mar 29, 2019 4:01 am
composite tubes

Last post by jackssmirkingrevenge
Replies: 10
by Anatine Duo » Wed Mar 13, 2019 10:11 pm

First post

Here is something I've been working on for a long time. Access to smooth tubing is easy, but access to strong smooth-inside tubing is not always. My...

Last post

If someone ( I think you already know this) is contemplating strengthening a 3d print, always keep in mind the print might flow under pressure. I...

10 Replies

6830 Views

Last post by jackssmirkingrevenge
Mon Mar 18, 2019 4:57 am
Maximizing flight distance

Last post by farcticox1
Replies: 6
by rphaddad » Mon Feb 25, 2019 10:56 pm

First post

Hi:

New to the forum, got lots of great ideas for my son's science fair project here. Trying now to help him interpret the results. We built a...

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Like I made it and forgot I made it :o

008 (3).jpg

6 Replies

4058 Views

Last post by farcticox1
Thu Feb 28, 2019 5:22 am
A 10-32 QEV for a 40mm projectile?

Last post by hectmarr
Replies: 13
by dtitr » Sat Feb 16, 2019 1:43 pm

First post

Ok so, I'm new to this. I'm making a project that shoots a 40mm projectile out of a 9 barrel. I'm thinking of using this 10-32 QEV:
I'm using a 16g...

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Its operation is very clear. It's quite simple, in general.

13 Replies

6630 Views

Last post by hectmarr
Fri Feb 22, 2019 4:41 pm
More power

Last post by farcticox1
Replies: 12
by Polymath » Sat Feb 09, 2019 11:17 am

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Hi there, new to aircannons and spudfiles, I have build a semi auto air cannon firing 8 mm steel balls, I am using a qev, with air chamber 1” x 6”,...

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One of these would be perfect, and you don't need any power

s-l64.jpg

This is something I made with a homemade QEV, you get a ready made trigger...

12 Replies

6145 Views

Last post by farcticox1
Sun Feb 17, 2019 1:32 pm
Breach Loaded Pneumatic Rifle

Last post by farcticox1
Replies: 6
by Potato Demon » Mon Feb 11, 2019 6:46 pm

First post

I was at the hardware store a few days ago and I thought “Why not make my 9th spud gun?”. Do I did. It managed to stick a blowgun dart in my garage...

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This one is pretty simple, and it uses a bike pump :shock:

6 Replies

5522 Views

Last post by farcticox1
Wed Feb 13, 2019 6:08 am
Help finding a valve for my airgun

Last post by jackssmirkingrevenge
Replies: 8
by northbank1 » Sun Jan 20, 2019 8:08 pm

First post

Hello I want to make a airgun that uses a solenoid valve. I have looked for an hour but I can't find a valve that will fit my needs.
I need a valve...

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Would a hydraulic valve work with air

I've had hydraulic tubing leak at 4500 psi when used as part of a high pressure fill setup, it depends on the...

8 Replies

5117 Views

Last post by jackssmirkingrevenge
Mon Feb 04, 2019 11:53 am
What valve should i use?

Last post by farcticox1
Replies: 2
by brandon2513 » Sun Feb 03, 2019 11:07 pm

First post

I am looking for something small and cheap i will be filling it from a 1/4 schrader valve because it needs to be portable, thanks.

Last post

Exactly what I would suggest

2 Replies

4161 Views

Last post by farcticox1
Mon Feb 04, 2019 5:01 am
Spring-Loaded Ball Valve patent from 1880

Last post by jackssmirkingrevenge
Replies: 4
by jackssmirkingrevenge » Thu Dec 13, 2018 1:53 pm

First post

US229868A patent

My invention consists of the stock of the arm, hollow or partly hollow, receiving air under pressure and communicating with the...

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it appears to be a dump valve so probably one decent shot then 10 minutes of pumping.

If you look at the diagram, the valve marked P appears to...

4 Replies

5351 Views

Last post by jackssmirkingrevenge
Sat Jan 19, 2019 5:21 am
Projectiles

Last post by mark.f
Replies: 4
by brandon2513 » Sun Jan 06, 2019 4:23 pm

First post

Hi would anyone happen to know any projectiles that would fit snugly inside a 3 inch pvc pipe?

Last post

Certain canned goods fit the bill, depends on what effect you want to achieve on the target ;)

:D

(Also frozen 20oz's supposedly work but I...

4 Replies

3984 Views

Last post by mark.f
Sat Jan 12, 2019 10:50 am
Airsoft Shotgun

Last post by farcticox1
Replies: 7
by brandon2513 » Sat Dec 29, 2018 9:38 pm

First post

Hi i am relatively new to all this and i wanted to build an airsoft shotgun that runs of an HPA tank or some sort of portable air source, and that u...

Last post

I removed the solenoid coil and made a grip from 1 pvc pieces. The red button is the trigger.

pv_avs331324d_02.jpg

7 Replies

5355 Views

Last post by farcticox1
Wed Jan 09, 2019 5:15 am
First ever pneumatic potato cannon

Last post by jackssmirkingrevenge
Replies: 3
by ToneTheDog » Sun Dec 16, 2018 11:34 am

First post

So I’ve wanted to get into building spud guns in the past and since I just got my first job I figured why not try and build one. Its one of those...

Last post

Welcome!

The piston was just a mason jar

oh.

...which leads me to think its something to do with the piston.

uh huh.

I don't think we need...

3 Replies

3126 Views

Last post by jackssmirkingrevenge
Mon Dec 17, 2018 10:06 am
GGDT and hammer valves

Last post by jackssmirkingrevenge
Replies: 4
by jackssmirkingrevenge » Tue Dec 11, 2018 6:48 am

First post

Had some discussion on the GTA forum and a few users modeled their hammer valve PCPs using GGDT and the predicted performance in terms of energy was...

Last post

Mass production models or home built I wonder? There would be differences in the builds.

Home builds with conventional valves, technically it's the...

4 Replies

4444 Views

Last post by jackssmirkingrevenge
Thu Dec 13, 2018 6:39 am
QDV design - airflow vent shape

Last post by jackssmirkingrevenge
Replies: 3
by fluffyisepic » Sun Dec 09, 2018 10:07 pm

First post

I'm looking to put together a T-shirt cannon for a school project this January, and have been reading around on QDV design. Officially the project is...

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Thanks! I think I'll stick with the coaxial design; at 2 the other example may prove to be more of a headache than I want to deal with.

It can...

3 Replies

2487 Views

Last post by jackssmirkingrevenge
Thu Dec 13, 2018 6:36 am
Second Pneumatic Potato Gun

Last post by Potato Demon
Replies: 7
by Potato Demon » Wed Nov 21, 2018 11:43 pm

First post

Hello SpudFiles, I have made a second pneumatic spud gun. I just finished it a few hours ago and I need to let the cement dry for a full 24 hours...

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Actually it is not leaking there, it is leaking on the pvc to pvc part. I guess the threads are damaged or something. Oh well I guess it shouldn’t be...

7 Replies

6376 Views

Last post by Potato Demon
Wed Dec 05, 2018 9:47 pm
Pneumatic cannon (Thumper)

Last post by jackssmirkingrevenge
Replies: 5
by Olay » Fri Nov 30, 2018 3:44 pm

First post

I thought my project would be interesting for you.

I built it for a school project. It's intended to shoot tennis ball (at 100psi = 70meters),...

Last post

Paired with a stronger DC motor I believe I could achieve that. I was aiming at around 200-300psi.

I'm not sure a stronger motor alone would be the...

5 Replies

3284 Views

Last post by jackssmirkingrevenge
Sun Dec 02, 2018 7:22 pm
Using solenoid as main valve.

Last post by jackssmirkingrevenge
Replies: 4
by MuntedKoala » Wed Nov 28, 2018 8:12 pm

First post

Hello,

I am planning a new Nerf build. I am thinking of using a solenoid similar to this. Just wondering if any of you have experience with those...

Last post

I would highly recommend becoming familiar with Gas Gun Design Tool so you can know what parameters are going to give you the performance you need.

4 Replies

2798 Views

Last post by jackssmirkingrevenge
Sun Dec 02, 2018 7:09 pm
Nerf Launcher help/how-to

Last post by Bosgarage57
Replies: 3
by Bosgarage57 » Wed Nov 28, 2018 12:29 pm

First post

Hello fellow spud heads. I am new here. I play paintball and in bigger scenario's we are allowed Anti-Tank launchers that launch 40mm pocket nerf...

Last post

Thanks guys, i'll check those out.

As for parts I have a plethora of paintball parts (palmers stabilizer, and various other regulators) I can use...

3 Replies

2548 Views

Last post by Bosgarage57
Fri Nov 30, 2018 8:56 am
My BSP (bovine safe pneumatic) v2

Last post by jackssmirkingrevenge
Replies: 7
by notarobot » Wed Nov 21, 2018 3:10 pm

First post

Here is my latest pneumatic.
I have been working on this gumball shooter for the better part
of this year trying to create a mechanism which:
1-...

Last post

Actually, I was trying for redneck rather than steampunk.

Too much effort in that wood to be redneck :)

Epoxy implies a certain permanence, and...

7 Replies

6913 Views

Last post by jackssmirkingrevenge
Fri Nov 30, 2018 7:27 am
BFG #7

Last post by farcticox1
Replies: 26
by farcticox1 » Sun May 07, 2017 9:47 am
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That's right, you know it

Time to call it finished, compressed air (135 psi) powered, 10mm ball bearing ammo, semi automatic, magazine holds 10...

Last post

Well spotted, that's the profile I used :D
26 Replies

23896 Views

Last post by farcticox1
Mon Nov 26, 2018 5:26 am
Sprinkler valve help

Last post by Potato Demon
Replies: 3
by Potato Demon » Sun Nov 18, 2018 5:54 pm

First post

Hi, I recently purchased an Orbit model 57461 sprinkler valve and I modded it with a blowgun. In the tutorial I was following (same model and...

Last post

There is an air leak but I believe I can fix it. It is a high pitched noise.

3 Replies

3248 Views

Last post by Potato Demon
Mon Nov 19, 2018 6:31 pm
Mechnanically locked spool valve

Last post by jackssmirkingrevenge
Replies: 4
by jackssmirkingrevenge » Thu Nov 15, 2018 11:42 am

First post

I have more than a couple scrap paintball markers knocking about, I've been thinking of using the trigger from something like that for a relatively...

Last post

warm, only -5, snow.

I expected worse :)

I understand that the flow section should be more, but this requires large parts, they are expensive,...

4 Replies

3571 Views

Last post by jackssmirkingrevenge
Thu Nov 15, 2018 2:03 pm
The Beast - 10mm cal pneumatic rifle

Last post by hectmarr
Replies: 32
by jackssmirkingrevenge » Sat Apr 14, 2007 4:49 am
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Here's a bit of a blast from the past - this is The beast - so named because compared to my other projects, it was the biggest and most powerful...

Last post

I tried the first version, the one with the front seal, something messy, but it works well. The second version, the one with two rings, I can build...
32 Replies

24131 Views

Last post by hectmarr
Wed Nov 07, 2018 11:41 pm
My First Pneumatic

Last post by Potato Demon
Replies: 9
by Potato Demon » Tue Oct 30, 2018 10:31 pm

First post

Hi, I recently built my first pneumatic potato cannon. It has a 2’ x 2” ABS air tank, a 2 inch ball valve trigger, and a barrel the same size as the...

Last post

I find that wooden projectiles about the size of a red potato wrapped in duct tape work very well.

9 Replies

5655 Views

Last post by Potato Demon
Mon Nov 05, 2018 7:01 pm
Full Auto 50

Last post by jackssmirkingrevenge
Replies: 75
by kustomkb » Thu Feb 20, 2014 11:02 pm
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Inspired by e_smith2000's AA gun, ( ) I started on one of my own.

Here is a screen shot of the basic design;

I started on a jar-top valve...

Last post

If I say I am going to do something, I do it. It may take five years, but it gets done.

How many times has the wife heard that :D

I can adjust...
75 Replies

43629 Views

Last post by jackssmirkingrevenge
Sat Oct 27, 2018 5:47 am

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Pneumatic Cannons

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