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

1206104 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

606264 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

858857 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

1022147 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

393193 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

100330 Views

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

Topics

3/4" Copper Full/Semi-auto

Last post by psycix
Replies: 9
by skyjive » Mon Dec 22, 2008 10:56 am

First post

This is my second attempt at an automatic design, the first was cylinder-actuated (its posted here somewhere) and was basically a failure due to a...

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Nicely done on the blow forward bolt! :D
Cruelly done on the chamber shape! :shock:

If I understand it well, you just keep the air feed on while...

9 Replies

3369 Views

Last post by psycix
Tue Dec 23, 2008 6:16 pm
psi limit

Last post by Hubb
Replies: 7
by tape fist » Sun Dec 21, 2008 4:42 am

First post

I have recently made a compact air cannon and would like to know what the max psi it could hold i have put 150 in it over 500 times and it hasn't had...

Last post

Read this!

7 Replies

3332 Views

Last post by Hubb
Tue Dec 23, 2008 1:45 pm
bolt-action multi-shot design

Last post by SP00K
Replies: 15
by IA_Armourer » Sat Dec 20, 2008 8:08 pm
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my idea is to make a bolt-action gun where I can get between 3-5 shots off without refilling I will be using a modified solenoid valve. it will be...

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Ah, yeah, four tanks is a bit of a hassle. I made a burst disk cartridge gun with my idea in reverse. It has three barrels, each leading to a bv,...
15 Replies

8371 Views

Last post by SP00K
Mon Dec 22, 2008 3:32 pm
range estimates for TB gun

Last post by roboman
Replies: 13
by FishBoy » Tue Dec 16, 2008 8:44 pm

First post

This is a design for a commisioned tennis ball gun I will be building in a few weeks, pretty simple & nothing really out of the ordinary, but anyone...

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1. You might get a higher flow rate, but I'm not sure. A manifold would probably work just as well.

2. I'm not sure how much friction it would...

13 Replies

3844 Views

Last post by roboman
Sun Dec 21, 2008 11:40 am
QEV's... How do they work?

Last post by MrCrowley
Replies: 3
by c9d » Sun Dec 21, 2008 1:00 am

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I would like to know how these valves work.

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I would like to know how these valves work.
I like to know how things work too. That's why I research instead of asking people who have better...

3 Replies

1374 Views

Last post by MrCrowley
Sun Dec 21, 2008 1:21 am
holes in copper pipe

Last post by john bunsenburner
Replies: 9
by raptorforce » Fri Dec 19, 2008 1:41 am

First post

can you make holes in copper piping then put in some tubing and seal it with epxoy. Would that hold watever psi copper pipes are taken up to?

Where...

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It takes me 2-5mins, tools required are only a hand drill, and electric makes work a little faster. You need either super glue and a soldering torch...

9 Replies

2765 Views

Last post by john bunsenburner
Sun Dec 21, 2008 12:41 am
GGDT runtime error 76

Last post by D_Hall
Replies: 20
by Biopyro » Fri Dec 19, 2008 11:40 am
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Whenever I try to configure the options on a previously saved file (doesn't happen on the default gun that comes up when you start the program), I...

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I use gm for grams because I found that some folks would get confused by just a g .... They were gun folks and to them, g meant grains not grams....
20 Replies

4018 Views

Last post by D_Hall
Sat Dec 20, 2008 10:13 pm
How do you guys build decent bolt action/breech loaders?!

Last post by cheeseboy
Replies: 11
by kiwi of nitro » Wed Dec 17, 2008 3:11 am

First post

I can't find 2 sizes of PVC that fit into each other well enough to make an effective bolt action loader...

Like the one on BCARMS...

Do you...

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I actually made one pocket, but then I couldn't get it to work I got the red square of death and it was 12:00 in the morning, hopefully someone else...

11 Replies

4426 Views

Last post by cheeseboy
Sat Dec 20, 2008 6:26 pm
QEVs in NY and DC

Last post by john bunsenburner
Replies: 23
by john bunsenburner » Fri Dec 19, 2008 7:45 am
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I am leaving for Washington D. C. on sunday and then will go to New york(city) the next sunday. I will then stay for another week before going back...

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Ok thank you for all your help
23 Replies

6102 Views

Last post by john bunsenburner
Sat Dec 20, 2008 4:38 pm
penetration

Last post by rp181
Replies: 47
by dilweed » Thu Dec 18, 2008 9:16 am
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okay this isn't a very serious topic, but i was bored. Today i got this crappy little hand held bike pump and attached it to my airgun. Since i have...

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This is probably abit late, but i tried shooting coins with my crappy ball valve pneu.
2L chamber, 3/4in ball valve, 1/2in barrel, at ~40psi. Ball...
47 Replies

10715 Views

Last post by rp181
Sat Dec 20, 2008 1:53 pm
A High pressure solenoid valve

Last post by ALIHISGREAT
Replies: 18
by cheeseboy » Fri Dec 19, 2008 6:16 am
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I have found on ebay a high pressure solenoid valve rated for 3000PSI it has been taken from a 1950's warbird and am wondering how the best way to...

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nah, the guy was cool and promised me if another valve comes on he will contact me first privately, so heres hoping for another, meanwhile I am using...
18 Replies

4795 Views

Last post by ALIHISGREAT
Sat Dec 20, 2008 10:17 am
GGDT chambersize projections

Last post by cheeseboy
Replies: 3
by cheeseboy » Sat Dec 20, 2008 6:32 am

First post

if you have read my topic on the high pressure solenoid valve, I am making a new pneumatic, I already have my barrel (0.75m of 10mm steel) and...

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awesome, this means I can make a Very aesthetically pleasing gun while still retaining power :D yes this is my first high pressure gun.
and its...

3 Replies

1090 Views

Last post by cheeseboy
Sat Dec 20, 2008 8:17 am
hop-up for small launcher

Last post by FishBoy
Replies: 5
by FishBoy » Fri Dec 19, 2008 10:58 am

First post

would it make sense to put an adjustable hop-up (machine screw) in a small tennis ball launcher like this?

Last post

Ok, thanks. I actually just finished the first of these 2 guns, they are for my little cousins, and they are way more fun than I expected. I have...

5 Replies

2490 Views

Last post by FishBoy
Fri Dec 19, 2008 10:16 pm
small but deadly

Last post by Sticky_Tape
Replies: 18
by ckman » Tue Dec 16, 2008 7:55 pm
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ok here is my new bb gun

chamber: 3/4 inch sch 80 pvc
barrel:2 feet of 1/4 brake line also 3 feet of 5/16 brake line
valve:1/4 ball valve
fill...

Last post

Nice gun maybe later you can make a piston housed in a 1/2'' tee? qev's are nice but you don't get the same building exsperince. Maybe you could sent...
18 Replies

7679 Views

Last post by Sticky_Tape
Thu Dec 18, 2008 9:47 pm
Programs to draw cannon designs

Last post by microman171
Replies: 23
by mach10 » Wed Dec 17, 2008 2:17 pm
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What do you use to draw pictures of cannons on posts?

Edit by MrC: Please use a more descriptive title when making a topic. Read the Posting...

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I perfer to upload to photobucket and then use this tag without the spaces in the tags:

Without the quotes it looks like this:

Hope this helps...
23 Replies

8028 Views

Last post by microman171
Thu Dec 18, 2008 4:01 pm
how many 9 volt batteries do I need ?

Last post by Hubb
Replies: 14
by POLAND_SPUD » Tue Dec 16, 2008 6:15 am

First post

I tried to do some research myslef but It seems I know nothing about electronics...

I have a 24V 7W solenoid... how many 9V batteries would I need...

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Anyone tried a single 9V?

It opens the solenoid only partially, and more slowly.. It works on triggering a sprinkler valve, but not all that great....

14 Replies

4656 Views

Last post by Hubb
Thu Dec 18, 2008 1:46 pm
Fire extinguisher

Last post by dungdue0
Replies: 21
by airman » Fri Dec 12, 2008 2:11 pm
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Is it possible to reload an empty dry chemical fire extinguisher with air, to use as a chamber for an airgun? If so, how?

Thank you

Last post

I used a 8 dollar dry chem fe. all i did was drill and tap.

and damage lulz
21 Replies

6232 Views

Last post by dungdue0
Thu Dec 18, 2008 1:25 pm
propane tank, as air reservoir

Last post by maggotman
Replies: 5
by jor2daje » Tue Dec 16, 2008 11:33 pm

First post

Sorry if this has already been discussed, but how would a used propane torch cylinder work as an air tank? I assume that they are under considerable...

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im using a 4.5kg propane tank as my chamber i have had it up to 250 psi.
im sure as it containes a flamabull gas it would have a good safty factor.

5 Replies

3016 Views

Last post by maggotman
Thu Dec 18, 2008 3:21 am
Different Pneumatic Valves!

Last post by zac_sraw
Replies: 16
by zac_sraw » Sat Dec 13, 2008 2:29 am
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Post any valves for pneumatic guns here. and what do you think the simplest and easiest valve is to make and use!

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ARe you asking for advice on a valve? Or just starting a thread so people can come and look some up (liek a sticky).

Easiest by far is the ball...
16 Replies

6061 Views

Last post by zac_sraw
Thu Dec 18, 2008 1:21 am
Marble gun design

Last post by FordGtMan
Replies: 15
by sputnick » Tue Dec 16, 2008 7:08 pm
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This is the kind of work I do, I design pneumatic launchers, and me not having any money, I give the design to whoever wants it.

This is my most...

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No, more advanced fabrication of the same techniques will not result in any kind of advancement. It'll just be tidier, heavier and more expensive....
15 Replies

9340 Views

Last post by FordGtMan
Wed Dec 17, 2008 9:16 pm
3/4inch anti tank (unfinished)

Last post by Mateo
Replies: 10
by Imortal87 » Wed Dec 10, 2008 10:18 am

First post

This is the design I have been working on for a few days now that is based off of the barret .50 cal. It is a bolt action, single shot for the...

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i dont think the direct co2 cartridge will make much power. why not try to make a burst disk?

10 Replies

3880 Views

Last post by Mateo
Wed Dec 17, 2008 5:25 pm
B.A.S.T.A.R.D.

Last post by john bunsenburner
Replies: 46
by Daltonultra » Sat Dec 06, 2008 2:57 am
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Button-Activated Slug Thrower/Advanced Re-Design

I recycled a few things from my SpudRifle BV gun. The Barrel, BV, and a few fittings and brass...

Last post

my 4th grade teacher was right, you never stop learning, thank you
46 Replies

13898 Views

Last post by john bunsenburner
Wed Dec 17, 2008 3:07 pm
Paintball / airsoft grenade launcher

Last post by SP00K
Replies: 22
by SP00K » Thu Dec 11, 2008 9:42 pm
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Alright, the design of this gun has been changed several times.
Originally, the idea began it's life as a movie prop for a hinge-action grenade...

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It allows for a decent amount of air pressure to build up. AFter the burst disk breaks, the bb's are out in the open, so spraying more co2 would not...
22 Replies

10112 Views

Last post by SP00K
Tue Dec 16, 2008 6:34 pm
my cannon

Last post by maggotman
Replies: 17
by maggotman » Tue Dec 16, 2008 7:37 am
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the steel is pressure rated as are the fittings
to cut the hole in the tank i used the gass
removed the valve then filled it with water pluged the...

Last post

its not finished yet thanks anyway

i need to block of hole in the compressor before a put oil in it as it sprays every wear its not many rpm and...
17 Replies

4627 Views

Last post by maggotman
Tue Dec 16, 2008 4:17 pm
check valve

Last post by MrCrowley
Replies: 4
by jitup » Tue Dec 16, 2008 10:46 am

First post

Hello,
I was wondering if a check valve is needed after the valve stem of my piston cannon to keep it from triggering when I remove the filler....

Last post

Ok, that is good!
one other question. How are diaphram valves size determined? is it by the actual size of the diaphram, or by the size of the outlet...

4 Replies

1510 Views

Last post by MrCrowley
Tue Dec 16, 2008 3:40 pm

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