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

927749 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

452806 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

471140 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

638408 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

332422 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

80313 Views

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

Topics

Safe pressure for 1/2" brass fittings

Last post by auxiliary

by auxiliary » Sun Jan 31, 2010 5:35 pm

I am making a 1/2 QDV airgun and for the chamber I have used 1/2 threaded brass fittings consisting of two Tees and assorted bushings (the overall...

0 Replies

1989 Views

Last post by auxiliary
Sun Jan 31, 2010 5:35 pm
No tater...just a blast?

Last post by bionic
Replies: 6
by bionic » Sat Jan 30, 2010 9:52 am

First post

I want to dry fire an air cannon to vent a high force blast of air. Watching videos you see the effects of the air venting the barrels and it looks...

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Update -

Made a pretty snazzy tank with 3/4 sprink valve. Lots of honking at 60 psi and lower. Blew a rolled up sock placed 2 inches in front of .75...

6 Replies

2658 Views

Last post by bionic
Sun Jan 31, 2010 4:44 pm
2" pneumatic barrel sealer

Last post by jackssmirkingrevenge
Replies: 13
by rikukiakuchiki777 » Sat Jan 30, 2010 8:35 pm

First post

This is my first *working* pneumatic. It is my second attempt at a PVC barrel sealer, the first was a dismal failure. I posted a helpme/buildlog here...

Last post

HAHAHA!!

I genuinely lolled :lol: :lol: :lol:

13 Replies

6408 Views

Last post by jackssmirkingrevenge
Sun Jan 31, 2010 8:22 am
burst disk pistol

Last post by sp1ke
Replies: 5
by sp1ke » Wed Jan 27, 2010 10:48 pm

First post

I am currently working on a burst disk pistol (actually I am modifying this gun and taking Davidvaini's advice on adding a burst disk to increase...

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thanks for all the advice. keep it coming!

this weekend I hope on getting a shrader valve, hp bike pump, and start working on making it look like...

5 Replies

2327 Views

Last post by sp1ke
Sat Jan 30, 2010 11:06 am
new MAC control valves

Last post by POLAND_SPUD
Replies: 4
by c11man » Fri Jan 22, 2010 12:43 pm

First post

so i have some connections and i got 3 MAC spool valves for free. one used and the other 2 BRAND new, never used. the used one is a 4 way 1/4inch...

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@bionic
but this valves are special because they are 3 way valves, whereas sprinkler valves are 2 way valves

so you can use them to build a semi...

4 Replies

4020 Views

Last post by POLAND_SPUD
Sat Jan 30, 2010 10:56 am
Using Vacuum pressure to speed up a sprinkler valve?

Last post by bionic
Replies: 15
by bullrees » Fri Jan 22, 2010 11:16 pm
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First off I did search the forum and could not find anything related.It may be because it is not reasonable but I have to ask because it may be...

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Hey I'm a Noob but with your design I think due to the small scale the effect would be neglegible. Maybe on a large scale it would be worth...
15 Replies

5794 Views

Last post by bionic
Sat Jan 30, 2010 9:32 am
coaxial or not?

Last post by chinnerz
Replies: 14
by Gun Freak » Wed Jan 27, 2010 9:48 pm

First post

some of you have seen both of my new designs, i am wondering if the co-ax is typically better or not. im also wondering if a blowgun alone will have...

Last post

ill give it a go on my next build :P i have lots of space limitations right now

14 Replies

4365 Views

Last post by chinnerz
Sat Jan 30, 2010 3:11 am
lightgasgun

Last post by DYI
Replies: 6
by RDX, » Fri Jan 29, 2010 7:15 am

First post

legally what is it.. airgun or fire-arm.. I know that it uses hydrogen to shoot projectile , but it also uses explosive power to compress the...

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Of course, their use in the research of nuclear weapons could be problematic.

Well, here's hoping that his prosecutor isn't too well informed....

6 Replies

2069 Views

Last post by DYI
Fri Jan 29, 2010 6:36 pm
New Co-Ax Design

Last post by SP00K
Replies: 22
by Gun Freak » Wed Jan 27, 2010 4:58 pm
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Heres a design i came up with today... what do you guys think? much more simple and cheap than my last piston valve design. i plan to up the...

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Blowgun doesn't have enough flow.

Ahhh, it just seemed kind of redundant at the time.
22 Replies

7203 Views

Last post by SP00K
Fri Jan 29, 2010 6:06 pm
School Project.

Last post by jimmy101
Replies: 20
by hobodictator » Tue Jan 26, 2010 1:18 pm
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Hey guys, I'm not really sure if this is the right spot for this thread so if its needs moved then please do so.

At my school, im in physics. We are...

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Yes, launchpotatoes.com is a good source. And you might be able to get reasonable GGDT parameters for the valve they have.

In the drawing of the...
20 Replies

6669 Views

Last post by jimmy101
Thu Jan 28, 2010 2:44 am
My new copper coax with a custom wood stock

Last post by Gun Freak
Replies: 42
by jook13 » Wed Dec 03, 2008 2:57 am
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So here is my latest spud creation. At heart, she is a simple coaxal piston made from copper. I just prettied it up and made it more fun to shoot...

Last post

Noob post.

:newb:
42 Replies

21046 Views

Last post by Gun Freak
Wed Jan 27, 2010 7:33 pm
airsoft semi with mac valve

Last post by c11man
Replies: 7
by c11man » Sun Jan 24, 2010 10:57 pm

First post

so i took the 1/8inch solinoid valve i got and made a simple semi out of it. i dont have much time so i just post pics for now

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yes manual would be easyer but this isnt going to be handheld when done :D i know that the solinoid is quite inefficeint and i can only shoot through...

7 Replies

2055 Views

Last post by c11man
Wed Jan 27, 2010 7:27 pm
First Pneumatic Cannon

Last post by Spudnyk
Replies: 4
by Spudnyk » Wed Jan 27, 2010 11:28 am

First post

Pretty primitive but works

Last post

Sorry at work man we only use caps force of habit :D Thank though

4 Replies

1886 Views

Last post by Spudnyk
Wed Jan 27, 2010 3:18 pm
Timer grenade, pre-loaded shell and mag fed vids *New Pics*

Last post by Solar
Replies: 10
by Solar » Mon Jan 25, 2010 9:27 pm

10 Replies

2739 Views

Last post by Solar
Wed Jan 27, 2010 2:57 am
Plans for a piston gun.

Last post by Gun Freak
Replies: 8
by elad311 » Sat Dec 19, 2009 8:51 am

First post

I was cleaning my computer when I came across with those plans for
a piston gun:
I'm guessing that the grey part is the piston and the ratio between...

Last post

Oh my bad :P Didn't realize. This thread was at the top of the Pneumatic Cannon Discussion :roll:

8 Replies

3830 Views

Last post by Gun Freak
Tue Jan 26, 2010 11:21 am
Piston valve specs and optimization?

Last post by jrrdw
Replies: 25
by pvcmaster » Wed Jul 22, 2009 2:22 pm
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I haven't been on spudfiles in a while, but i've got a question for everyone. I'm looking to use my experience to build a really nice piston valve,...

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Looking good, I hope a video is in our near future. Didn't you have a gulf ball barrel planned for this?
25 Replies

9033 Views

Last post by jrrdw
Tue Jan 26, 2010 8:47 am
Quiet Air Cannon Possible?

Last post by john bunsenburner
Replies: 13
by bionic » Sat Jan 23, 2010 12:03 pm

First post

Hello all - new around here. All the gun stuff is cool as heck but I am trying to design something to shoot nothing but a slug of high volume high...

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The suppressor is meant to get rid of as much extra air as possible...it would be contra-productive in this case, as it would make the sound less...

13 Replies

6367 Views

Last post by john bunsenburner
Mon Jan 25, 2010 11:47 am
FANG prototype 3... will have to wait

Last post by btrettel

by btrettel » Sat Jan 23, 2010 6:35 pm

I removed the description. If you haven't read it, you'll have to wait for the finished product to see what it's like.

0 Replies

2222 Views

Last post by btrettel
Sat Jan 23, 2010 6:35 pm
boltaction breach idea

Last post by chinnerz
Replies: 5
by chinnerz » Tue Jan 19, 2010 1:58 am

First post

so i found myself without phone or internet one afternoon, and since my air rifle is busted, i decided to do a brain storming session, many pages...

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yeah i got some wifi :P, but my phone wont let me do too much...
thanks for the tips guys.
boyntonstu, i got rid of the spring mainly for niceness ,...

5 Replies

2015 Views

Last post by chinnerz
Sat Jan 23, 2010 5:16 am
Balanced Condor-style valve

Last post by Lex
Replies: 29
by LexXis » Sun Jan 17, 2010 4:12 pm
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Hey guys,
i have been reading this forum for a while now, and am really impressed by the stuff you come up with :)
Lately i`ve stumbled upon the...

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Prototyping is on schedule for the next week or so. The barrels diameter should be at about 5 mm, pressure is limited to about 130 psi due to my...
29 Replies

14847 Views

Last post by Lex
Fri Jan 22, 2010 10:49 am
Where should the burst-disk be?

Last post by CpTn_lAw
Replies: 7
by Marffy » Thu Jan 21, 2010 11:45 pm

First post

I'm in the making of a paintball/airsoft bazooka. the gun uses a ball valve and as we all know ball valves are no good unless you have a HUGE chamber...

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I'd precognize you go easy on pressure at first. I made a cannon like yours, even with a small chamber and 100 psi, it was nothing compared to just...

7 Replies

1963 Views

Last post by CpTn_lAw
Fri Jan 22, 2010 6:48 am
Just another copper gun

Last post by Nwest82
Replies: 50
by hyldgaard » Fri Mar 21, 2008 8:20 am
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So, i finally got around to making myself a decent powered gun. You can se most of the details on the pictures, but if there is anything you want to...

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:/ i want a fridge compressor lol. how much pressure does it put out? 200psi? an how do i make one anyway?

I am not the type to shout about these...
50 Replies

26253 Views

Last post by Nwest82
Fri Jan 22, 2010 2:21 am
XP21 Thundersquish Tactical Marshmallow Cannon

Last post by John Conklin
Replies: 12
by John Conklin » Thu Jan 21, 2010 6:11 pm

First post

I was thinking about my grandkids’ marshmallow shooter, and started wondering If you accelerate a marshmallow to a high enough velocity, would it be...

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I've been thinking about a hybrid, but first I'm going to try going supersonic with 200 PSI helium... just to see if it can be done.
I'll try the...

12 Replies

4140 Views

Last post by John Conklin
Fri Jan 22, 2010 12:55 am
300psi hammer

Last post by jackssmirkingrevenge
Replies: 1
by qwerty » Thu Jan 21, 2010 4:09 pm

First post

How strong would the hammer (not as in a nail hitting hammer) have to be to open a 300psi hammer valve with a bore of 4.5mm? would it be 300 pounds?...

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No, much less.

Area of your valve is 0.0246 square inches, so the force on it is 7.38lbs

1 Replies

944 Views

Last post by jackssmirkingrevenge
Thu Jan 21, 2010 4:11 pm
good leak fixer?

Last post by clemsonguy1125
Replies: 3
by Marffy » Wed Jan 20, 2010 11:22 pm

First post

today i finally decided to fix my leaky potato cannon with some tire slime. so i did. questions is: have you done this teqnuic? does it work well? my...

Last post

Well if thats doesnt work try some plumbers goop

3 Replies

1293 Views

Last post by clemsonguy1125
Thu Jan 21, 2010 11:50 am

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