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

942774 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

304514 Views

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

Topics

Howitzer project

Last post by thunderskunk
Replies: 9
by thunderskunk » Fri Apr 04, 2014 7:59 pm

First post

Hello Folks!

This is a post I made on a machinists forum, so bear with me a bit.

I saw a post about someone wanting to rifle a barrel for a PVC...

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This is the final build post. I scrapped those canisters for an even simpler shell, but there's no way to make it hybrid, only combustion.

9 Replies

7697 Views

Last post by thunderskunk
Mon Aug 04, 2014 7:30 am
My 2nd one. (With some probs) :(

Last post by dart guy
Replies: 3
by GeoNet » Mon Jan 06, 2014 6:48 pm

First post

OK guys. Hello. Im pretty new in this forum (but not new to combustion cannons), so I will make my topic as constructive as possible....

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Clean out adapter may be a better idea, that idea with screws was pretty dumb. If you think about it the big clean out adapter has a huge surface...

3 Replies

3574 Views

Last post by dart guy
Thu Jul 24, 2014 6:11 pm
Semi auto (possible full auto) combustion gun

Last post by dart guy
Replies: 8
by Dijit80 » Wed Jun 18, 2014 2:03 am

First post

My first post here. I've built simple combustion spud guns and pen cannons before, but I'm wanting a good summer project and thought of a more...

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What about a qev? If you where to make a container for a hybrid like 1x fuel mix at 120 psi (a mixer fan would be needed in container) and then run...

8 Replies

14507 Views

Last post by dart guy
Wed Jul 23, 2014 10:07 pm
Lazy day build

Last post by Juggernaut12121

by Juggernaut12121 » Sun Jul 20, 2014 2:12 pm

Today I got pretty bored and decided to throw together a little combustion gun (seeing as my other pill bottle one broke)
Anyway, everything was...

0 Replies

6932 Views

Last post by Juggernaut12121
Sun Jul 20, 2014 2:12 pm
Picture of all my toys

Last post by BowerR64
Replies: 33
by BowerR64 » Mon Apr 21, 2014 4:09 am
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Dug out all my toys and set em all up on the kitchen floor, i think ive fired just about all of them a time or 2 and put the videos on youtube. Its...

Last post

Well i'm still here, no mishaps or problems everything went very well. I didn't shoot them all but there are a few that i think are better designed...
33 Replies

18062 Views

Last post by BowerR64
Sat Jul 05, 2014 4:29 am
Interrupted Screw

Last post by thunderskunk
Replies: 4
by thunderskunk » Sat Jun 21, 2014 11:59 pm

First post

Evenin folks

So I had a change of heart. I can't get my ignition to work in the shells I've been trying to get my howitzer to fire, so I'm giving up...

Last post

Just in case someone looks at this and wants to do the same thing:

I've fired the gun on several occasions now. My shells work awesome, and the...

4 Replies

4477 Views

Last post by thunderskunk
Thu Jul 03, 2014 9:55 pm
Calcium carbide is so dangerous!

Last post by Ragnarok
Replies: 17
by BowerR64 » Wed Jun 18, 2014 7:23 pm
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Check it out, lucky no one was hurt.

Careful sir, our coffee is extra hot today! :alien:

Last post

I really dont understand how it can shoot a tennis ball 100 yards in the air yet it can push a paper cup out without ripping it apart.
What does...
17 Replies

14106 Views

Last post by Ragnarok
Mon Jun 30, 2014 6:19 am
Best ways to use ether as fuel?

Last post by jimmy101
Replies: 2
by oldmanbeefjerky » Fri Jun 20, 2014 10:19 pm

First post

Hi,

as soon as i discovered the wonders of using ether, from engine starter spray i fell in love immediately, it works well in my relatively small...

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Ether really isn't any more (or less) powerful than any other hydrocarbon fuel. It might be a bit easier to get a consistent amount of fuel in the...

2 Replies

3539 Views

Last post by jimmy101
Wed Jun 25, 2014 6:44 pm
FINALLY Completed Howitzer

Last post by jackssmirkingrevenge
Replies: 2
by thunderskunk » Sun Jun 22, 2014 9:50 pm

First post

Good evenin folks!

I've been waiting months for this. This gun has gone from a vintage-looking wooden carriage with shells the size of large spud...

Last post

Sweet, sweet build!

My only complaint would be that the skinny bicycle wheels make it lack a bit of gravitas, but otherwise fantastic job!

2 Replies

4076 Views

Last post by jackssmirkingrevenge
Tue Jun 24, 2014 9:13 am
New Golf Balls or Used Golf Balls

Last post by Technician1002
Replies: 4
by WilsonMat » Wed Jun 04, 2014 9:21 am

First post

Hello All,

Which one is better new or used golf balls ? I have found two sites for used golf balls like lostgolfballs.com and golfballhogs.com....

Last post

Since I typicaly get only one shot per ball, definately used. Free preferable.

4 Replies

3574 Views

Last post by Technician1002
Sat Jun 14, 2014 6:49 pm
Anyone try a PVC Rocket?

Last post by BowerR64
Replies: 35
by BowerR64 » Mon May 19, 2014 11:19 pm
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Found a how to on youtube to build a 3 motor and a Rocket using a foam pad and the top of a 2 liter pop bottle.

I built a couple a few weeks ago,...

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This is all the further you can put the marshmellow down the barrel, hopefully this will be ok. Ill try it but i doubt ill get much velocity from...
35 Replies

17005 Views

Last post by BowerR64
Fri Jun 13, 2014 1:16 am
*NEW* My M-55 Mk. IV Metered Propane Cannon

Last post by Tombstone
Replies: 2
by Tombstone » Mon May 26, 2014 6:53 pm

First post

Here is my latest and best big gun!! Meet the M-55 Mk. IV !
*BTW, the roadsign was straightened and re-attached to the post after that massive...

Last post

Hehe, thx !! Me too man, i like to make my guns, solid, badass and lookin' good, although, it still aint perfect finish-wise, cause i've had to...

2 Replies

4103 Views

Last post by Tombstone
Mon May 26, 2014 9:51 pm
hey this my first video in youtube

Last post by satriyo
Replies: 3
by satriyo » Sat Apr 05, 2014 6:27 am

First post

thank you for watching

Last post

thank you sir. this is my first spud gun. the fuel is alcohol 70% + methylated spirit. but i have problem with attach the dot sight scope to my gun.

3 Replies

3073 Views

Last post by satriyo
Mon May 19, 2014 8:03 pm
Could you find weak spots with video?

Last post by Anatine Duo
Replies: 3
by BowerR64 » Wed May 14, 2014 5:00 pm

First post

I shot a little carbide canon i built last night around dusk, when it fires it really glows and as i look i can see all the little sections i have...

Last post

Great shots!

3 Replies

2611 Views

Last post by Anatine Duo
Thu May 15, 2014 7:41 am
Design advice, would this work?

Last post by jackssmirkingrevenge
Replies: 34
by vng21092 » Sun Apr 27, 2014 7:24 pm
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First post

Hey guys, so this is an outline of what I want to build

Chamber will be 1 1/4'' x 6'', barrel will be 1/2'' x 24'' sleeved inside of a 1 1/4''...

Last post

BowerR64 clearly knows what he's doing, but in general the use of carbide cannons is frowned up on the forum as being potentially unsafe.
34 Replies

15425 Views

Last post by jackssmirkingrevenge
Tue May 06, 2014 6:53 am
428 cubic inch combi cannon

Last post by Fnord
Replies: 3
by sw5amped » Sun Mar 23, 2014 6:17 pm

First post

My new beast!!!!

Last post

Video request seconded. Somehow I don't think the pictures justify the scale of this thing...

3 Replies

3994 Views

Last post by Fnord
Sun Apr 20, 2014 10:18 am
2 at the same time?

Last post by jackssmirkingrevenge
Replies: 3
by BowerR64 » Fri Apr 18, 2014 4:56 pm

First post

The larger sparker i got from either lowes or walmart i cant remember has 2 output leads for it. So ofcorse i had to make a set of cannons to go with...

Last post

I saw the topic title and thought I still had the nudevista tab open :roll:

3 Replies

2712 Views

Last post by jackssmirkingrevenge
Sat Apr 19, 2014 8:05 am
First combustion(Bouncy Ball-zooka!)

Last post by Boomer58cal
Replies: 4
by Boomer58cal » Mon Apr 07, 2014 9:07 pm

First post

Hello SpudFiles!

This is my third cannon and I'm in about my 5th month of spudding. My other two cannons are pneumatics. The first was a compact...

Last post

Not bad, metering and everything! You should be happy with the benefits of the fan.

I love the propane meter! The few spud guns I played with when...

4 Replies

4237 Views

Last post by Boomer58cal
Wed Apr 16, 2014 9:18 pm
Digital PSI gauge?

Last post by BowerR64
Replies: 13
by BowerR64 » Sat Apr 12, 2014 7:04 pm

First post

Can you convert a cheap tire PSI gauge to work on our cannons some how? Im thinking about putting one on one of my carbide cannons to gauge the...

Last post

I've tried the static ones before and they don't quite work. The problem is that the pressure rise is very fast (compared to what the gauge was...

13 Replies

7375 Views

Last post by BowerR64
Mon Apr 14, 2014 6:49 pm
Awesome Ignition - Cheap and easy!

Last post by jimmy101
Replies: 18
by TedC » Wed May 29, 2013 3:59 pm
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First post

Hi All,

I've been lurking long enough - time to go legit.

I've made two spud guns with the advice gathered here and elsewhere.

I've been using the...

Last post

Too bad those are illigal where i live :(

Are these illegal too?

;) Interesting page, but the guy doesn't know jack about electronics,...
18 Replies

11532 Views

Last post by jimmy101
Sun Apr 13, 2014 4:36 pm
My second youtube video (shooting 3 cannons)

Last post by BowerR64
Replies: 3
by BowerR64 » Tue Apr 08, 2014 1:09 am

First post

I took 3 of em to this road/overpass that gets little to no traffic. A guy with a crotch rocket was flying back and forth between shots teaking his...

Last post

I shot the Nerf one again today 5 more times i about lost another ball because of the wind. Im down to 5 balls now i lost one at a friends last...

3 Replies

2640 Views

Last post by BowerR64
Wed Apr 09, 2014 8:26 pm
help on butan and oxygen powered cannon

Last post by jackssmirkingrevenge
Replies: 3
by Brice » Sat Apr 05, 2014 12:40 pm

First post

I have been a big fan of pneumatic cannons for a long time, for me a decent cannon was air powered, and all my cannons were air powered, pneumatics...

Last post

Damn, it's scary
That's a big issue if oxygen is so dangerous, but those airguns were using HP, you think it could detonate even at atmospheric...

3 Replies

2907 Views

Last post by jackssmirkingrevenge
Tue Apr 08, 2014 6:25 am
Video shooting 2" chuckit tennis balls using carbide

Last post by BowerR64
Replies: 1
by BowerR64 » Fri Apr 04, 2014 10:13 pm

First post

If you go on youtube and just search carbide cannon, carbide, carbid even karbid you will see a ton of videos with this stuff. The majority are all...

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I went ahead and painted it, my thought was to sort of match the color scheme of the balls but then i went with a sort of Nerf color and then photo...

1 Replies

2115 Views

Last post by BowerR64
Sat Apr 05, 2014 5:30 am
Goal: maximum noise

Last post by BowerR64
Replies: 18
by mdmbkr » Sat Jun 22, 2013 5:20 pm
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Greetings!

I'm returning to this hobby after a multi-year hiatus. My first foray was a spray-and-pray propane fueled cannon with BBQ ignition, two...

Last post

How loud woul dyou guess it is?

Im using calcium carbide like Labtecpower sugest the dutch have been using this stuff for years im almost tot he...
18 Replies

8922 Views

Last post by BowerR64
Tue Apr 01, 2014 2:57 am
Combustible Gas Indicator?

Last post by Technician1002
Replies: 5
by BowerR64 » Wed Mar 26, 2014 10:53 pm

First post

Is there any cheap sniffer thing we could mount to the top that would signal or show an LED when the gas is at its best mix?

There are a few...

Last post

The gas sensor used to detect Carbon Monoxide, Natural Gas, etc are generally based on the same semiconductor sensor. If you get the datasheet, you...

5 Replies

3457 Views

Last post by Technician1002
Thu Mar 27, 2014 8:11 pm

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