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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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

945111 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

305885 Views

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

Topics

My first big cannon

Last post by KingKyro
Replies: 12
by KingKyro » Sun Sep 12, 2010 7:53 am

First post

this is my first big potato cannon i built. I call it BIG DADDY.
the chamber is 4 PVC that i cut to a 2' length. the barrel is a 4' long piece of 2...

Last post

I can agree there. The first thing i thought of when i read it was the old movie a christmas story,,, ( You'll shoot your eye out !!! ). The only...

12 Replies

5827 Views

Last post by KingKyro
Tue Sep 21, 2010 12:53 pm
Micro combustion problems...

Last post by jackssmirkingrevenge
Replies: 7
by qwerty » Sun Sep 19, 2010 5:12 am

First post

Here's the scenario:

So i fill my syringe with 2ml of propane, i inject it into the chamber (which has a barrel on with a BB inside) i then pump the...

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(not exact) for a 3x mix i would want %12 propane and 30psi?

pretty much ;)

7 Replies

2378 Views

Last post by jackssmirkingrevenge
Sun Sep 19, 2010 11:09 am
Simple & probably stupid question..

Last post by jimmy101
Replies: 4
by bobsta » Sat Sep 18, 2010 2:15 am

First post

Sorry guys, looking at your lovely forum and seeing the types of cannons you guys make.. gives me one hell of a hard on :P

But I'm an amateur and I...

Last post

What Insomniac said, and Bobsta you were on the right track with the BBQ is grounded .

The BBQ isn't actually grounded, but the metal BBQ is one of...

4 Replies

1853 Views

Last post by jimmy101
Sat Sep 18, 2010 10:12 am
Prometer Suite ES question

Last post by BFC
Replies: 2
by BFC » Fri Sep 17, 2010 11:26 am

First post

In the data input area it asks for your meters residual volume . What exactly is the Residual Volume. Its confusing me, Im probably making it more...

Last post

all cleared up,

thank you for the reply
BFC

2 Replies

1401 Views

Last post by BFC
Fri Sep 17, 2010 6:50 pm
Propane containment options

Last post by jimmy101
Replies: 10
by broken_system » Fri Sep 17, 2010 1:12 am

First post

Hey guys, been a while since I have written anything here. Question for you guys, I am still working on a smaller scale launcher with a fairly quick...

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Another possibility is a butane refill canister. It's bigger than a butane lighter and easier to plumb to. Probably shoot a thousand shots form one.

10 Replies

3502 Views

Last post by jimmy101
Fri Sep 17, 2010 5:37 pm
First Metered Combustion

Last post by Lockednloaded
Replies: 4
by motorfixer1 » Thu Sep 16, 2010 6:11 pm

First post

Finally got around to finishing my first metered propane combustion cannon this week. Test fired it and it seems good, shoots a tater right through...

Last post

sorry, I didn't realize summit racing was a store, I assumed it was the brand :oops:

4 Replies

2903 Views

Last post by Lockednloaded
Thu Sep 16, 2010 10:48 pm
Fuel Needs A Safe Way To Test

Last post by Technician1002
Replies: 21
by jrrdw » Fri Sep 10, 2010 2:39 pm
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As a result of discussion here the topic of a safe way to test a product to see if it will be a good fuel for a 'spray and pray' or standard...

Last post

Hydrogen flame front prorogation is slightly faster than Acetylene. It is not recommended in any launcher that would break if you pounded on it with...
21 Replies

7103 Views

Last post by Technician1002
Thu Sep 16, 2010 11:16 am
Tripple Barrel Spud Cannon

Last post by bighead33
Replies: 15
by marcin411 » Sun Sep 12, 2010 9:30 pm
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This is my third spud gun. It has 3 48 long 1.5 barrels that rotate on the center shaft for quick reloads. It takes 2 people to reload but with some...

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one more thing in some of those pics you had the gun pointing downward and i was thinking if you where using a regular magnet to hold your blowtorch...
15 Replies

9416 Views

Last post by bighead33
Mon Sep 13, 2010 9:08 pm
First spud gun and I'm having issues.

Last post by jrrdw
Replies: 9
by dan-27 » Fri Sep 10, 2010 10:43 am

First post

Hi there I was in the Sates this year for the 4th of July and saw one of these beasts for the first time and knew I had to build my own when I got...

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As far as testing fuels safely.... here .

9 Replies

2222 Views

Last post by jrrdw
Fri Sep 10, 2010 2:42 pm
propane nuke tube

Last post by NuKe..TuBe..420
Replies: 12
by NuKe..TuBe..420 » Wed Sep 08, 2010 10:50 am

First post

well this is my second gun ive made the only problems ive had is the ignitor so i ordered a electric ignition system i hope it works better if any...

Last post

okay ill check them out thanks and as far as the projectile i have a junk of t4 aluminum that weighs next to nothing an i machine it down to fit in...

12 Replies

6574 Views

Last post by NuKe..TuBe..420
Fri Sep 10, 2010 12:15 pm
Second potato gun, poor results

Last post by Heimo
Replies: 6
by Stampede10343 » Sat Sep 04, 2010 8:04 pm

First post

Alright so i made a few simple spray and pray guns and have been browsing this site for answers but i still have a few questions..

My first gun is a...

Last post

what now?
now you add metered propane to the setup

6 Replies

1893 Views

Last post by Heimo
Mon Sep 06, 2010 11:27 am
B.S.R. 75 breech loading bolt action spud gun

Last post by jackssmirkingrevenge
Replies: 9
by spudrouge420 » Sat Aug 07, 2010 5:37 am

First post

youtube video....

Last post

I had missed this, very well put together. I second the suggestion for proper metering though, and surely after what you've accomplished it would be...

9 Replies

9369 Views

Last post by jackssmirkingrevenge
Sun Sep 05, 2010 5:15 am
propane meter

Last post by hi
Replies: 1
by Grignacke » Thu Sep 02, 2010 9:00 pm

First post

Hello. Is it possible to create a propane meter...
1) ball valve
2) length of pipe with the pressure gauge here
3) ball valve
without a regulator?...

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Yes. You need to figure out how much pressure to put in the pipe before releasing it into the chamber. Thats how i made all of mine, I've never used...

1 Replies

1500 Views

Last post by hi
Thu Sep 02, 2010 11:42 pm
gun problems

Last post by bighead33
Replies: 6
by evallia » Mon Aug 23, 2010 11:09 pm

First post

Alright my big gun ain't working right now its 5' 2 barrel and 2' 4 chamber and it only shoots a potato another wo20 yards I'm using rightguard for...

Last post

maybe your using the wrong right guard. be sure your propellant is flammable.

6 Replies

2703 Views

Last post by bighead33
Wed Aug 25, 2010 11:43 pm
Fully Automatic potato cannon project.

Last post by Conrad2468
Replies: 63
by Conrad2468 » Thu Jul 08, 2010 11:03 pm
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My buddy and i are attempting this, ive been strongly urged to post this idea on the forums (not by my buddy). We plan to use propane and solenoid...

Last post

The toes were sort of a size estimation. And I figured out about the backpressure thing when we had the second solenoid hooked up to the end of the...
63 Replies

28319 Views

Last post by Conrad2468
Tue Aug 24, 2010 6:34 pm
WIP Breech Loading Combustion

Last post by Gun Freak
Replies: 10
by kjjohn » Tue Aug 17, 2010 8:57 pm

First post

This is combustion cannon that I did a lot of work on earlier this year, but never got around to finishing. I will probably complete it once my...

Last post

@bighead, the barrel already slides, those are repair couplings. It is just like the old breech load on my golf ball cannon Superna! :D Great design...

10 Replies

3817 Views

Last post by Gun Freak
Fri Aug 20, 2010 7:54 pm
Gas Operated Reload

Last post by Fnord
Replies: 10
by Grignacke » Mon Aug 16, 2010 3:15 pm

First post

Hello. I was brainstorming a method of quickly reloading a simple (or complex) combustion spud gun. Eventually Gas-operated reloading system used by...

Last post

I can see this potentialy working, but with the low pressures from plain combustion I doubt it would cycle in a dry-fire test. With a projectile in...

10 Replies

3957 Views

Last post by Fnord
Tue Aug 17, 2010 9:56 am
A Few Advanced Combustion Questions

Last post by clemsonguy1125
Replies: 30
by clemsonguy1125 » Fri Aug 13, 2010 6:15 pm
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I finally got the hang of piston valves and decided it was time to try something new. I decided on a Advanced Combustion with a 3 inch by 20 inch...

Last post

Ok I was planning on filling the cap with epoxy or using a threaded plug, also I'll use the single layer then slide a piece of 4 inch pipe over it...
30 Replies

17039 Views

Last post by clemsonguy1125
Mon Aug 16, 2010 1:10 pm
Size parts

Last post by ramses
Replies: 7
by toon » Wed Aug 04, 2010 4:38 pm

First post

What is the best size of pipes and stuff for a potato gun?
Please in cm and m not in inch and stuff.

Thank u verry much. :D :D :D

Last post

Bigger is always better. There is no replacement for displacement :D

boost helps... :D :D

Bigger is only better when the fuel burns before the...

7 Replies

2748 Views

Last post by ramses
Wed Aug 04, 2010 6:47 pm
my first combustion

Last post by wyz2285

by wyz2285 » Wed Aug 04, 2010 4:11 am

This is my first combustion build :) ,a granad lancher for my homemade M16.equiped with a chamber fan,1.5 v DC ignition.The black box is the fan...

0 Replies

4473 Views

Last post by wyz2285
Wed Aug 04, 2010 4:11 am
Ignition Problem

Last post by etlprts
Replies: 10
by etlprts » Wed Jul 28, 2010 12:47 pm

First post

Hi,

I've got an issue with my combustion cannon where the ignition will spark for the first couple of goes, but then nothing....
If I then short the...

Last post

Thought I'd let you now, it's now working a treat!
I've shortened the gap slightly, it's now around 4mm, but I still need to short the contacts after...

10 Replies

3333 Views

Last post by etlprts
Mon Aug 02, 2010 5:49 pm
Propane Cannon Building Question

Last post by SpudBlaster15
Replies: 11
by BFC » Sun Aug 01, 2010 2:09 pm

First post

So Im looking to build a Adv. Propane cannon

Thing is finding all pressure rated piping is hard, Ive looked at all the local hardware stores, and...

Last post

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

11 Replies

4570 Views

Last post by SpudBlaster15
Mon Aug 02, 2010 12:24 pm
My First Combustion (more or less)

Last post by VirusX
Replies: 19
by DirtyDan » Thu Jul 19, 2007 1:37 am
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First post

Greetings everyone!
The name's Dan... DirtyDan if you prefer. This is, as I am somewhat reluctant to say, my first post here in the forums. Seeing...

Last post

What does such a cannon cost in USA, round about?

The prices for pressure rated pipes are damn expensive in Germany :x
19 Replies

13326 Views

Last post by VirusX
Sat Jul 31, 2010 8:49 am
Powering ignition and chamber fan.

Last post by Biopyro
Replies: 10
by Biopyro » Tue Jul 20, 2010 11:33 am

First post

What's the best way to power a 12v fan and a 9v HV supply on a cannon. I'm thinking a 9v battery and 2(maybe 4) AAs, but will they give me enough...

Last post

I wound up going for the piezo BBQ igniter separately, then 8AA batteries in a purpose built enclosure for the 12v supply. It gives plenty of power...

10 Replies

5243 Views

Last post by Biopyro
Sat Jul 31, 2010 8:45 am
Barrel Lube

Last post by Sonicboom101
Replies: 15
by Sonicboom101 » Tue Jul 27, 2010 4:52 pm
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When I first started building spud cannons I was told by my friend that I need to lube up the barrel with WD-40. I've been thinking after all this...

Last post

Most of my guns I have sharpened the end of witch I'm loading the spud in. I have never tried any other methods of cutting the projectile down to...
15 Replies

5836 Views

Last post by Sonicboom101
Fri Jul 30, 2010 9:54 pm

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