Combustion Cannons

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SpudFiles Potato Gun Commercial

Last post by quinn whitsitt
Replies: 15
by PCGUY » Tue Oct 29, 2013 10:54 pm
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First post

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

957711 Views

Last post by quinn whitsitt
Fri Feb 09, 2024 2:38 pm
Sparker Reference Guide

Last post by quinn whitsitt
Replies: 45
by rcman50166 » Tue Feb 05, 2008 4:19 pm
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First post

OK. Everyone always seems to know more than me in almost every topic on this site. But this is my domain! High voltage electricity is what i know...

Last post

great job how can i help the fourms
45 Replies

315286 Views

Last post by quinn whitsitt
Fri Mar 01, 2024 10:52 am

Topics

estimated range

Last post by Canuck
Replies: 3
by FishBoy » Sat Jun 07, 2008 3:07 pm

First post

I just completed a new gun, it's in the shape of a J (the chamber under the barrel). The chamber is 4 x36 & the barrel is 2 x7'. it is a spray & pray...

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I agree with starman that 300 yards is unlikely - the mass of the potato vs. it's size is just not high enough. They tumble and slow down a lot after...

3 Replies

1706 Views

Last post by Canuck
Tue Jun 10, 2008 2:51 pm
problems with axe body spray

Last post by sprayandplay08
Replies: 14
by mrmoose » Thu May 29, 2008 11:35 am

First post

I find when using axe that the screws inside constantly get gummed up and it wont ignite after 1 shot, anyone else have this problem?? Is it beacuse...

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Mmmmmm prosonaly i just use petrol, just spray it in twice and it works like a charm for me. and you get some nice flame out the front aswell....

14 Replies

5496 Views

Last post by sprayandplay08
Tue Jun 10, 2008 1:58 pm
Best design

Last post by sprayandplay08
Replies: 7
by Sprayandpreynoob » Sun Jun 08, 2008 9:08 pm

First post

Hello everyone i am new to this forum and was wondering about what is the best setup for a spray and prey gun.

My father has had one for years and...

Last post

hey dude go whith an idea and try it and then tear it down and make it better

7 Replies

2300 Views

Last post by sprayandplay08
Tue Jun 10, 2008 1:50 pm
1st combustion cannon

Last post by Philbob1
Replies: 8
by Philbob1 » Mon Jun 09, 2008 6:13 pm

First post

I have nothing to do at the moment, so I felt like posting videos (not havin' pics yet XD) of the 1st spudgun my friends and I built a few months...

Last post

Sadly I do not have the gun with me, the only thing i can give as would be other vids.

(uploading it atm, will take a bit of time)

But I can tell...

8 Replies

2887 Views

Last post by Philbob1
Mon Jun 09, 2008 7:15 pm
Combustoin Chamber Design Help

Last post by JTF3
Replies: 9
by JTF3 » Sun Jun 08, 2008 2:23 pm

First post

Hello,

I am new to this website, and the the advanced Spudgunnin' world. I understand the basic working of combustion guns, and was wondering...

Last post

So heres what Im thinking

I know its only the camber and there is the other parts

9 Replies

2272 Views

Last post by JTF3
Sun Jun 08, 2008 6:36 pm
Video: Softball vs 20" LCD Monitor

Last post by starman
Replies: 6
by xpitxbullx » Sat Jun 07, 2008 9:25 am

First post

I took a burned out 20 monitor to the park and shot it with the softball cannon. I was surprised that it took it so well. The rag I packed the...

Last post

I love 4 PVC! It wins! I love how you stand when you shoot it, very professional.

Well he is trying to aim it at a small, low target..... :roll:

6 Replies

2051 Views

Last post by starman
Sat Jun 07, 2008 8:53 pm
too humid?

Last post by starman
Replies: 7
by uncomplientspud » Fri Jun 06, 2008 7:12 pm

First post

well i have spent the better part of an hour and a half hunting down my problem and to be honest, there isn't one. Everything is fine. Good spark,...

Last post

Just start the fan and let it run. It will mix the fuel while firing and evacuate the chamber after the shot. 5 - 10 seconds will evacuate the...

7 Replies

2496 Views

Last post by starman
Sat Jun 07, 2008 8:50 pm
chamber size, the point of diminishing return

Last post by magnum9987
Replies: 15
by uncomplientspud » Wed Jun 04, 2008 3:17 pm
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Hey there guys!

Alright i have a question for you tater gurus. At waht point does the chamber size get too big, and yeild less than impressive...

Last post

Actually, it might depend on where the ignition is. If the gases burn at different rates then the gases have smaller effect on the projectile
15 Replies

5642 Views

Last post by magnum9987
Fri Jun 06, 2008 5:35 pm
rapid sparks?

Last post by Canuck
Replies: 14
by taytayswims » Sun Jun 01, 2008 10:03 pm

First post

the type of grill ignitor im looking to get are the kind that spark 3 or 4 times a second. there is a grill down the street from my house with a free...

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I cant get my piezo to work properly in my new cannon, so im going to get an electronic ignition type. Yes you only need one spark to ignite a...

14 Replies

3902 Views

Last post by Canuck
Thu Jun 05, 2008 2:44 pm
Softball + Propane = AWESOME!

Last post by xpitxbullx
Replies: 8
by xpitxbullx » Wed Jun 04, 2008 1:32 pm

First post

My multi-barreled gun has a propane setup now. I can tell the difference between using Gumout Carb Cleaner and using the propane. Very consistent and...

Last post

What kind of softball are you using? IIRC, they come in a couple different masses and hardnesses. Perhaps switch to a heavier softball to increase...

8 Replies

3717 Views

Last post by xpitxbullx
Thu Jun 05, 2008 2:09 pm
Pics and videos of my Softball Cannon

Last post by xpitxbullx
Replies: 26
by xpitxbullx » Tue May 27, 2008 11:35 am
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First post

Here is a couple of pictures of my compression cannon with interchangeable barrels.

Before you flame me, all parts that weld ABS to PVC was done...

Last post

I'll be testing out barrel lengths for the softball attachment after I get paid this weekend. If the wind dies down, I'll get a video of it and...
26 Replies

7831 Views

Last post by xpitxbullx
Thu Jun 05, 2008 12:11 am
steel adv combustion

Last post by uncomplientspud
Replies: 10
by steel spuds » Tue Jun 03, 2008 3:30 am

First post

this is my steel advanced combustion
dimentions
combustion chamber
22cm long
10cm diameter
made from truck exhaust with end caps welded on it the...

Last post

I like it, looks like it could eat you and then shot you out.

Only thing you might want to change in the future is your propane tank, you might want...

10 Replies

4020 Views

Last post by uncomplientspud
Wed Jun 04, 2008 9:55 pm
Troulbeshooting

Last post by jrrdw
Replies: 8
by JET47 » Tue Jun 03, 2008 2:46 pm

First post

Ok. I finished building my gun, posted it in the showcase section here , and promised all you guys damage pics. only problem is, i cant get it to...

Last post

So does it work now? I mean, does the cannon shoot now?

8 Replies

2316 Views

Last post by jrrdw
Wed Jun 04, 2008 8:28 pm
RPG (not dungeons and dragons you nerd)

Last post by magnum9987
Replies: 38
by magnum9987 » Mon May 12, 2008 1:58 pm
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First post

Combustion more often than not is contained in a chamber that propels a spud. But, rather than the spud being propeled, The chamber itself could be...

Last post

Update of idea
Screw the mortar part. Instead i'll make it into a sort of rpg again. This time, the bottle itself is the chamber. A cork of some sort...
38 Replies

9638 Views

Last post by magnum9987
Wed Jun 04, 2008 2:25 pm
Optimal fuel ratio in a propane + air combustion gun

Last post by jimmy101
Replies: 11
by jimmy101 » Mon Jun 02, 2008 4:28 pm

First post

What's the optimal fuel ratio for a propane + air combustion gun? I think most spudders would say that a stoichiometric mix will give the best...

Last post

No idea how it works in guns, but the slightly rich is better statement is true in rocket motors. That one is easy to understand, however.......

11 Replies

4713 Views

Last post by jimmy101
Wed Jun 04, 2008 1:40 pm
Aerosol anything?!

Last post by Canuck
Replies: 7
by Canuck » Tue Jun 03, 2008 7:02 pm

First post

Hi guys,

I dunno if you guys have seen this thing, but its a plastic aerosol container that you can fill with cooking oils and such (or something...

Last post

In Order from top of the pic to the bottom...
-The red dome part and the grey cylinder,below/ in the middle of, the red dome is the pump. That whole...

7 Replies

3133 Views

Last post by Canuck
Tue Jun 03, 2008 10:44 pm
my first spud gun!

Last post by drisken
Replies: 16
by drisken » Tue May 27, 2008 12:58 pm
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First post

sorry i don't have any pictures of it, it's nothing special trust me! i do need some input, however. it has a 14 4 chamber into a 2 38 barrel. Which...

Last post

thanks again for all the help guys, i have the chamber fan in and will be switching to static guard. i'll give it a try tomorrow and we'll see how it...
16 Replies

5257 Views

Last post by drisken
Tue Jun 03, 2008 10:46 am
Help needed with O2 and C3H8

Last post by Philbob1
Replies: 21
by Philbob1 » Thu May 29, 2008 3:47 pm
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First post

This is my first post, so don't be mean :(

I am fairly new to all this cannon thing, and decided a few weeks/months ago with a few friends to build...

Last post

*cough* *cough* Sorry for my ignorance, but would anyone mind to explain me what in the hell is a Chrony? :D

EDIT: Nevermind, checked out on the...
21 Replies

7374 Views

Last post by Philbob1
Mon Jun 02, 2008 5:11 pm
My potato cannons, my evolution from not so good to awesome.

Last post by FishBoy
Replies: 19
by TheBuG » Sun Sep 23, 2007 12:39 pm
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Hey everyone.
I thought i might spread my work a bit more around on the internet so i registered here :)

My interest with potato cannon started...

Last post

i've seen your videos before, they're amazing, but i never got a good look @ your cannons
19 Replies

14445 Views

Last post by FishBoy
Sun Jun 01, 2008 4:20 pm
Handheld Adv. Comb. Golfball Cannon, underway!

Last post by starman
Replies: 17
by JET47 » Thu May 22, 2008 9:57 pm
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First post

Ok guys, I'm working on my first combustion cannon. Golfballs as ammo, breech-loading ball valve mechanism, not what the term for that is. Made a...

Last post

Ignore this post....
17 Replies

6297 Views

Last post by starman
Sun Jun 01, 2008 1:30 am
Low explosives?

Last post by PCGUY
Replies: 5
by magnum9987 » Sat May 31, 2008 9:02 am

First post

Well, most combustion guns work on the expanding gases resulting from, well a combustion, right? So using a relatively low powered explosive in low...

Last post

Locked

5 Replies

1982 Views

Last post by PCGUY
Sat May 31, 2008 9:39 am
Easiest to build Spud Gun Ever!!

Last post by iisthemuffin
Replies: 17
by kf4oij » Fri Jan 05, 2007 12:36 am
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So, I came up with this a while ago, and finaly got around to taking some pictures and putting them on my website.

I posted all the construction...

Last post

i cant exactly tell what the bottle is made from (plastic, glass, whatever) but i made a combustion from a gatorade bottle once...and im sure you...
17 Replies

10933 Views

Last post by iisthemuffin
Sat May 31, 2008 12:14 am
abs gun?

Last post by starman
Replies: 2
by uncomplientspud » Fri May 30, 2008 7:37 pm

First post

Hey there!

i have made myself a gun out of abs and have some safety concerns. many have said ye sits fine, others no.

What is the opinion of us...

Last post

Why don't you throw some pics and deeper specs up for us to peruse. ABS is usually fine as a material, but a lot depends on your actual design.

2 Replies

1478 Views

Last post by starman
Fri May 30, 2008 7:48 pm
premixed fuel.. questions...

Last post by DYI
Replies: 2
by trae08 » Fri May 30, 2008 6:09 pm

First post

ok, hi, im working on a premixed fuel design it would mix the propane with compressed air before it enters the chamber..

but i have a question. im...

Last post

but i have a question. im working on a prototype using a 20 oz bottle and i was wondering i know if you put a drop of oil in a hpa paint ball tank it...

2 Replies

1145 Views

Last post by DYI
Fri May 30, 2008 7:22 pm
check valve for exhaust

Last post by jr
Replies: 17
by JET47 » Fri May 23, 2008 12:11 am
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i just thought of something, not sure if it will work though, because i might be a little ignorant of how check valves function.

but it you had a...

Last post

What if you were to install 2 chamber fans? The fans would blow in opposing directions. use a big fan to vent and a smaller on to mix.. and you could...
17 Replies

6823 Views

Last post by jr
Thu May 29, 2008 10:49 pm

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