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...

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thank you for creating this website is there anything i can do to help
15 Replies

1125680 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

358341 Views

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

Topics

Pulse Sparking System

Last post by Insomniac
Replies: 13
by Binder17 » Fri Dec 29, 2006 6:56 pm

First post

Today I put together a circuit that I am going to use in my cannon. I used an ignition coil out of an old car, condensor, and 12 volt power source....

Last post

Here it is. The spark is small but it has a fair bit of power to it. I trigger it by pushing the alfoil tab down to shorten the spark gap. It is...

13 Replies

5286 Views

Last post by Insomniac
Sun Dec 31, 2006 12:03 am
Muzzle Flash

Last post by ProfessorAmadeus
Replies: 8
by Bluetooth » Fri Dec 29, 2006 8:47 pm

First post

I love watching the bright blue and orange muzzle flash at night with my combustion. Whats the longest flame you have ever gotten out of your barrel...

Last post

I have a 1 foot 4 inch chamber and a 5 foot 1 1/4 inch barrel. I use hair spray but I have never seen a flash. I might have to little amount of fuel....

8 Replies

3676 Views

Last post by ProfessorAmadeus
Sat Dec 30, 2006 10:30 pm
New Ignition System Design

Last post by mark.f
Replies: 13
by Karatedude13 » Tue Oct 17, 2006 7:57 pm

First post

I've never seen anyone mention this, so I think i've probably invented it. This being said, DON'T STEAL MY IDEA. I don't mind people using it,...

Last post

I never said that no one's ever thought of it, I'm saying that no one's ever said they've used it. And it's pretty simple to replace. That was the...

13 Replies

7525 Views

Last post by mark.f
Sat Dec 30, 2006 7:40 pm
The Tornado (updated)

Last post by Bluetooth
Replies: 8
by Bluetooth » Fri Dec 29, 2006 2:23 pm

First post

This is my new mini combustion cannon The Tornado . It's called that because sometimes when I take off the end cap some of the oust that I use as...

Last post

I finished the new grip. Heres a pic :D .

EDIT: For fuel now I use un-metered propane. I just spray some in with a blow torch head. It works really...

8 Replies

2387 Views

Last post by Bluetooth
Sat Dec 30, 2006 2:00 pm
i need help from pro's i need alternative ignition idea

Last post by squeaks
Replies: 3
by newkidspudster » Sat Dec 30, 2006 11:48 am

First post

ok .....the bbq ignitors around my house cost 10-15 $ i need cheaper will you please help me out with some easy but cheap ignition sources....

Last post

Yes, the spudwiki has pictures for those visual learners. If it doesn't have all the info you need then use the forum search option. You usually can...

3 Replies

1513 Views

Last post by squeaks
Sat Dec 30, 2006 11:58 am
I like posting in all caps

Last post by squeaks
Replies: 1
by newkidspudster » Sat Dec 30, 2006 11:18 am

First post

ok.i make a huge spud gun an average combustion,but it is 7 feet long.thats not the problem.....i cant fire it in my backyard but the cannon shoots...

Last post

Just take your cannon somewhere other that your backyard.

1 Replies

3726 Views

Last post by squeaks
Sat Dec 30, 2006 11:36 am
Why does my micro just stop working?

Last post by newkidspudster
Replies: 3
by modernartistlathey » Fri Dec 22, 2006 5:04 pm

First post

It works fine, then just stops, then after a while of being left, works fine again.
Some residue builds up coating the inside, if I get rid of it,...

Last post

it should help wipe it clean after every firing session.dont let the gunky stuff sit in there.

3 Replies

1714 Views

Last post by newkidspudster
Sat Dec 30, 2006 11:34 am
Coke Bottle Combustion

Last post by zeigs spud
Replies: 23
by PCGUY » Sat Feb 12, 2005 5:13 pm
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First post

COKE BOTTLE COMBUSTION

Provided By - GalFisk

This is my first spud gun, built only from parts I found around the farm. It began as a bottle with...

Last post

Thats a pretty interesting meathod. All in all pretty nice cannon.
diddo lol. i'm not sure if i missed it but what is the burst disk made of?
23 Replies

28118 Views

Last post by zeigs spud
Fri Dec 29, 2006 2:47 pm
my new gun

Last post by Rambo
Replies: 10
by Rambo » Sun Jun 11, 2006 5:36 am

First post

This is my new gun.Because I don't have a BBQ ignitor or other sorse of big spark I use a second small gun to ignite the big chamber=>reliable...

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The ignition is in the center.I think that's enough.And 5% O2 in the mix will be much better and reliable then the super-multi-point-ignition system

10 Replies

4007 Views

Last post by Rambo
Fri Dec 29, 2006 5:40 am
Do I need to mod my spud gun?

Last post by Insomniac
Replies: 10
by garrettee » Thu Dec 28, 2006 8:09 am

First post

Ok guys, I built a 4' by 1 1\2'' barrel and 2' by 3'' chamber combustable (soon to be stun gun ignition) spud gun. I live in a neighborhood, so I...

Last post

Shortening your chamber won't help performance. It will make the gun quieter though. The way you have it now, the explosion shoots the spud, but all...

10 Replies

2759 Views

Last post by Insomniac
Fri Dec 29, 2006 12:01 am
Can I get muzzle break directions for my gun

Last post by garrettee

by garrettee » Thu Dec 28, 2006 11:43 pm

New question guys. How do I make a muzzle break for my 1 1\2'' barrel? After I get this in place , I'll paint and try to post pic's.

0 Replies

1929 Views

Last post by garrettee
Thu Dec 28, 2006 11:43 pm
My newest gun

Last post by Deko
Replies: 6
by Etc1990 » Thu Dec 28, 2006 3:30 am

First post

I built this one a couple days ago,it's very simple at the moment but i have plans for it in the future.I havn't had the chance to launch any spuds...

Last post

very nice gun cant wait to see it after you mod it, and when you do try to post some more pics of it and some damage shots

6 Replies

2148 Views

Last post by Deko
Thu Dec 28, 2006 4:23 pm
VERY Simple Combustion

Last post by mark.f
Replies: 19
by mark.f » Thu Dec 21, 2006 3:09 pm
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This is a gun I made today for around 20 bucks. Simple, easy to use, and quite powerful given it's size. Chamber is 18 of 2 SCH-40, and the barrel is...

Last post

My hose clamps aren't very tight.

If you want tighter hose clamps, just use steel 1 steel socket weld couplings, (McMaster), and cut slivers off the...
19 Replies

6869 Views

Last post by mark.f
Thu Dec 28, 2006 7:29 am
The ever-popular "first cannon" topic.

Last post by sergeantspud2
Replies: 5
by paaiyan » Wed Dec 27, 2006 10:40 pm

First post

Here's the specs. Keep in mind this is my first so it is rather simplistic. My total cannon length is about 8 1/2 feet. The chamber is 2 feet of...

Last post

Oh yeah my bad I thought you were going to use a rocket ignitor each time.

5 Replies

2256 Views

Last post by sergeantspud2
Thu Dec 28, 2006 12:00 am
Project "Sweet Melissa"

Last post by paaiyan
Replies: 16
by HAYLO_Stealer » Tue Nov 07, 2006 5:11 pm
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First post

How do i find the volume of my chamber for my gun?
Is there a specific math equation im missing. I need to know so i can correctly tune my propane...

Last post

The equation for volume is pi (3.14) X radius squared X length.
16 Replies

7193 Views

Last post by paaiyan
Wed Dec 27, 2006 11:42 pm
My Gun Won't Spark

Last post by Insomniac
Replies: 8
by jjjd » Wed Nov 29, 2006 12:51 pm

First post

I just Built a swall potato gun out of abs piping and just ude some old skrews in my baesment as conductos but inside the gun it want spark, all the...

Last post

@thedub88
Yes static builds up on plastic, but that is the plastic getting either a positive or negative charge. That is different to conducting...

8 Replies

4000 Views

Last post by Insomniac
Wed Dec 27, 2006 11:08 pm
Legal issues

Last post by Bluetooth
Replies: 5
by paaiyan » Wed Dec 27, 2006 10:10 pm

First post

So I'm new here and I bet jsut about everyone has asked this at some point but alas, I shall once again. Does anyone know about the legality of a...

Last post

Stay away from the public with them though. Stay in private areas or forests or deserts.

5 Replies

2452 Views

Last post by Bluetooth
Wed Dec 27, 2006 10:32 pm
new to combustion

Last post by Deko
Replies: 2
by Deko » Tue Dec 26, 2006 4:10 pm

First post

im new to combustions and was wondering whats the point of have two valves on a combustion, is it propane injection? or does it have another...

Last post

ok thanks for the site pete

2 Replies

1281 Views

Last post by Deko
Tue Dec 26, 2006 4:15 pm
Pimped Out Copper Mini

Last post by spit_spud
Replies: 18
by Zamamee » Tue Jun 06, 2006 7:00 pm
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First post

This is my first and only mini (but hopefully not last). After several months of random upgrades I decided to register to this site and post it. The...

Last post

bomb has been planted, how are going to hold the gun? just like that?
18 Replies

8312 Views

Last post by spit_spud
Tue Dec 26, 2006 4:20 am
medievalman's cammo mini

Last post by medievalman
Replies: 3
by medievalman » Sun Dec 24, 2006 5:37 am

First post

this is my first(working) mini combustion(or rather, my first combustion at all) it is just like everyone else's, but i thought id post it because of...

Last post

actually, the barrel is just a pen, so whatever that thing is(i dont even know :lol: ) it was just on the pen. i used to have a much cooler barrel....

3 Replies

2052 Views

Last post by medievalman
Mon Dec 25, 2006 5:31 am
Sleved Barrel trouble

Last post by frankrede
Replies: 11
by jjjd » Fri Dec 22, 2006 9:22 pm

First post

Hey guys, how would you go about making a sleved barrel, i want it for golf balls, so 1 1/2 , but how do you sleve it inside the 2 ?

Thanks Andrew

Last post

I say the same thing about haircuts.lol.

11 Replies

3337 Views

Last post by frankrede
Sun Dec 24, 2006 1:56 am
My First Ever Spudgun

Last post by MisterSteve124
Replies: 3
by PVC Arsenal 17 » Sat Dec 23, 2006 2:54 pm

First post

I made this little mini about 2 years ago on Thanksgiving.
BBQ ignitor, pen barrel, medicine bottle.

It has several new tape-overs through time....

Last post

Every mini I have made has only lasted me like 2 days lol good job on keeping it this long

3 Replies

1964 Views

Last post by MisterSteve124
Sat Dec 23, 2006 10:27 pm
Big Red

Last post by Bluetooth
Replies: 16
by PCGUY » Sat Feb 12, 2005 10:57 pm
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First post

BIG RED

Provided By - pedoo

Two 4 x18 chambers elbowed to a 2 x5' barrel. Ignition comes from electronic BBQ igniter, with duel sparkers. (...

Last post

4 months was a long time ago. The post before that was 11 months ago and I don't think that person ever had an account here.
16 Replies

12545 Views

Last post by Bluetooth
Sat Dec 23, 2006 6:02 pm
Mini combustion electrode sealing

Last post by mark.f
Replies: 7
by Bluetooth » Fri Dec 22, 2006 2:40 pm

First post

For a combustion launcher what should i use to seal the electrodes? I already tapped the holes but i still want to make sure it's air tight and so...

Last post

Just use a neoprene washer under the head of the machine screw, and then screw on a hex self-sealing nut, (have a ring of rubber on the inside on one...

7 Replies

2272 Views

Last post by mark.f
Sat Dec 23, 2006 9:23 am
Stuper stimple

Last post by Bluetooth
Replies: 11
by ProfessorAmadeus » Fri Dec 22, 2006 12:41 pm

First post

Heres my first gun that I ever made. It's just like everyone elses first gun but mines special. I put love into it. :) When I first fired this bad...

Last post

What kinda gun do you have? I have a semi-auto PMI. I don't really like the paint eating autos.

11 Replies

3357 Views

Last post by Bluetooth
Fri Dec 22, 2006 6:27 pm

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