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

1665164 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

753709 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

981550 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

1164646 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

465905 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

131379 Views

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

Topics

help with gun optimization

Last post by A-98
Replies: 1
by A-98 » Mon Feb 05, 2007 8:39 pm

First post

hey, i dont have acess to GGDT and even when i do, im no master with it.

i wanted any input on optimizations for my gun, such as slight increade in...

Last post

in case your wondering this is related to the mini-mega-launcher topic

1 Replies

2647 Views

Last post by A-98
Mon Feb 05, 2007 10:05 pm
witch sprinkler valve???

Last post by ballad of NJ
Replies: 22
by mopherman » Sat Feb 03, 2007 8:26 pm
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Hey, ive been using ball valves for my last guns but now i want to upgrade. IM going to home depot tomorrow. IS the any kind of sprinkler valve thats...

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mopher your not going to beat me repeat not! o and i need help looking for a good air chamber
22 Replies

6521 Views

Last post by ballad of NJ
Mon Feb 05, 2007 7:22 pm
Puctured Burst Disk

Last post by LGM
Replies: 3
by LGM » Mon Feb 05, 2007 2:49 pm

First post

Would a burst disk with a hole puched in it while under pressure burst as fast as one that goes from pressure alone?

Last post

I saw the QCTBDC today and I have been planning something similar for the last day or two, I want to enter it in the spudshot competition.

3 Replies

1416 Views

Last post by LGM
Mon Feb 05, 2007 4:53 pm
gas efficent semi bolt

Last post by iknowmy3tables

by iknowmy3tables » Mon Feb 05, 2007 4:00 pm

I thought of this bolt system, I don't know if I've seen something similar, but can't find now. but hear is a gas acuated auto loading mechanism, its...

0 Replies

2143 Views

Last post by iknowmy3tables
Mon Feb 05, 2007 4:00 pm
(NEW PICS)schmanman's sniper rifle

Last post by schmanman
Replies: 76
by schmanman » Thu Jan 11, 2007 5:38 pm
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ok, well, it is my bb rifle, but with a different chamber (bigger actually), a stock (obviously), a scope, and a longer barrel, sleeved to make it...

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geez... how cold is it there durring winter?
76 Replies

35315 Views

Last post by schmanman
Mon Feb 05, 2007 2:36 pm
Valve Data in GGDT

Last post by SpudBlaster15
Replies: 9
by demilus » Sun Feb 04, 2007 7:15 pm

First post

Hey guys,
I've just downloaded GGDT and want to calculate for my cannon. The only thing I can't figure out is all the data for my valve. What I have...

Last post

Lorem ipsum dolor sit amet, consectetur adipiscing elit. Cras nec placerat erat. Vivamus dapibus egestas nunc, at eleifend neque. Suspendisse...

9 Replies

3122 Views

Last post by SpudBlaster15
Mon Feb 05, 2007 10:53 am
best barrel length

Last post by Recruit
Replies: 3
by shud_b_rite » Mon Feb 05, 2007 3:06 am

First post

Using ggdt I figured out that for my cannon the best barrel length for achieving maximum speed (m/s) is about 200cm. At the moment my barrel is about...

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What insomniac said. In a pneumatic the friction from the barrel would slow it down after so long because the expanding gas after so far equalizes...

3 Replies

2298 Views

Last post by Recruit
Mon Feb 05, 2007 4:31 am
1" or 2" porting valves?

Last post by A-98
Replies: 8
by A-98 » Sun Feb 04, 2007 2:31 pm

First post

well, lately i have had the desire to build something a little bit more powerfull, yet still compact.

my question is , should i go with a 2 supah...

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ya, i know.
i said it was going to be a 1/3 replica.

8 Replies

3046 Views

Last post by A-98
Sun Feb 04, 2007 7:53 pm
perpendicular QEV gun

Last post by frankrede
Replies: 10
by sjog » Sat Jan 27, 2007 6:00 pm

First post

4x34
SG gb barrel-5'
Inline blo valve
400yds.-Google verified

Last post

Did both you guys miss the whole turret mounted type theme? Yep

10 Replies

3277 Views

Last post by frankrede
Sun Feb 04, 2007 2:21 pm
What would fit paintballs better?

Last post by noname
Replies: 18
by akaddis » Thu Feb 01, 2007 5:05 pm
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What would fit paintballs better?

1/2 SDR 21 or 3/4in sch80????

I was told that sdr21 is hard to find?

Tell me what you think.

Thx

Andrew

Last post

Ah ha! :D
Brain fart. :oops:
18 Replies

8622 Views

Last post by noname
Sun Feb 04, 2007 12:23 pm
coxial question any help?

Last post by noname
Replies: 7
by maz oner » Mon Jan 29, 2007 9:58 pm

First post

Im just about to solder up my Copper Coaxial (1/2 barrel/ 1 chamber and was wondeing what to use for the barrel suport (where the barrel is exactly...

Last post

just use a tripod if your worried your barrel will snap

Read the original post, a tripod won't help too much on the inside of the chamber. For...

7 Replies

2868 Views

Last post by noname
Sun Feb 04, 2007 12:19 pm
how do you do this

Last post by MrCrowley
Replies: 6
by fraudready » Sun Feb 04, 2007 1:55 am

First post

first off this isnt my gun, im gonna try to
replicate this gun but i cant seem to figure
out how to attach the pressure gauge and
the schrader valve...

Last post

Yes. Say its a 1/8 brass nipple on the gauge, you would drill about a 7/64 hole?(I use metric,so whats the next size down from 1/8 ?).

Crowley,...

6 Replies

2748 Views

Last post by MrCrowley
Sun Feb 04, 2007 6:15 am
B.A.C. Gun / battery cannon

Last post by SpudBlaster15
Replies: 8
by Brooner115 » Mon Jan 29, 2007 6:03 pm

First post

This is my B.A.C. Gun it means Battery Annialating Cannon. I normally shoot batteries but its so powerful that once i shoot them they bend and...

Last post

Lorem ipsum dolor sit amet, consectetur adipiscing elit. Cras nec placerat erat. Vivamus dapibus egestas nunc, at eleifend neque. Suspendisse...

8 Replies

3129 Views

Last post by SpudBlaster15
Sun Feb 04, 2007 3:49 am
tennis ball cannon.....

Last post by $lil spud$
Replies: 5
by newkidspudster » Sat Feb 03, 2007 11:49 am

First post

Can someone please give me plans for a pnewmatic tennis ball cannon.ive never made a pnewmatic befor and i want to make a tssis ball cannon to shoot...

Last post

I am also trying to make a tennis ball cannon 2 thanks 4 the plans!!!! :glasses6: :glasses5: :glasses4:

5 Replies

7094 Views

Last post by $lil spud$
Sat Feb 03, 2007 10:26 pm
Calculating pressure

Last post by boilingleadbath
Replies: 6
by shud_b_rite » Fri Feb 02, 2007 3:31 am

First post

Im not sure if i posted this in the right section but moderators are welcome to move it.

Say I have a bike pump that holds 100cc (cubic...

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Not quite true, joanna; the pump has a miminal volume, so the efficiency (and therefore introduced quantity) decreases as the pressure increases....

6 Replies

2459 Views

Last post by boilingleadbath
Sat Feb 03, 2007 8:52 pm
How many PSI can brass 1/4" and 1/8" fittings take

Last post by Hotwired
Replies: 7
by c19o » Fri Jan 26, 2007 11:29 pm

First post

How many PSI can brass 1/4 and 1/8 fittings take? and also steel or galvanized steel fittings. I asked alot of people and they didn't know. I also...

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You'd need godawfully high pressure to cause pressure line fittings to burst.

I'm using 1/4 fittings intended for compressed air systems and they're...

7 Replies

21155 Views

Last post by Hotwired
Sat Feb 03, 2007 4:20 pm
pistons diaphrams

Last post by Velocity
Replies: 17
by iknowmy3tables » Tue Jan 16, 2007 1:38 pm
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Diaphrams!! Pistons!! everyone is using pistons and I never see many good diaphram these days, whats the differnce? why pistons?

Last post

The way I see it, whether you build a piston valve or a diaphragm valve really depends on how big of a space you have to store your spudgun....
17 Replies

5498 Views

Last post by Velocity
Fri Feb 02, 2007 10:45 am
Paintball Tank Armament

Last post by Velocity
Replies: 9
by judgment_arms » Thu Feb 01, 2007 2:47 pm

First post

I was searching the net and I came across this page: The Burgles Cannon
Although it has a lot of dead volume, with a good tee valve, or even a...

Last post

That gun on advanced spuds has stumped me many times. At first glance (like a year or two ago), I agreed with you guys; its just a sprinkler valve....

9 Replies

2115 Views

Last post by Velocity
Fri Feb 02, 2007 10:38 am
Let me introduce myself...

Last post by Cojaro
Replies: 27
by Cojaro » Wed Jan 31, 2007 9:09 am
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First off, I'm not really a novie at this stuff. I've looked into and researched pneumatic spudguns at length. Something about launching things...

Last post

Behold, the so-called highly detailed blueprints of my master plan .
27 Replies

8777 Views

Last post by Cojaro
Fri Feb 02, 2007 10:34 am
homemade valves leak...

Last post by keep_it_real
Replies: 7
by keep_it_real » Wed Jan 31, 2007 8:32 pm

First post

So the valve you can see in the second picture leaks along with the two others inside. I used the zero semi auto valve idea from nerfhaven.com which...

Last post

okey doke...

any semi valve suggestions? or links.

7 Replies

2883 Views

Last post by keep_it_real
Fri Feb 02, 2007 1:32 am
Hot glue piston

Last post by MrCrowley
Replies: 8
by Mr.Russ » Thu Feb 01, 2007 7:50 pm

First post

Last night I made myself a hot glue piston, and i cracked it ouf ot the pvc today...

Its for a 1 chamber, i have the chamber, the piston doesnt fit...

Last post

Cut it off make it bigger or add an extension to it. You just need a air compressor with a tank and the piston will easily seal,or you could add...

8 Replies

2299 Views

Last post by MrCrowley
Fri Feb 02, 2007 12:04 am
how do i make silencer for my pneumatic

Last post by VH_man
Replies: 15
by tylerthetatertosser » Fri Jan 26, 2007 3:46 pm
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i was wondering if any one could tell me an easy way to make silencer and not lose any fps on my sniper pnematic

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My first Cannon made no noise whatsoever. my second cannon (4 inch chamber, 1.5 inch barrel coaxial) was a LOUD little bugger when it went off. The...
15 Replies

9805 Views

Last post by VH_man
Thu Feb 01, 2007 11:17 pm
small, compact, powerfull gun

Last post by A-98
Replies: 7
by A-98 » Thu Feb 01, 2007 9:05 pm

First post

im looking into building a small, yet powerfull gun. im thinking an over-under cannon with 2 chambers, roughly like the mega launcher, but with 2...

Last post

specifics, specifics, specifics...

thanks anyway tho

7 Replies

2565 Views

Last post by A-98
Thu Feb 01, 2007 11:14 pm
Mini(sorta) triggered burst disk cannon

Last post by A-98
Replies: 15
by A-98 » Wed Jan 31, 2007 1:01 am
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this weekend it was raining and i went to the hardware store to buy some supplies for a new cannon. i had never made a burst disk cannon, and wanted...

Last post

ya. im still scared of it tho :shock:
15 Replies

7480 Views

Last post by A-98
Thu Feb 01, 2007 10:42 pm
Need a tank

Last post by canadian
Replies: 9
by canadian » Wed Jan 31, 2007 9:53 pm

First post

well, im in the process of building a golf ball cannon, and need some thoughts on what i should do.

i and constructing the entire cannon from steel....

Last post

Yellow=steel
Red=rubber
Green=hardware (nuts, bolts, washers, ect)

there are 2 valves at the bottom (drawn as ball valves, but i will use an air...

9 Replies

3065 Views

Last post by canadian
Thu Feb 01, 2007 10:18 pm

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