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

897757 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

436525 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

370950 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

614369 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

327035 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

77861 Views

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

Topics

help me please with scope issue

Last post by OuchProgramme
Replies: 7
by Dumb-kid » Sat May 17, 2008 3:32 am

First post

ok From the barrel how high dose the scope have to be?

I tried gluing the scope rail on the barrel then clip and screws on the rail
but its still...

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THe shortest possible. The higher the scope, the bigger the angle between em is needed for a certain distance.

Thats what zero-ing in for is

Lower...

7 Replies

2177 Views

Last post by OuchProgramme
Sat May 17, 2008 8:07 pm
Black Devil

Last post by STHORNE
Replies: 5
by blind909 » Fri May 16, 2008 8:26 pm

First post

Specs
Valve-3/4 inch water hose ball valve(opens real easy and quick)
Barrel - 1/2 inch pvc
stock-3/4 inch pvc
chamber-3/4 inch galv. steel
grip- old...

Last post

it can fit in your back pocket, and with my spinning marbles with a bag tail, could probably kill you .

Rule #2:
Discussion of shooting anything...

5 Replies

3328 Views

Last post by STHORNE
Sat May 17, 2008 4:58 pm
Buying a HP Pump

Last post by MrCrowley
Replies: 38
by MrCrowley » Tue May 13, 2008 7:00 pm
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Well I think it's time I bought a High pressure pump, I would make one, but it'd cost more and be less safe then if I bought one.

I have 2 choices:...

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Yeah I know that they're X% off but all the chambers I was using had the same volume more or less. So I couldn't be arsed to change the fittings on...
38 Replies

7519 Views

Last post by MrCrowley
Sat May 17, 2008 3:54 pm
valveless gun, update with new videos

Last post by trollhameran
Replies: 44
by trollhameran » Tue May 13, 2008 2:27 pm
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Ive seen topics made for valveless designs where the ammo is used to seal the barrel so that air cant escape untill a trigger is released letting the...

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yh just do that
44 Replies

10936 Views

Last post by trollhameran
Sat May 17, 2008 2:57 pm
Summer Project... What do I make?

Last post by ammosmoke
Replies: 23
by ammosmoke » Tue May 13, 2008 11:00 pm
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I've got a list of cannons I want to make, but I need to start somewhere first. I don't know what to make. My list consists of... 1. A silenced...

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Sweet, thanks. I've got a vortex block from noname already, but I'd consider making a vortex cap also at these prices. However, I have the problem of...
23 Replies

4755 Views

Last post by ammosmoke
Sat May 17, 2008 11:06 am
using pvc with high pressure CO2?

Last post by bigbob12345
Replies: 9
by JDP12 » Thu May 15, 2008 9:11 pm

First post

Hey all, for my lever action and pump action shotguns, (yes you heard right)

I'm hoping to use PVC as the barrel and cartridges, but my only...

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I use pvc in the new barrel for my hybrid, its 1in in size and I have taken it uo to 7x(~700psi) without failure so i would say that you are fine.

9 Replies

1560 Views

Last post by bigbob12345
Fri May 16, 2008 9:57 pm
refilling 5lb co2 tanks?

Last post by JDP12
Replies: 11
by JDP12 » Fri May 16, 2008 11:16 am

First post

Hey all, does anyone know about refilling 5 lb CO2 tanks? Will paintball places refill them? I'm asking because i'll be using one in my airsoft...

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oh you're way up there, i live in germantown, north of milwaukee.

yea i dunno, i saw a subway once with a couple of them being used to hold a door...

11 Replies

3764 Views

Last post by JDP12
Fri May 16, 2008 9:48 pm
CO2 pressure regulator

Last post by JDP12
Replies: 5
by JDP12 » Thu May 15, 2008 10:25 pm

First post

Hello again to all,

I'm currently looking for a co2 regulator to preferably fit on a 5lb co2 tank. i know that there are a lot out there for 20...

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k thanks guys..

5 Replies

2335 Views

Last post by JDP12
Fri May 16, 2008 11:12 am
BB/Marble Rifle Design

Last post by FordGtMan
Replies: 35
by STHORNE » Sun May 11, 2008 5:19 pm
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Hello fellow spudders!
I am really eager to make myself a marble rifle. I have made plans and have all the supplies to make it.

My question is:...

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The ones that are rated to 500 psi are like less than 10 bucks so i think would use them instead though.
35 Replies

8018 Views

Last post by FordGtMan
Thu May 15, 2008 8:48 pm
2 questions

Last post by bikingpro911
Replies: 8
by The_Kangsta » Wed May 07, 2008 6:48 pm

First post

Sorry for these noob questions, but i need them answered quickly.

1) would a 1/2 inch barrel choke flow from a 1 inch sprinkler valve?

2) would a...

Last post

sounds reasonable to me...i like number 2 and there wouldnt have to be any reconstruction.

My second Pneumatic is almost the same as yours. 1...

8 Replies

2644 Views

Last post by bikingpro911
Thu May 15, 2008 7:54 pm
LRP (V 1.0)

Last post by JDP12
Replies: 20
by Carlman » Mon Apr 07, 2008 2:21 am
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Hi all,

I havnt posted a 'cannon' for quite some time as i just made them to have fun with so i could do without the flaming in the looks department...

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Nice gun, i like it, and nice video watto.

I also think the camo ruins the look a bit, but hey its your gun..
20 Replies

5549 Views

Last post by JDP12
Thu May 15, 2008 11:53 am
PB Shotgun

Last post by keep_it_real
Replies: 26
by keep_it_real » Mon Mar 26, 2007 6:36 pm
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I'm not sure if anyone has tried this yet but we did (a friend and I). We put 9 3/4 cpvc barrels inside 2' of 3 pvc. The barrels are glued with Great...

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daxspudder: the paintballs actually stay in a very consistent group. If you shoot up, you can see them flying through the air together and it looks...
26 Replies

14744 Views

Last post by keep_it_real
Wed May 14, 2008 7:58 pm
Iron Forged Chamber + CPVC Barrel

Last post by DYI
Replies: 20
by neeewwww » Tue May 13, 2008 12:23 pm
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Hi... I will build a SpudGun, but I´m very afraid about the PVP/CPVC chamber, because, i guess i wouldnt find the Sch40 here where I live... Even...

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I don't know if iron is cheaper than mild steel where you live, but mild steel is certainly more available. Do you have the equipment to cast steel?...
20 Replies

4024 Views

Last post by DYI
Wed May 14, 2008 4:00 pm
Volume of a Fitting

Last post by mark.f
Replies: 4
by socoj2 » Mon May 12, 2008 9:31 pm

First post

So. for 1.5 pipe determining volume of a Fitting.

This is for a Stock that is mostly Fittings and not much pipe.

For a 90 Degree elbow it takes...

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Or...

Approximate the bends in the elbows with polynomials or other elementary functions, create a 2-d cross section on the xy coordinate plane,...

4 Replies

1319 Views

Last post by mark.f
Tue May 13, 2008 1:06 pm
My first spud gun (and problems)

Last post by MaxuS the 2nd
Replies: 6
by Wave Rider » Mon May 12, 2008 5:55 pm

First post

I just discovered this place a couple of days ago, and I am amazed at the amount of new technology that has become available though this forum,...

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Copper is pressure rated...Which you seem to have.

6 Replies

1481 Views

Last post by MaxuS the 2nd
Tue May 13, 2008 10:22 am
Aluminium Tube Pressure Rated?

Last post by Mitchza89
Replies: 52
by Mitchza89 » Sun Apr 27, 2008 9:11 pm
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G'day guys,

I saw some nice aluminium tube down at my hardware. 8 bucks for a meter of 25mm (WAY CHEAPER THEN COPPER!)

Is this stuff safe to use...

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Very nice mate :D. I think everyones first spudgun is usually shocking haha. Mine was a ball valve and a bottle...

Best of luck with the course!
52 Replies

11960 Views

Last post by Mitchza89
Tue May 13, 2008 6:15 am
C:B help

Last post by MrCrowley
Replies: 12
by iisthemuffin » Sun May 11, 2008 2:50 pm

First post

im new to this forum and to building potato guns as well...i first built a very small one with a handheld bike pump, a 20 oz pop bottle, and a...

Last post

I agree with Hydra, you have the knowledge and confidence to go Piston, just do it :)

12 Replies

2841 Views

Last post by MrCrowley
Tue May 13, 2008 2:15 am
spudtech cannons

Last post by starman
Replies: 34
by unisonmind » Sun May 11, 2008 2:34 pm
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is there anyone on here that got a full cannon ( not just the valve ) from joel??

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That looks like it could have been a stress fracture, like from it being dropped at the wrong angle. That particular location would have to bear a...
34 Replies

8873 Views

Last post by starman
Mon May 12, 2008 6:47 pm
C:B ratio question

Last post by jimmy101
Replies: 4
by lockmanslammin » Sat May 10, 2008 10:03 pm

First post

OK, so I did a search on this and found alot of opinions and numbers.
Here is what I'm curious about: When people ask the forum what the correct C:B...

Last post

At first this started out as me trying to make the gun more accurate though so I would also like a setting that will dramatically reduce muzzle...

4 Replies

1559 Views

Last post by jimmy101
Sun May 11, 2008 7:48 pm
Air Cane Coaxial

Last post by kablooie
Replies: 5
by kablooie » Sun May 11, 2008 1:05 am

First post

This is my first coaxial, it's designed to look like a cane, I could obviously do a lot more to have it really look like a cane, but that gets into...

Last post

Yeah, I like that idea, it would incorporate the best of both worlds. Thanks! I'll change it whenever I get to the hardware store again. For the...

5 Replies

3024 Views

Last post by kablooie
Sun May 11, 2008 4:29 pm
Piston Problem

Last post by jrrdw
Replies: 34
by no-limit » Tue May 06, 2008 12:55 am
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Well I finally made my first piston valve. When I fill the thing up it works perfect. The problem is when I try and fire it. My piston is virtical as...

Last post

Dremeling out the tee sounds like a very long and diffcult time.

It's harder to not go to deep then it is removing the plastic inside the tee.
34 Replies

7477 Views

Last post by jrrdw
Sat May 10, 2008 6:10 pm
State of the full auto spudgun?

Last post by judgment_arms
Replies: 20
by dongfang » Thu May 08, 2008 6:08 am
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Hi,

Occasionally there is mention of a full auto spud gun. Mostly, just as a dream of the future, sometimes also as an unfinished or failed...

Last post

I made the Wookie gun, it kind of worked…

Its called a bowcaster as a matter-of-fact.
KInd of worked? Pray tell
No, it’s called the Wookie gun:...
20 Replies

4998 Views

Last post by judgment_arms
Sat May 10, 2008 4:09 pm
CO2 and various parts??

Last post by psycix
Replies: 10
by JDP12 » Fri May 09, 2008 12:49 pm

First post

Hey all, I'm building a t-shirt launcher for my school, and it'll be running off of co2. question is how well will these parts handle co2??

1...

Last post

QEVs have superior flow above sprinklers....
But since QEVs are usually smaller (1/4 up to 1 , while sprinklers go 1/4 up to 2 ) ofcourse they have...

10 Replies

2443 Views

Last post by psycix
Sat May 10, 2008 6:22 am
Insomniac 1

Last post by rna_duelers
Replies: 39
by crashdaddio » Thu May 08, 2008 3:16 pm
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This is the newest of a number of cannons over the years. It is a barrel sealing piston valve in a 1 tee. 1/2 barrel,aluminum FE for chamber, much...

Last post

Beautiful!Thats amazingly good looking,love the polished look and the stock really makes it.Nice cannon! :D
39 Replies

8541 Views

Last post by rna_duelers
Sat May 10, 2008 1:27 am
Airflow questions

Last post by Pilgrimman
Replies: 9
by M.J.P. » Fri May 09, 2008 7:12 am

First post

Okay i've slightly redesigned the gun, if you can see any problems with airflow and other technical stuff like that could you please comment. Thanks...

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I use about 2' of 2 pipe for barrels like that. Your chamber is overkill. As for flow restrictions, the valve is the biggest choke point, but you...

9 Replies

2297 Views

Last post by Pilgrimman
Fri May 09, 2008 6:04 pm

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