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

893023 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

434381 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

366542 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

611865 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

325951 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

77387 Views

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

Topics

differences in qev brands

Last post by clide
Replies: 6
by grumpy » Wed Nov 21, 2007 5:22 pm

First post

well a friend of mine gave me a couple of qev's , all the cannons that i have built have been with sprinkler valves, so i don't realy know to much...

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One of the nice things about QEVs is that the manufacturer often lists their flow rate on their websites, so you could probably look up your specific...

6 Replies

1720 Views

Last post by clide
Thu Nov 22, 2007 11:20 pm
Watto's Sprinkler Cannon

Last post by jackssmirkingrevenge
Replies: 17
by watto » Mon Oct 01, 2007 9:11 pm
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Well my gun is pretty much finished, I might give it another coat of paint if I get a chance and I'm still waiting on a green laser laser pointer...

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it took you a couple of months but better late then never :D bring on the vids, you'll be amazed what a difference a few psi make.
17 Replies

6203 Views

Last post by jackssmirkingrevenge
Thu Nov 22, 2007 5:51 am
Cost?

Last post by elitesniper
Replies: 17
by elitesniper » Wed Nov 21, 2007 8:45 pm
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Does anyone know the rough cost of breakline in the USA? If so they would probably be sold in autozone or any car auto shop right?

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well ill post a pick of my bbmg i just assembled but the tank is still in devolpement so ill just explain ok so i use two 2 inch elbows connect them...
17 Replies

3905 Views

Last post by elitesniper
Wed Nov 21, 2007 11:54 pm
QEV airsoft gun

Last post by potatoflinger
Replies: 23
by potatoflinger » Fri Nov 02, 2007 9:17 pm
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This is my latest gun, it's a 1/4 QEV airsoft gun. The air chamber is made out of 3/4 black iron pipe, and the barrels are 5/16, and 1/4 brakeline. I...

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oh, wow. way for me to look. it looked like painted elbows on white PVC.......

MY BAD
You must've seen the teflon tape.
23 Replies

8339 Views

Last post by potatoflinger
Wed Nov 21, 2007 9:03 pm
DWV

Last post by DYI
Replies: 10
by elitesniper » Wed Nov 21, 2007 7:03 pm

First post

hey guys i just got a pip thats says nsf-pw but next to it it says dwv then its says 330psi 70F. this pipe should be safe right?

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Most PVC fittings that are ONLY rated DWV, and not PW, are not pressure rated for any more than 10 psi or so. These fittings often have a shallower...

10 Replies

2658 Views

Last post by DYI
Wed Nov 21, 2007 8:56 pm
Modding a Sprinkler Valve for "Electric" Use

Last post by Hubb
Replies: 6
by Hubb » Fri Nov 16, 2007 10:19 pm

First post

I've used sprinkler valves before but all of them have been modded. I have recently wanted to use electronics in a valve but just couldn't bare...

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Well, I wasn't exactly thinking of a micro solenoid but it may have its perks.

What I was looking for was an electric valve that is low profile,...

6 Replies

1916 Views

Last post by Hubb
Wed Nov 21, 2007 7:56 pm
Homemade pressure regulator

Last post by psycix
Replies: 17
by Gunner » Sun Nov 18, 2007 2:50 pm
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I would like to have some comments, I just invent it from my head.
I going to test it someday :D .

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Well, actually the other valve MIGHT be more accurate if its constructed very well and applied on a small chamber.
17 Replies

4336 Views

Last post by psycix
Wed Nov 21, 2007 5:07 pm
Barrel/Chamber length?

Last post by DYI
Replies: 16
by TheTrooper » Tue Nov 20, 2007 3:33 pm
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If I have a pressure chamber 15 Inches long with 1.5 diameter PVC pipe how long will a 3/4 barrel have to be to have maximum performance? Couldn't...

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The inner diameter of 1.5 pipe is 1.61 , not 1.5, and he said the bore would be 0.75 , not 1.5 .

By these specs, he could use a barrel more than 12'...
16 Replies

3568 Views

Last post by DYI
Wed Nov 21, 2007 4:56 pm
PPK

Last post by thespeedycicada
Replies: 46
by PCGUY » Mon Jan 31, 2005 11:41 pm
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PPK

Provided By FoxxLord -

I made the PPK (Put-Put Kannon) right after I made the Punisher, thus they share very similar designs. PPK was...

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Ohh i likey this gun it would be just perfect with some CO2 though.Has anyone put a mag on a coaxial? looking at mine i dont see how you would do it...
46 Replies

40066 Views

Last post by thespeedycicada
Wed Nov 21, 2007 4:54 pm
Very cheap 8mm BB's

Last post by rna_duelers
Replies: 23
by Mitchza89 » Wed Nov 21, 2007 1:57 am
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I just got a very good buy. a 12m chain of 8mm bb's :D. They are called Garland beads. You find em at any discount shop in the christmas decorations...

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Just keep twisting it in one direction,you'll get a nice cracking sound and then it'll pop off althought the ones I was doing it to were quite old....
23 Replies

5410 Views

Last post by rna_duelers
Wed Nov 21, 2007 4:43 pm
teflon substitute?

Last post by mopherman
Replies: 16
by singularity » Tue Nov 20, 2007 6:13 pm
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well it appears as though i have ran out of Teflon (i really don't know how this happened i manged to go through 2 rolls in a week) and i was...

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Use gorrilla glue, worked for me.
But then he wouldn't be able to dissasemble his gun. Silicone might work though
16 Replies

19479 Views

Last post by mopherman
Wed Nov 21, 2007 2:59 pm
Tiny QEV

Last post by benstern
Replies: 8
by demilus » Tue Nov 20, 2007 6:43 pm

First post

I was fiddling around with my paintball gun, and I was about to install a QEV in it (makes the bolt cycle faster, among other things), and I thought...

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PM me if you want one. And they pretty much are only useful on bb sized ammo.

8 Replies

4498 Views

Last post by benstern
Wed Nov 21, 2007 2:44 pm
My First QEV rifle

Last post by nz_cannons
Replies: 17
by nz_cannons » Fri Oct 12, 2007 11:40 pm
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Its been a while since I last posted a cannon so here we go.
I managed to get hold of a Quick Exhaust Valve finally, seems their not very common in...

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Hmm, only 145, I take it up to 180 every time. Yeah I had to improvise with this one, anyway, its gone now in favour of a better rendition which is...
17 Replies

8476 Views

Last post by nz_cannons
Wed Nov 21, 2007 1:16 pm
horizontal magazine

Last post by sinper2006
Replies: 11
by sinper2006 » Wed Nov 21, 2007 4:48 am

First post

i just had an idea to make a horizontal magazine just wonderin if anyone got any ideas for it

well dats proble wat it will look like but i'm...

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the spring is only going to be strong enough to push the projectiles and inside the tee will be pipe with the same diameter as the barrel when i get...

11 Replies

3274 Views

Last post by sinper2006
Wed Nov 21, 2007 6:00 am
My first sniper rifle

Last post by rhys_pesantsrevolt
Replies: 12
by elitesniper » Sat Oct 13, 2007 11:32 pm

First post

this is the first sniper rifle i made do you guys think its nicly crafted or should i make some changed to make it stronger or is it good alredy?

i...

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dont use batteries because they tend to spin in the air from my experience try making some darts or at least add a cone to the end of the battery

12 Replies

5978 Views

Last post by rhys_pesantsrevolt
Wed Nov 21, 2007 2:10 am
1.5" to 3/4" Sprinkler valve question

Last post by TheTrooper
Replies: 4
by TheTrooper » Tue Nov 20, 2007 11:12 pm

First post

Hey, today i was at ACE hardware and i couldn't find any piece that would reduce down a 1.5 to 3/4 and screw into a 3/4 sprinkler valve. If you know...

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Actually i never wasted a lot lol, the total i have spent on all my guns is about $25.00. My scrap dart gun
and first pneumatic which i never...

4 Replies

1141 Views

Last post by TheTrooper
Wed Nov 21, 2007 12:09 am
Ghetto Pneumatic - with damage shots

Last post by The Kid
Replies: 17
by The Kid » Tue Nov 20, 2007 7:19 pm
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Chamber - 600mL saxbys soft drink bottle
Barrel - 1 foot of 1cm copper (i think its 1cm)
Valve - slightly leaky metal ball valve (don't know the...

Last post

15mm pn18 in aus never seen cpvc in aus and pipe and it mesured in mm instead of inches
17 Replies

5993 Views

Last post by The Kid
Tue Nov 20, 2007 10:17 pm
Why do this?

Last post by nivekatoz
Replies: 25
by elitesniper » Mon Nov 19, 2007 9:57 pm
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Um sorry for this newby question but why do u have to tap in a gauge where the pvc is twice as thick?

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Why don't you use steel or tempered aluminum...That way the threads will be worry proof if you tap them.......
25 Replies

4925 Views

Last post by nivekatoz
Tue Nov 20, 2007 7:39 pm
modding a sprinkler valve

Last post by nivekatoz
Replies: 5
by Zuno » Tue Nov 20, 2007 12:37 am

First post

I am new to the whole wonderful world of spud guns and was wondering how exactly do you mod a sprinkler valve to use it on a launcher? I have looked...

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You could get a ASCO or DAYTON or any other solenoid valve that is brass and is stronger than a plastic sprinkler valve....There all kinda the same...

5 Replies

3188 Views

Last post by nivekatoz
Tue Nov 20, 2007 7:35 pm
Compressed Air/Nitrogen tanks instead of co2?

Last post by EGOed
Replies: 7
by gwoloshyn » Sun Nov 18, 2007 9:36 pm

First post

When I was younger, as I advanced into paintball I found all the nicer guns and better players ran compressed air tanks. Why not use one of these on...

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Yes , HPA systems are very expensive to say the least....Actually you almost have to have HPA at a legitimate paintball field nowadays because guys...

7 Replies

1877 Views

Last post by EGOed
Tue Nov 20, 2007 5:05 pm
My 1st Rifle

Last post by JJ pyro
Replies: 68
by joe blogs » Thu Sep 07, 2006 1:36 am
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This is my first homemade rifle please leave comments on how to improve it or just comments on what you think.

The specs are

laser mounted on tasco...

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Wow! is that your first rifle?? :shock: you really have talent! Is the entire rifle handmade??What are your projectiles?
68 Replies

36461 Views

Last post by JJ pyro
Tue Nov 20, 2007 11:26 am
gauge Help please

Last post by BigGrib
Replies: 9
by elitesniper » Sun Nov 18, 2007 8:23 pm

First post

hey guys this is my first time putting a gauge on my penumatic can u help me, i got this gauge from an old air compressor and it has a small threaded...

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not really... it decreases chamber volume by the volume of the threaded fitting... so depending on your chamber volume it decreases your performance...

9 Replies

2661 Views

Last post by BigGrib
Tue Nov 20, 2007 11:13 am
Pneumatic Gun?

Last post by jimmy101
Replies: 10
by BrodMan » Mon Nov 19, 2007 6:38 pm

First post

i was a member before, but i lost my information, so i thought id rejoin, and ask some more questions. i havent been to a hardware store for a while...

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The choice of metal versus PVC really should be made based on your source of compressed air.

If you'll be using a typical shop compressor (~120 PSIG...

10 Replies

2965 Views

Last post by jimmy101
Tue Nov 20, 2007 10:53 am
Tube Pressure

Last post by ShowNoMercy
Replies: 7
by elitesniper » Mon Nov 19, 2007 9:09 pm

First post

Uhm I have recently changed my tube for the pilot for my sprinkler valve because some people said it didnt hold much pressure it was thats clear...

Last post

Well not really but ok.

7 Replies

1563 Views

Last post by ShowNoMercy
Mon Nov 19, 2007 11:12 pm
diaphram valve shot gun.

Last post by schmanman
Replies: 26
by th3p0p0 » Tue Oct 30, 2007 7:59 pm
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well i haven't posted a gun in a long time so i thought id post this one.

iv wanted a shot gun for a long time but i hated how you had to sabot...

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that's pretty cool.

diaphragm valves are nifty!
26 Replies

6682 Views

Last post by schmanman
Mon Nov 19, 2007 6:29 pm

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