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

1203727 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

605628 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...

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great job everyone
64 Replies

858403 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

1021570 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

392892 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

100171 Views

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

Topics

New (to my knowledge) bolt/piston design

Last post by jonnyboy
Replies: 3
by jonnyboy » Wed Jul 09, 2008 11:05 am

First post

To the best of my knowledge this is a new piston loading mechanism. If its not please don't flame me for stealing someones design .

The bolt...

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I think a detailed description of how it would work is needed. I'm looking and not seeing at the moment.

I'm having a current suspicion you're...

3 Replies

1254 Views

Last post by jonnyboy
Wed Jul 09, 2008 3:21 pm
alternate ways of fixing burst discs?

Last post by trollhameran
Replies: 8
by trollhameran » Wed Jul 09, 2008 1:18 pm

First post

Sorry if this has been asked before but is there any other ways of fixing burst discs on a copper gun rather than using a union, as I need an easy...

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I will probably be using foil, im not to worried about power a i am mainly going for rof

8 Replies

1148 Views

Last post by trollhameran
Wed Jul 09, 2008 3:20 pm
Sprinkler Valve in GGDT

Last post by MrCrowley
Replies: 2
by skyjive » Tue Jul 08, 2008 7:35 pm

First post

Has anyone figured out the GGDT inputs to model a BC Arms blow-gun modded 1 Sprinkler valve? Thanks

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There's also a fair amount of discussion about variants and different variables with sprinler valves here:

2 Replies

1152 Views

Last post by MrCrowley
Tue Jul 08, 2008 9:13 pm
Pneumatic Rocket Launcher

Last post by rp181
Replies: 20
by no-limit » Fri Apr 11, 2008 9:04 am
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So I 've built my 5th launcher and think it's pretty good, at least compared to my last one. I never could figure out the chamber size but seems to...

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use air instead of Co2, co2 is heavier so it wil give less speed then air at the same pressure.
20 Replies

8429 Views

Last post by rp181
Tue Jul 08, 2008 1:03 pm
Building a Marble/Cork Gun

Last post by nickz
Replies: 7
by ammosmoke » Thu Jun 26, 2008 6:29 pm

First post

Ok, so as the title says, I will be building an over-under gun of about marble caliber. So far what I've got is a 1/8 qev shuttle for actuation, a...

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I just built a very similar gun, mine has a 1 1/2 x 2 foot Sch 40 Pvc chamber

and a 1/2 x 3 foot Sch 40 pvc barrel. I am using a ball valve to shoot...

7 Replies

2732 Views

Last post by nickz
Tue Jul 08, 2008 5:28 am
Sprinkler valve filling

Last post by Carlman
Replies: 2
by Carlman » Tue Jul 08, 2008 3:51 am

First post

could a large sprinkler valve be filled via pilot?

sorry if this is noobish but i have no reason to believe why it could not.

the reason is i want...

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nah mine has a guide rod so it leaks around that (which i removed at stuck and bent through hole)

cool thanks pimpmamm22, expect a shell action...

2 Replies

880 Views

Last post by Carlman
Tue Jul 08, 2008 4:23 am
Sprinkler Valve size

Last post by pizlo
Replies: 10
by Sean » Sun Jul 06, 2008 8:17 pm

First post

I plan on making my first pneumatic gun and have a question about the size of the valve. I want to have a 3/4 inch barrel to shoot paintballs that's...

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30 inch barrel would give you better performance for sure.

10 Replies

2725 Views

Last post by pizlo
Mon Jul 07, 2008 9:50 pm
Harley Davidson - Four Barrel Marauder!

Last post by n-strike
Replies: 19
by Legendpilot » Sat Feb 17, 2007 3:07 pm
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Well I just finished building my new Harley Davidson; spudgun that is.

This thing is just so bad, it deserved a tough name. Dubbed the Four Barrel...

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Do not post in old topics.
19 Replies

11330 Views

Last post by n-strike
Mon Jul 07, 2008 5:12 pm
Pilot valve

Last post by ajb12345
Replies: 4
by ajb12345 » Sun Jul 06, 2008 2:13 am

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I'm going to make a at4 coaxial with a 4 in chamber and a 2 in barrel. The piston seems like its going to be pretty big. I need some ideas on a 4 in...

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thanks for the answer I was thinking a modded valve too. Then I just got this idea but its a bit overkill. Have the piston piloted by a small piston...

4 Replies

1848 Views

Last post by ajb12345
Mon Jul 07, 2008 11:00 am
New Idea - High pressure check valve.

Last post by Mitchza89
Replies: 11
by Mitchza89 » Fri Jul 04, 2008 9:47 pm

First post

Well my parent's have banned me from obtaining a fridge compressor due to the fact I might electricute myself or blow a fuse and start a fire which...

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Yeah definately Geppito, serviceable equipment is always good when you make alot of mistakes like me :D. To limit on how much the o-ring moves, i'll...

11 Replies

3989 Views

Last post by Mitchza89
Mon Jul 07, 2008 2:03 am
Coaxial floating diaphragm issues

Last post by andeh
Replies: 4
by andeh » Sun Jul 06, 2008 9:57 pm

First post

Hello all.. I don't know if anyone remembers me but I've been spudgunning since the old old spudtech forums were up.. got a problem with a new gun I...

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As I mentioned in my OP, the valve was initially used on a gun that used a 4 chamber and the same type of valve and that worked so it should be more...

4 Replies

2449 Views

Last post by andeh
Sun Jul 06, 2008 10:31 pm
Cant belive Im asking this, kind of question

Last post by pizlo
Replies: 8
by Maniac » Sun Jul 06, 2008 8:05 pm

First post

You guys are going to hate me for this but its the classic sprinkler valve question. Ok I have moded four sprinkler valves so far so dont think that...

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First pic, best of luck!

8 Replies

2737 Views

Last post by pizlo
Sun Jul 06, 2008 10:13 pm
Single barrel preloaded cartige gun

Last post by blind909
Replies: 12
by blind909 » Fri Jul 04, 2008 11:53 am

First post

Ok, I have finished my preloaded cartrige gun. All credit goes to Davidvaini, since it is his design. I have a blowgun(the ones you get for filling...

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I dont go over 125 psi, but thats just because the plastic wye valve(125 psi garden hose valve), but I am sure you could go well over 200 psi. The...

12 Replies

5461 Views

Last post by blind909
Sun Jul 06, 2008 10:09 pm
Just another 500psi BB gun

Last post by Mitchza89
Replies: 23
by Mitchza89 » Wed Jul 02, 2008 1:01 am
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This is my latest throw together from spare parts. It's nothing special but I love the aluminium 8mm ID barrel. I'm able to get to 350+psi with my...

Last post

When my mates are over, usually 50 or so times in a night. Ya arm's don't at all get tired with my pump because of it's low volume. It's even a...
23 Replies

8918 Views

Last post by Mitchza89
Sun Jul 06, 2008 7:19 pm
PVC pressure max

Last post by clide
Replies: 17
by burgerace69 » Sat Jul 05, 2008 4:18 pm
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I need to know what a safe max pressure for pvc is using about a 2 barrel. Also, what would be a typically used pressure (not necessarily safe), what...

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:shock: hehe uh yes i actually am starting on a new hybrid project...the problem is that i cant weld...

They make a wonderful thing called threaded...
17 Replies

12040 Views

Last post by clide
Sun Jul 06, 2008 5:21 pm
Brog.- Super Soaker problem

Last post by psycix
Replies: 17
by brogdenlaxmiddie » Thu Jul 03, 2008 3:00 pm
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Ok guys, while on a plane to London from China, I drew up some plans for a new super-soaker water gun due to the extreme heat in North Carolina...

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The water will not need any pressure when the gun is upright: the weight of it will just push the piston down.
17 Replies

4351 Views

Last post by psycix
Sun Jul 06, 2008 6:18 am
What would be the best valve...

Last post by psycix
Replies: 15
by Sparow89 » Fri Jul 04, 2008 2:20 pm
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What would be the best valve for a large caliber cannon/mortar.
I want to build a cannon or mortar for paintball with a 2.5-3 bore, but I cannot...

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And with that you mean a 2 porting thus something like a 3 piston?
15 Replies

3909 Views

Last post by psycix
Sun Jul 06, 2008 5:58 am
Mitcho's BB Pistol Mark II

Last post by Mitchza89
Replies: 39
by Mitchza89 » Tue Oct 23, 2007 12:11 am
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I tell ya guys, you just can't get any better then this. I'm surprised the mod worked so well. Anyways enough bullsh!tting, PIC TIME!

Last post

Thanks alot for that mate. Too bad this poor little gun only stayed together for a day before it was ripped apart for something else :D
39 Replies

13937 Views

Last post by Mitchza89
Sat Jul 05, 2008 7:32 pm
Canadians, where do you get your parts from?

Last post by Leonard
Replies: 6
by Leonard » Wed Jul 02, 2008 7:41 pm

First post

Hello everyone! Just a quick question i could not answer from a lot of research on the internet and on the forum.

Everyone here talks about McMaster...

Last post

Thank you all, i'll look up those sites and start working!

6 Replies

3015 Views

Last post by Leonard
Sat Jul 05, 2008 12:07 pm
I found tis site about pneimatic cannons....

Last post by Spuddin
Replies: 1
by fretmelter » Sat Jul 05, 2008 7:23 am

First post

ok i put the .... cuz this site imo is completely lame and i dont like how the guy makes your pay for the stuff. heres the link

ok that page is...

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i think this guy has some tallent, the water balloon mortar's plum bob aiming device is crazy. and he takes his painting serious. thx for the link.

1 Replies

1474 Views

Last post by Spuddin
Sat Jul 05, 2008 7:46 am
mortar

Last post by Davidvaini
Replies: 18
by koolaidman » Sun Jan 13, 2008 7:25 pm
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hey, i had this mortar prototype working, but i just finished the stand today. It's got a 6 x6 (drum bell?) for a mount. Its held up by a bipod with...

Last post

foil tape.. very strong stuff bursts like aluminum foil and is somewhat sticky.
18 Replies

11664 Views

Last post by Davidvaini
Fri Jul 04, 2008 11:32 pm
cant find a part

Last post by DYI
Replies: 4
by daxspudder » Fri Jul 04, 2008 1:22 am

First post

Does anyone know where, or if, a quick connect (male) with a check valve exists(backflow prevention like the female connections have), and where it...

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All hydraulic quick connects I've worked with have a built-in check valve (just a spring loaded ball) on both male and female sides.

If you want...

4 Replies

2341 Views

Last post by DYI
Fri Jul 04, 2008 6:12 pm
Interesting parts

Last post by jackssmirkingrevenge
Replies: 22
by jackssmirkingrevenge » Tue Jul 01, 2008 10:29 am
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We had a reverse-osmosis unit at work that was due to be thrown out, not one to see good parts go to waste I did some scavenging and got my grubby...

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hehe... 81Kg, convenient eh? Though it will more lifting than launching in that case ;)

Interesting to note that it's a double acting cylinder,...
22 Replies

5758 Views

Last post by jackssmirkingrevenge
Fri Jul 04, 2008 6:43 am
Piston problems

Last post by psycix
Replies: 20
by frankrede » Wed Jul 02, 2008 9:25 pm
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Ok guys I am having a major problem
My cannon is nearly complete, but for some reason it doesn't fire correctly, my piston seals and doesn't leak, it...

Last post

You have a lathe?! Then whats your problem?
Order a nylon rod or something and machine out that perfect piston!
20 Replies

4912 Views

Last post by psycix
Fri Jul 04, 2008 6:15 am
The BFS - Poly Piston gun - COMPLETE!

Last post by Mitchza89
Replies: 29
by Mitchza89 » Sun Jun 08, 2008 10:47 pm
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G'day spudders,

It's done. The first all poly piston tee-valve on files' *Takes a bow :D*. I just finished it today. I didn't have the money to get...

Last post

Righteo mate. I'll take some picies tomorrow for ya.
29 Replies

12400 Views

Last post by Mitchza89
Thu Jul 03, 2008 7:02 am

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