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

1667202 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...

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

754374 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

982107 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

1165218 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

466247 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

131464 Views

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

Topics

bolt action coaxial?

Last post by kydavies
Replies: 8
by kydavies » Sat May 05, 2012 11:06 pm

First post

heres my design for a bolt action coaxial to be used for 40mm projectiles (filled ping pong balls and squash balls)

the main problem I for see is...

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lol, I searched bolt action coaxial and came up with nothing XD. Quark, its kinda funny how we came to the EXACT same solution.

I havent had polish...

8 Replies

4166 Views

Last post by kydavies
Sun May 06, 2012 12:25 pm
How does a QEV work?

Last post by MrCrowley
Replies: 1
by Theegle » Sun May 06, 2012 5:28 am

First post

So I have looked at this around here but I am still confused. How does it work?

Last post

Spud Wiki > Pneumatic launchers > Piston valves

Or

Pneumatic Cannon Discussion (where this topic is posted) > Sticky: Piston Valves Explained...

1 Replies

4409 Views

Last post by MrCrowley
Sun May 06, 2012 5:38 am
How to fix the sprinkler valve goose sound.

Last post by Brian the brain
Replies: 8
by nosmokingbandit » Thu May 03, 2012 9:31 pm

First post

I Just finished building an air-powered sprinkler-valve spud gun and I have a slow leak. After checking all of the pipe fittings (i used galvanized...

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What if your pilot valve leaks, or worse, bumps and breaks while your loading??

I had a leaking pilot once when fellow member Psycix viseted me.....

8 Replies

5077 Views

Last post by Brian the brain
Sun May 06, 2012 4:20 am
First Rifle (1/4" BB) - Simple design w/shock pump

Last post by jackssmirkingrevenge
Replies: 19
by cane toad » Mon May 09, 2011 1:51 am
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Hi,

This is my first post, sorry for any mistakes. My work mate and I built a couple of variations of this gun last year for [ COMMENT REMOVED BY...

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Nice valve!
Any idea on what sorta pressure it's rated to?
And what sort of opening time it has?
Would it be similar to a ballvalve or rather to a...
19 Replies

18027 Views

Last post by jackssmirkingrevenge
Sun May 06, 2012 4:16 am
used 2inch sprinkler valve(where to buy)

Last post by mattyzip77
Replies: 3
by 8tonsemi » Sat May 05, 2012 12:56 pm

First post

Where can I get a used 2 inch sprinkler valve.

Last post

I got it from a member on here and he got it from e bay. If you use a qev, you dont have to worry about modifying it. Attach a chamber and barrel...

3 Replies

1439 Views

Last post by mattyzip77
Sat May 05, 2012 5:56 pm
Questions on 2.5 inch barrel tennis ball cannon

Last post by High-PSI
Replies: 22
by High-PSI » Sat Apr 14, 2012 6:43 pm
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Hey Guys,

As the title says, I am looking to build a simple tennis ball cannon to play with in the park behind our house. I think it will be great...

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Hey Guys,

I was asked for some performance results.........

My sealing piston repair did the trick. We have been firing and firing and firing this...
22 Replies

20882 Views

Last post by High-PSI
Sat May 05, 2012 9:26 am
Piston bumper ideas.

Last post by MrCrowley
Replies: 4
by 8tonsemi » Fri May 04, 2012 9:44 am

First post

I want to know what you would recommend for a bumper on a piston cannon.

Last post

Your other thread has been deleted. There is no need for two threads by the same author on the same topic. Like the others have already said, you...

4 Replies

2250 Views

Last post by MrCrowley
Fri May 04, 2012 4:44 pm
Machined Piston Valve Questions

Last post by Technician1002
Replies: 3
by CranialImpalement » Thu May 03, 2012 9:56 am

First post

Hello all,

Aside from a simple ball valve cannon, I haven't made a pneumatic (nor combustible, for that matter) cannon that requires extensive...

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My thoughts on piston movement.. to full open.
In a coaxial design, when the piston has moved back 1/4 the orifice diameter, The area of the opening...

3 Replies

1544 Views

Last post by Technician1002
Thu May 03, 2012 11:32 am
New pac pvc pression

Last post by Petitlu
Replies: 23
by smirpab » Thu Mar 04, 2010 6:10 am
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Then hello to all I my pen name is Smirpab, I am French and I live in France, I do not speak too very English and for cella I use a French/English...

Last post

Excellent my friend !
23 Replies

8013 Views

Last post by Petitlu
Thu May 03, 2012 10:55 am
Season 2 begins

Last post by jackssmirkingrevenge
Replies: 30
by Spud Destruction » Sat Apr 28, 2012 1:03 pm
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Let me know what you guys think. A comment was posted about needed some sort of penetration round and i do agree. I just don't know how i would go...

Last post

Haha, I don't mind being made an example of every now and then :D

Fear not, whenever anyone airs doubts about shooting their chrony, you're going...
30 Replies

12463 Views

Last post by jackssmirkingrevenge
Thu May 03, 2012 12:10 am
how much pressure to fire a tennis ball 15m?

Last post by Technician1002
Replies: 14
by blandy10 » Sun Apr 15, 2012 2:34 am

First post

Hi everyone! Im doing a school project and what im making is a pneumatically powered spud gun (obviously). I was just wondering, roughly how much psi...

Last post

^^^^ only with a restrictive valve. Much lower pressure can reach that far.

14 Replies

4354 Views

Last post by Technician1002
Wed May 02, 2012 6:16 pm
qev 1/2 or 3/4

Last post by Petitlu
Replies: 5
by max76 » Tue May 01, 2012 6:04 am

First post

for the tube 6mm with pellets 5mm ,
which QEV is better 17 or 3/4?

Last post

1/8
it is also

5 Replies

1814 Views

Last post by Petitlu
Tue May 01, 2012 1:34 pm
Pressure rating for schedule 40 aluminum

Last post by grumpyoldman
Replies: 6
by grumpyoldman » Sun Apr 29, 2012 10:07 pm

First post

I was looking on McMaster's web site at schedule 40 aluminum nipples. It says to use 150 class fittings which are only rated to 150 psi operating...

Last post

Thanks moonbogg. I thought all aluminum pipe was seamless.

I just checked and McMaster's says it's seamless ASTM B241 so it looks like it's truly...

6 Replies

12115 Views

Last post by grumpyoldman
Tue May 01, 2012 2:57 am
New Mauler Cannon with Pics

Last post by mattyzip77
Replies: 8
by mattyzip77 » Mon Apr 30, 2012 2:31 pm

First post

I got this valve in the mail today. Its definatly wasnt what I expected, but oh well. It works pretty good and has some power to it. In my opinion,...

Last post

The cannon moron, now go jack someone elses thread! :idea:

8 Replies

1492 Views

Last post by mattyzip77
Mon Apr 30, 2012 8:41 pm
almost finish

Last post by jackssmirkingrevenge
Replies: 34
by dahakka » Mon Apr 02, 2012 9:26 am
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i alway want to do something like this since i found this website and started building gun :lol: :lol: :lol:
super happy
:lol: :lol: :lol:...

Last post

That's pretty cool, I even won't say anything about the feet :) shame you don't have a spring reset on the trigger.
34 Replies

11704 Views

Last post by jackssmirkingrevenge
Mon Apr 30, 2012 12:20 am
Paintball valve

Last post by cammyd32
Replies: 7
by jan019 » Mon Apr 23, 2012 3:47 pm

First post

Hi,

I'm glad to become a part of this forum. Seem's like there's more than enough very usefull information here, so that's great. Anyway, to my...

Last post

Compressed gas shamefully doesn't work as simply as that I'm afraid, PSI isn't a measure of volume for gas, and the differences in volume of gas per...

7 Replies

2827 Views

Last post by cammyd32
Sun Apr 29, 2012 6:02 am
2inch piston bumper's??

Last post by CooperJS
Replies: 6
by CooperJS » Sat Apr 28, 2012 2:51 am

First post

Hey guys, recently built a 2 inch piston valve and was wondering what are some really good bumpers? I tried i tennis ball but that didn't seem to do...

Last post

Im trying out the lego tires today to see how well they work, they look pretty good, and look like they would stop the piston softly, but if they...

6 Replies

3515 Views

Last post by CooperJS
Sat Apr 28, 2012 9:36 pm
First 2" piston valve

Last post by kotabuuki
Replies: 8
by kotabuuki » Fri Apr 27, 2012 7:46 pm

First post

Wow, it's been a year already? It seems like only yesterday I was asking noobish questions, but alas it is complete. It was originally for a physics...

Last post

I think you should paint the sprinkler valve dude. It will make it look way better and cooler with it on there. Also, is the sprinkler valve...

8 Replies

4566 Views

Last post by kotabuuki
Sat Apr 28, 2012 4:26 pm
Our new cannon for the show and a shout out .

Last post by Brian the brain
Replies: 11
by Spud Destruction » Fri Apr 27, 2012 12:44 am

First post

I want to thank you guys for the advice that was given during my building phase of this cannon. You can check it out by following this link below.

Last post

very cool of you to credit some of our members!

I'd keep it all here and edit the topic to The Spud Destruction Show Thread or something like that....

11 Replies

4954 Views

Last post by Brian the brain
Sat Apr 28, 2012 1:19 pm
pilot valves

Last post by jackssmirkingrevenge
Replies: 5
by Major Collins » Fri Apr 27, 2012 12:38 am

First post

a 1/2 ball valve is a bit much for a 3/4 barrel sealer isn't it ? can someone go over the piloting information please

Last post

haha well even though it has a high flow isn't it more efficient to have a airtight check-valved piston and a smaller pilot ?

Having a big pilot to...

5 Replies

1777 Views

Last post by jackssmirkingrevenge
Fri Apr 27, 2012 1:33 am
PCP building blog

Last post by wyz2285
Replies: 88
by wyz2285 » Wed Feb 01, 2012 11:55 am
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Hi every one.
I have started my new pcp project. (BTW Gun Freak hope that´s ok to you :wink: )
I had did some big modifications to the blowgun valve,...

Last post

Sorry, not intended to offend anybody, personally I like to work as a blacksmith or a carpenter, but for my own future well-be I have to aim higher.
88 Replies

36146 Views

Last post by wyz2285
Thu Apr 26, 2012 2:48 pm
Unreged co2 - lathe - Doubt about materials and wall thickne

Last post by apocavorme
Replies: 14
by apocavorme » Sun Apr 22, 2012 8:41 pm

First post

Hello spudgunners!
I would like to build a gun to use unregged co2, ggdt simulation bellow;

I have no access to metal pipes, metal fittings,...

Last post

hi guys,
i found ptfe (teflon), nylon (polyamide), and did not find hdpe; i rethink the design to get more shots, so i´m thinking in 400 psi and...

14 Replies

5621 Views

Last post by apocavorme
Thu Apr 26, 2012 1:46 pm
Mauler valve for sale

Last post by mattyzip77
Replies: 7
by grahats » Tue Apr 24, 2012 7:07 pm

First post

I purchased a Mauler valve from Launch potatoes.com over a year ago and have not touched it because of other obligations. Not sure about plans or...

Last post

Yup, this bad boy is mine!!!! Already have the barrel and chamber made! Just gotta add this! Cant wait to get it!!

7 Replies

3516 Views

Last post by mattyzip77
Thu Apr 26, 2012 12:20 pm
how to construct the loading system for pellets 4,5 ?

Last post by dahakka
Replies: 5
by max76 » Wed Apr 25, 2012 5:24 am

First post

how to construct the loading system for pellets 4,5?

Last post

if you combine this
and that loading system, you will have perfect gun
no wast air,pellet get max speed ,no need ajustment at all, right?

5 Replies

2038 Views

Last post by dahakka
Wed Apr 25, 2012 8:12 am
2" Spudgun (cannon) made from beadseater and pipe.

Last post by jackssmirkingrevenge
Replies: 4
by Ryan00101101 » Wed Apr 25, 2012 12:07 am

First post

I just made a spud gun (cannon) it was a bead seater. Now it is a cannon! it has a 75 long barrel 2 diameter made with schedule 80 ipex with a 2...

Last post

All you need is a union to hold it, maybe something like this .

I also find that camlok fittings work well too.

4 Replies

3173 Views

Last post by jackssmirkingrevenge
Wed Apr 25, 2012 12:33 am

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