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

1202062 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

605086 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

858008 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

1021005 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

392672 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

100091 Views

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

Topics

dual chamber

Last post by psycix
Replies: 4
by rp181 » Tue Feb 05, 2008 5:47 pm

First post

Is there any thing particularaly wrong about using a dual chamber for pneumatic? Both chambers are metal and im using the gun at about 50 PSI (Bike...

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The only reason for me to do a dual chamber is to do a dual valve.

4 Replies

1354 Views

Last post by psycix
Thu Feb 07, 2008 9:04 am
The Proper C:B ratio

Last post by mark.f
Replies: 6
by The_Kangsta » Wed Feb 06, 2008 11:12 am

First post

Im building a Pneumatic gun with a 1/2 inch barrel and a 3/4 inch stock. I know that combustion launchers have a C:B ratio, but I don't know what the...

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I think the most annoying thing about this question is its complexity to answer definitely... without a little more input from the questionee.

What...

6 Replies

1798 Views

Last post by mark.f
Thu Feb 07, 2008 8:30 am
Frankenburstdisk - added videos

Last post by jackssmirkingrevenge
Replies: 26
by jackssmirkingrevenge » Mon Jan 07, 2008 1:42 pm
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I've often mentioned making launchers out of the pipe fittings at work, well I bought myself a half decent cellphone recently, looks a bit like an...

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If it were up to me I'd be making 4 plus cannons, sadly I just don't have the space living in an urban area.

After the window incident things have...
26 Replies

10196 Views

Last post by jackssmirkingrevenge
Thu Feb 07, 2008 5:53 am
A cannon for a friend

Last post by frankrede
Replies: 21
by frankrede » Thu Dec 27, 2007 11:09 pm
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This is a cannon that I built for my friend Jose.
In my opinion this is the best cannon I have built to date.
I plan on making a clone for myself....

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What do you mean?
My valve is threaded, as are all of the fittings
21 Replies

7975 Views

Last post by frankrede
Wed Feb 06, 2008 11:48 pm
RPG simulator

Last post by ThatGuyDan
Replies: 43
by ThatGuyDan » Sat Jan 12, 2008 6:26 pm
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First off.. Thank you Spudfiles... I made this spudgun with information from this site..
.. I am in the Army and we train soldiers that are...

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I got this paticular nerf round at Meijers... I don't see too many left at the stores when I go.. sooo they may be discontinuing them.. they are made...
43 Replies

19792 Views

Last post by ThatGuyDan
Wed Feb 06, 2008 7:04 pm
Dual QEV Paintball LAW

Last post by peeeto
Replies: 34
by peeeto » Mon Jan 14, 2008 12:20 pm
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Prototype Specs:

Barrel: 24 - 2 dia sch40 PVC
Primary Valve: 3/4 QEV
Secondary Valve: 1/4 QEV (pilots the Primary)
Secondary Pilot: blowgun...

Last post

here's a sketch of the final design. shouldn't change much from this (just placed the parts order last night):

may i present the wHUMPgUN !:

(not...
34 Replies

13840 Views

Last post by peeeto
Wed Feb 06, 2008 2:48 pm
Pneumatic sniper plans

Last post by jackssmirkingrevenge
Replies: 15
by koolaidman » Mon Feb 04, 2008 6:42 pm
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Hey im in the process maybe making a new gun. I had to draw up some skematics to show to my friend and i also rendered it in 3d. Im running this...

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Free floating barrels are hardly a concern when a vast proportion of spudders fire less than perfect ammo from smoothbore barrels

That's the thing...
15 Replies

7070 Views

Last post by jackssmirkingrevenge
Wed Feb 06, 2008 10:27 am
L1?

Last post by psycix
Replies: 12
by elitesniper » Mon Feb 04, 2008 9:30 pm

First post

hey guys do you know what size chamber the mini L1 was on burtlatke?

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who said i was copying? lol i just wanted to know what size pipe it was thats all.
If you just wanted to know would it be worth starting a topic...

12 Replies

1433 Views

Last post by psycix
Wed Feb 06, 2008 6:10 am
basic copper pnuematic pnuematic

Last post by jook13
Replies: 5
by jook13 » Wed Feb 06, 2008 2:51 am

First post

So here is my first pneumatic. went for copper with a modded sprinkler valve. This was done mainly for practice.

The chamber is 25 inches by 1...

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You forgot about being able to take a piston valve (for the most part) to a higher pressure, thus making for a more powerful shot, if that's what is...

5 Replies

3170 Views

Last post by jook13
Wed Feb 06, 2008 4:41 am
Friends gun blows up- vid

Last post by goathunter
Replies: 19
by nabu92 » Mon Feb 04, 2008 10:31 pm
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My friends gun blows up right in front of me and I only have one thing to say...ROFL!!!!!!!!!! That had to be the funniest thing ever. His fittings...

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I would think that it would possibly hold 50 psi on JUST 4 hours of curing time.

Rag, I find myself agreeing with you.I've done tons of PVC repairs...
19 Replies

6439 Views

Last post by goathunter
Tue Feb 05, 2008 10:52 pm
can the barrel be the same size as the ball valve?

Last post by spudy buddy
Replies: 7
by Pilgor » Mon Feb 04, 2008 7:27 pm

First post

If I wanted a 2 barrel, can the ball valve be two inches (it is a metal ball valve) will the barrel just screw in to the valve?
sorry for all the...

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my first one was a moded sprinkler valve and all the parts cost about $25.

for a first a ball valve is fine but like josh 121 said it would be a...

7 Replies

2702 Views

Last post by spudy buddy
Tue Feb 05, 2008 7:22 pm
725PSI Solenoid Valve

Last post by MrCrowley
Replies: 16
by MrCrowley » Fri Feb 01, 2008 1:58 am
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Just found a 3/4 solenoid valve for diesel applications with operating pressures of up to 725PSI, or 50BAR on an Auction site. I asked for more...

Last post

Let me rephrase, You could add a BLow gun to this, but there is no point what so ever, as the Solenoid on top of this does not suffer from the same...
16 Replies

4226 Views

Last post by MrCrowley
Tue Feb 05, 2008 5:38 am
I need help with plans

Last post by fireman565
Replies: 30
by Pilgor » Sat Feb 02, 2008 4:33 pm
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My friend just built a dual chambered pneumatic spud cannon. It looked good so i was about to use his plans. but then his gun blow up. He was using...

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Is there a thread or something somewhere that will show me what all these different parts look like?

Try these... It may give you an idea of what...
30 Replies

6946 Views

Last post by fireman565
Tue Feb 05, 2008 1:46 am
DWV Barrel

Last post by potatoflinger
Replies: 11
by maxfreke88 » Tue Jan 29, 2008 8:58 pm

First post

Is it O.k. to use 1.5 inch DWV (NSF) pipe for a paintball grenade barrel? its only going to use a sabot for shooting them.(does it matter). Is it...

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I bet you could use GGDT to estimate the pressure on your barrel as the gun fires. If you input the specs of your gun, calculate, and switch the...

11 Replies

3604 Views

Last post by potatoflinger
Mon Feb 04, 2008 8:16 pm
CV, flow effeciency etc.

Last post by Ragnarok
Replies: 8
by POLAND_SPUD » Sun Feb 03, 2008 12:57 pm

First post

Is there any page that has a list of valves' flow coef. ?
what do you think what is the flow coef of 1/2 QEV ?

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Well maybe its possible to measure the flow of your custom valve in the same way manufacturers do.
Of course, but only if you want to spend large...

8 Replies

2787 Views

Last post by Ragnarok
Mon Feb 04, 2008 6:20 am
Centering the Barrel in a coaxial

Last post by psycix
Replies: 11
by SpudUke5 » Mon Jan 28, 2008 12:07 am

First post

Well the title basically says it.

I have some salvaged parts and i am making a coaxial with it. I finished it today, but there is one question that...

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@ Gippeto:
Yup, 1/3 would be fine.
But dont make the stabilizer too flow constrictive.

11 Replies

3131 Views

Last post by psycix
Mon Feb 04, 2008 5:32 am
help with first pneu cannon design

Last post by psycix
Replies: 6
by cioeboy » Sun Feb 03, 2008 5:28 pm

First post

This will be my first pneumatic cannon so I have very little experience in this but I have a basic understanding (read: I have been reading the wiki...

Last post

It may be hard to wathc your fitting, but do try:)
one thing to keep in mind is chamber barrel ratios, its a very easy way to maximize your power....

6 Replies

1259 Views

Last post by psycix
Mon Feb 04, 2008 5:27 am
Can i use any sprinkler valve

Last post by jackssmirkingrevenge
Replies: 8
by chicagobears10 » Fri Feb 01, 2008 8:56 am

First post

i am building my second pneumatic and i am planning now i have decided on a 25mm sprinkler valve but i have looked at a fair few cannons and they all...

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I should have known you'd drag that up :? :D

I've had a weekend away from spudfiles, go easy on me :P :)

8 Replies

1773 Views

Last post by jackssmirkingrevenge
Mon Feb 04, 2008 3:01 am
200psi metal cannon Update:lots of damage pics

Last post by DYI
Replies: 25
by bigbob12345 » Mon Jan 28, 2008 1:13 pm
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Okay well this was my first pneumatic. I made it about a year ago and back then I was worried about the pvc exploding so I made it out of metal.It...

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Sorry about the late response. The C:B ratio for the current SCTBDC is ~0.16:1 with the 3 x 144 barrel (which I'm not allowed to use in my yard...
25 Replies

7427 Views

Last post by DYI
Sun Feb 03, 2008 9:11 pm
5 min epoxy

Last post by frogy
Replies: 12
by xboxteen01 » Tue Jan 29, 2008 7:13 pm

First post

i modded my sprinkler valve with a 1/4 npt barb and had a small air leak. so i picked up some 5 min epoxy from home depot for like 2 bucks and put it...

Last post

I also use Loctite 5 minute epoxy... All the time...

If you push the syringes in unevenly, you will mess up the 1:1 ratio of hardener to resin......

12 Replies

7161 Views

Last post by frogy
Sun Feb 03, 2008 9:12 am
Asco valve

Last post by sjog
Replies: 6
by sjog » Sat Feb 02, 2008 8:38 pm

First post

[url= .jpg

Put this together this afternoon.
I was surprised at the power and noise. Shot GB's at 80lbs.
Wanted to put bolt action barrel from...

Last post

The diaphragm is rather snug or taunt against the seat.

I will get the chronograph out.The weather has been mild in the NE.
Oh ya I can shoot in...

6 Replies

2346 Views

Last post by sjog
Sat Feb 02, 2008 10:13 pm
copper barrel sealing piston valve.

Last post by Sticky_Tape
Replies: 19
by tylerthetatertosser » Thu Sep 06, 2007 7:42 pm
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this is my brand new copper barrel sealing piston valved connon, I had some issues with leaks so thats why there is epoxy all over the place, Im not...

Last post

That`s a nice gun but do you think that the curve in the chamber would take from the guns preformance?
19 Replies

10343 Views

Last post by Sticky_Tape
Sat Feb 02, 2008 9:41 pm
Sprinkler Valve Potato sniper

Last post by ghostman01
Replies: 4
by ghostman01 » Sat Feb 02, 2008 4:13 am

First post

Heres my Potato sniper it uses a sprinkler valve to actuate it and so forth ....

go to my website for Pictures and video bacause if i put them all...

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thanks yeah it looked better when all the paint was still on there lol

4 Replies

3902 Views

Last post by ghostman01
Sat Feb 02, 2008 8:59 pm
Triggered Burst Disk Trouble

Last post by DYI
Replies: 11
by Zippster » Fri Feb 01, 2008 2:21 pm

First post

So I've finally decided upon a triggered burst disk design for my upcoming howitzer, but I can't seem to get my proof-of-concept rig working. I...

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How often do you use GGDT? It quotes a muzzle velocity of 365fps with a 1 pound projectile with your current design at 100 psi. At 150 psi, the...

11 Replies

2039 Views

Last post by DYI
Sat Feb 02, 2008 7:58 pm
Tyler's Air Soft Gun.

Last post by bigbob12345
Replies: 14
by tylerthetatertosser » Mon Oct 29, 2007 12:35 am

First post

This is my Air soft co-axial cannon. I have had this for a while but never posted.

The over all length is about 16.5 inches, the barrel length is...

Last post

very nice gun kinda like what Im currently working on exept mines pvc.

14 Replies

8435 Views

Last post by bigbob12345
Sat Feb 02, 2008 5:22 pm

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