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...

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thank you for creating this website is there anything i can do to help
15 Replies

1672772 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

756228 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

983660 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

1166617 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

467183 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

131683 Views

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

Topics

It using a CO2 tank that dangerous?

Last post by pizlo
Replies: 42
by Erlex » Mon Dec 17, 2007 11:14 pm
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My question is concerning how well PVC piping will hold up after it is filled with CO2 and fired multiple times. To my knowledge, PVC gets brittle...

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The only thing necessary for plasma rounds is a way to produce stable plasma (funny I know) with extreme cohesion and little adhesion. Also why do...
42 Replies

10252 Views

Last post by pizlo
Mon Dec 31, 2007 12:20 am
Is this ok?

Last post by elitesniper
Replies: 38
by elitesniper » Sun Dec 30, 2007 7:35 pm
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Hey guys , i just posted this topic to ask you guys if im doing my piston right so here are pics .

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ah yes thanks now i can go to home depot :D , wait nevermind. haha there closed its late :(
38 Replies

5849 Views

Last post by elitesniper
Sun Dec 30, 2007 11:15 pm
QEV or piston valve

Last post by ALIHISGREAT
Replies: 22
by Gunner » Sun Dec 30, 2007 1:26 pm
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If you have 1 QEV and 3/4 piston valve that is built up well,what do you think,which one wins? :wink:

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I recently soldered together a copper gun with a small calibre brass barrel. I took it to 350 without trouble. I admit that I was more nervous about...
22 Replies

6350 Views

Last post by ALIHISGREAT
Sun Dec 30, 2007 10:04 pm
Asco 2 way High Flow Main Pulse Valve (big pics!!!)

Last post by Carlman
Replies: 45
by unisonmind » Fri Dec 28, 2007 3:16 pm
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so i know everyone has been looking at this valve on ebay and i got my 2 today so i opened it up and got out the camera

it can be filled from the...

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yea, nothing like booze to make an arse outa yourself lol
45 Replies

14201 Views

Last post by Carlman
Sun Dec 30, 2007 8:44 pm
antique airgun

Last post by jackssmirkingrevenge
Replies: 49
by jackssmirkingrevenge » Fri Dec 28, 2007 6:53 pm
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I was visiting an old armoury, one of the guns on display was an early airgun with a copper ball reservoir, just like the ones shown here ....

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It's all very well saying in the 21st Century we have access to all sorts of alloys and machine tools etc, but when it comes down to it, very few of...
49 Replies

14461 Views

Last post by jackssmirkingrevenge
Sun Dec 30, 2007 3:48 pm
Crank handle air compressor

Last post by iknowmy3tables
Replies: 21
by Mitchza89 » Sat Dec 29, 2007 5:22 am
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I had the idea of taking a compressor block off a crappy slow 12v air compressor, mounting it to a stand and adding a large turn handle on it. either...

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even a bike has high rpm to run a stirup pump, and it has suports on both sides of the axle,
you know cranking or pumping is pretty much the same, a...
21 Replies

5733 Views

Last post by iknowmy3tables
Sun Dec 30, 2007 11:38 am
pneumatic mortar

Last post by Carlman
Replies: 22
by Eddbot » Sun Dec 23, 2007 12:01 am
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i was thinkin about makin a pneumatic mortar for airsoft, and was wondering if anyone knew how a real mortar actually works, and i know someone's...

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yes please do as it saves me having to do it lol, if it works then tell me!

and why would you think of presuring round oh well its an idea to play...
22 Replies

5312 Views

Last post by Carlman
Sun Dec 30, 2007 5:42 am
150,000psi??

Last post by jon_89
Replies: 22
by pat123 » Sat Dec 29, 2007 12:45 pm
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I found this website looking for valves for potato guns but I was wondering how they get the pressure of whatever they are using it on up to that...

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That was for a .5 inch by 8 inch chamber and a .25 inch 16 inch barrel.
22 Replies

5225 Views

Last post by jon_89
Sat Dec 29, 2007 10:08 pm
First burst disc cannon

Last post by rp181
Replies: 12
by rp181 » Sat Dec 29, 2007 2:59 pm

First post

This is my first spudgun, originally built as a combustion, but i found it works better as a pneumatic =)

Barrel: 3/4in PVC ~2ft. long
Chamber: 1...

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I did 3 shots, and i dont plan to do any more, but i just couldn't resist 8) .

Also i put a plug to seal the end, and a bushing for the other side,...

12 Replies

3500 Views

Last post by rp181
Sat Dec 29, 2007 9:20 pm
Weird gauge issue

Last post by Novacastrian
Replies: 5
by lemmiwinks » Sat Dec 29, 2007 1:29 pm

First post

So I dropped a gauge, and now it seems like the needle is zeroed in at 20 PSI. The weird thing is that the gauge still works, but I don't know how...

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I found that you can zero gauges, there is a thin strip of brass that connects the copper bladder , the thing that actually moves when compressed air...

5 Replies

1665 Views

Last post by Novacastrian
Sat Dec 29, 2007 8:22 pm
SGP - Metal QEV Cannon

Last post by MrCrowley
Replies: 14
by MrCrowley » Sat Oct 06, 2007 8:19 pm

First post

This is my second gun from the supplies I got from America.

This one is called SG - Penetrator because of the awesome damage it can do with a...

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I don't know much about QEV's but couldn't you trigger the valve with a blow gun???? because all the ball valves makes it look a little bulky...but...

14 Replies

4376 Views

Last post by MrCrowley
Sat Dec 29, 2007 6:01 pm
ID for 3/4in chinese steel pipe

Last post by Mitchza89
Replies: 10
by Mitchza89 » Fri Dec 28, 2007 8:58 pm

First post

Urgh sorry for another post but I'm not having any luck. I'm after a galvanised steel barrel for my 300psi marble gun but I'm not having any luck...

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Yeah thats what I reckon too mate. Just my luck, I just went to Metal Corp and it closes on a saturday at 11am, and I happen to get there at...

10 Replies

3026 Views

Last post by Mitchza89
Sat Dec 29, 2007 4:16 am
High pressure foot pump?

Last post by tansit234
Replies: 7
by Mitchza89 » Fri Dec 28, 2007 8:15 pm

First post

Hey guys,

I've had the idea of moding a simple el cheapo' foot pump into a 300psi monster by completely rebuilding the steel frame around it, adding...

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Hand crank and a jack shaft? Just buy a small bore air ram and check valves coupled to a geared down (or up) hand crank and crankshaft. If you get a...

7 Replies

1785 Views

Last post by tansit234
Sat Dec 29, 2007 2:13 am
semi auto questions

Last post by jackssmirkingrevenge
Replies: 31
by dyldo » Mon Dec 17, 2007 3:50 am
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heres the plan.
making a semi auto mechanism for 6mm - 1/4inch projectiles using Clides slider design. the barrel and mechanism will be encased in...

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An easier way of doing it is to get some tube that fits exactly in the barrel, cutting a 20m length of it, putting a small piece of lead inside and...
31 Replies

8331 Views

Last post by jackssmirkingrevenge
Fri Dec 28, 2007 11:37 pm
how does a Crosman model 1400 valve work?

Last post by Hawkeye
Replies: 17
by jean » Fri Dec 28, 2007 4:48 pm
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yeah see topic titel

i search on google homemade airgun and find at the first result a copper rifle it works with this valve.

by jean

Last post

That's not the same valve.
17 Replies

16790 Views

Last post by Hawkeye
Fri Dec 28, 2007 9:52 pm
Q.E.V

Last post by SpudUke5
Replies: 17
by jon_89 » Tue Dec 25, 2007 7:56 pm
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I am going to get a quick exhaust valve but I cant find one online. Where can I get one for cheap? I have looked on mcmaster but cant find them. One...

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Well you can also use this valve .

At 10 bucks, there is no way you can pass this deal up. Even though it maybe overkill, just make a...
17 Replies

7702 Views

Last post by SpudUke5
Fri Dec 28, 2007 6:40 pm
My semifinished cannon.

Last post by Gunner
Replies: 4
by Gunner » Wed Dec 26, 2007 9:24 am

First post

As you can see, my cannon is almost ready in principle and I have taken some shots and worked fine pressures 1-2bar with blowgun as pilot valve and...

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I will add this to the Cannons when I get my rest parts and then I tell you more details :wink:

4 Replies

1461 Views

Last post by Gunner
Fri Dec 28, 2007 7:49 am
6 footer

Last post by blind909
Replies: 8
by blind909 » Thu Dec 27, 2007 5:54 pm

First post

here is my newest edition, it is a 6 ft 2 inch pneumatic cannon, the chamber is about 5 feet of 1 1/2 inch pvc, some elbows, and the barrel is 1 inch...

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it only takes about 30 seconds to get it to get it up to 60 psi

8 Replies

2642 Views

Last post by blind909
Thu Dec 27, 2007 11:44 pm
interchangable barrels

Last post by grumpy
Replies: 4
by blindbatjosh121 » Thu Dec 27, 2007 3:43 pm

First post

Sorry about the last post. I was in a hurry and did a horrible job. What I meant ( to clarify any thoughts) was if i could use interchangeable...

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you should build everything to the size of your largest barrel, you will not have a loss of power changing from bigger barrel to smaller barrel.

4 Replies

3033 Views

Last post by grumpy
Thu Dec 27, 2007 5:43 pm
Christmas Present for Max

Last post by POLAND_SPUD
Replies: 8
by MaxuS » Thu Dec 27, 2007 1:04 pm

First post

Well this is my present to myself.
Basically the same as the spudgun I made for my mate Nic, but I did change a couple of things.
Changes:
Piston is...

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looks great... try shooting 1/2 ball bearings with his and post some dammage videos or pics...

8 Replies

5167 Views

Last post by POLAND_SPUD
Thu Dec 27, 2007 5:42 pm
Solenoid Piston Valve

Last post by dewey-1
Replies: 10
by Pilgrimman » Thu Dec 27, 2007 3:13 pm

First post

I hope this hasn't been suggested...

I thought it'd be cool to use a solenoid to activate a piston. It would allow you to fill from anywhere, and it...

Last post

--

10 Replies

3668 Views

Last post by dewey-1
Thu Dec 27, 2007 4:35 pm
Large pneu. cannon help

Last post by Fnord
Replies: 26
by brogdenlaxmiddie » Wed Dec 26, 2007 2:59 pm
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Hello!-
What would the best release system be for a cannon with 2 8'x4 chambers and a 2 barrel? Currently, i have a large bronze ball valve. I was...

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You mean the piston, or the thing that stops the piston when it comes back?

Pistons can usually be made from lightly sanded PVC end caps with a...
26 Replies

6055 Views

Last post by Fnord
Thu Dec 27, 2007 3:13 pm
Solinoid valve out of irrigation system?

Last post by Bubba05
Replies: 13
by Bubba05 » Wed Dec 26, 2007 11:47 am

First post

I just had a thort.
Over the summer i've been helping mu uncle out with some land scaping and we been installing solinoid valves into a irrigation...

Last post

Thanks for the help guys! heaps handy.
This is all handy stuff for a bloke to know!

To be honest in not to keen on modding things im a off the...

13 Replies

2701 Views

Last post by Bubba05
Thu Dec 27, 2007 7:33 am
low/no power-mini metal coax

Last post by jackssmirkingrevenge
Replies: 7
by Pyro Ninja » Wed Dec 26, 2007 1:51 am

First post

Normally I wouldn't post about a small problem like this one but I am getting really tired of screwing around with piston valves.
Well I have a...

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What kind of power should I expect at say, 200-300psi

two-three times what you're currently getting. 15mL is the sort of volume I use as a minimum...

7 Replies

1757 Views

Last post by jackssmirkingrevenge
Wed Dec 26, 2007 9:58 pm
SGI - Simple Paintball Gun

Last post by Ragnarok
Replies: 32
by MrCrowley » Fri Oct 05, 2007 10:57 pm
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Well this is part of my imported stuff I got From America,
I call it SGI, as you may or may not know I name all my guns with SG (don't ask, it's...

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I'll die before I make a clone of someone elses design.
No really.
A bit extreme, but I would agree, I won't make an exact clone of anyone else's...
32 Replies

10531 Views

Last post by Ragnarok
Wed Dec 26, 2007 8:47 pm

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Pneumatic Cannons

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