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...

Last post

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

1125849 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

358383 Views

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

Topics

30kv igniter questions

Last post by natas
Replies: 11
by hawktalk » Sun Sep 02, 2012 6:20 am

First post

Im planing on using a 30kv module from ultimatespudgun.com as my ignition system for my new gun i was wondering what else do i need to get the module...

Last post

the ignitor from USG can be connected directly to a battery ( at least from the one i got from USG ), if you do, it will continue to ignite untill...

11 Replies

6392 Views

Last post by natas
Thu Oct 11, 2012 4:50 pm
Spud cannon does not fire

Last post by mackconsult
Replies: 8
by mackconsult » Tue Sep 11, 2012 11:19 pm

First post

I built up the following spud cannon ...

Just installed a 100kv stun gun and when you look down the barrel you can totally see a spark at the...

Last post

So I did drill and tap on the barrel down at the base for venting and also fueling.

8 Replies

6653 Views

Last post by mackconsult
Thu Oct 04, 2012 8:07 pm
propane problems

Last post by jmc21986
Replies: 9
by jmc21986 » Mon Aug 06, 2012 8:03 pm

First post

i have a 3 inch chamber appx 2 feet long and a 1 1/12 inch barrel apprx 4 feet long. i built a propane meter that has a 3/8th inch pipe that is 10...

Last post

i apologize but i dont know how to do that. i live in ohio. i am a newb at all of this

9 Replies

4074 Views

Last post by jmc21986
Fri Sep 14, 2012 4:13 pm
What Do You Think?

Last post by truemanator
Replies: 16
by truemanator » Tue Aug 21, 2012 6:02 pm
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hi, just a quick (quick for a pro, VERY long time for me.) mockup of my new, simple cannon, looks pretty cool though, switch on the front is for fan,...

Last post

actually,i meant to say simple looks
16 Replies

6585 Views

Last post by truemanator
Thu Aug 23, 2012 5:31 am
Help manufacturing support for gun

Last post by andurilmike
Replies: 2
by andurilmike » Thu Aug 16, 2012 7:58 pm

First post

Hello I created this because I love creating a way to hold the barrel to prevent it looks the bas.En a large piece of wood or atres patator and fixed...

Last post

The problem being that the arm can not unfold any seul.Car same tension springs can not seem to unfold, so here is my question: How can he unfolds...

2 Replies

2942 Views

Last post by andurilmike
Fri Aug 17, 2012 9:16 am
Spark strips from metal foil adhesive tape

Last post by Zeus
Replies: 5
by Biopyro » Tue Aug 14, 2012 8:53 am

First post

So I've recently been less interesting in record-breakingly powerful cannons and more interested in reliable, safe cannons which I can take to BBQs...

Last post

Linky

Basically stained glass held together with H section lead. You see it everywhere, especially churches and cabinet doors.

5 Replies

4628 Views

Last post by Zeus
Wed Aug 15, 2012 11:47 pm
Simple Clear Combustion.

Last post by Biopyro
Replies: 4
by Biopyro » Tue Aug 14, 2012 9:55 am

First post

I had some spare time in the workshop and some acrylic pipe hanging around so I thought I'd put together a nice cannon. What else could I do with...

Last post

Ooops, forgot to mention - it was in the title. The chamber and barrel are actually acrylic. I felt comfortable because despite the reduced impact...

4 Replies

3932 Views

Last post by Biopyro
Tue Aug 14, 2012 4:36 pm
Accelerant options and effectivness. (newb here)

Last post by DekuScrub
Replies: 7
by DekuScrub » Fri Aug 10, 2012 8:16 pm

First post

looking for insight. ive only made a couple of potato cannons one of which burnt off my eyelashes, one eyebrow, and half of my facial hair.

ive made...

Last post

awesome you guys rock, i still waanted to see what the nitrous would do tho :P

7 Replies

4224 Views

Last post by DekuScrub
Sat Aug 11, 2012 5:37 pm
I am confused

Last post by Hashbrowwns 4flip
Replies: 4
by Hashbrowwns 4flip » Sun Jul 29, 2012 5:08 pm

First post

So I built my propane injection launcher and all the test fires went perfect. Put spuds through 3/8 inch plywood at 50 feet and fired consistently. I...

Last post

Guess I will buy a regulator. Thanks guys

4 Replies

3839 Views

Last post by Hashbrowwns 4flip
Thu Aug 02, 2012 8:59 am
Medium Sized/Power spud gun

Last post by Fnord
Replies: 5
by doomburger » Fri Jul 27, 2012 10:56 am

First post

Hey guys! I am quite a newbie to creating spud guns, and so I would like your help to get started on my first non mini spud gun. I am looking to...

Last post

Please read up on solvent welding and basic cannon construction. The wiki link at the top of the page has tons of information. The best way to go...

5 Replies

2835 Views

Last post by Fnord
Fri Jul 27, 2012 3:07 pm
Good igniter?

Last post by Biopyro
Replies: 9
by beastmode986 » Fri Mar 16, 2012 4:12 pm

First post

I have a home depot a Walmart a target a ace and a menards I live in the us if it makes a difference... what's the best cheap igniter commonly...

Last post

Perhaps we should have an igniters megathread? This was the most recent I could find.

In the UK, where stun guns are illegal, getting a good spark...

9 Replies

4495 Views

Last post by Biopyro
Wed Jul 25, 2012 9:57 am
Propane problems

Last post by i-will
Replies: 38
by Recoiled_monsteR » Mon Jul 16, 2012 1:20 pm
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First post

Well, I made a propane meter for my cannon. I am having a problem with get enough.......how to say it....uumph out of it. It really doesn't crack...

Last post

i had a simalar issue year ago when combustion was the addiction. try changing the barrel/chamber ratio. if the chamber is too big the barrel will...
38 Replies

16117 Views

Last post by i-will
Tue Jul 24, 2012 2:46 pm
Tennis ball mortar

Last post by jimmy101
Replies: 12
by Pseudonym » Sat Jul 21, 2012 6:49 am

First post

Does anybody know whether or not I can use deodorant sprays in lieu of lighter fluid for this: , and still maintain reasonable power?

Last post

yes it does, some fuels work some dont, and sometimes you have to figure that out, again by trial and error, Uh, no. A fuel works or it doesn't and...

12 Replies

5162 Views

Last post by jimmy101
Mon Jul 23, 2012 5:23 pm
Vapour pressure?

Last post by jimmy101
Replies: 4
by limbeh » Mon Jul 16, 2012 12:33 am

First post

Hey guys,

I got a problem here. My freshman uni course is making us do a problem of modelling a combustion cannon for thermodynamics.

I can get...

Last post

Open of closed container?

In an open container the pressure is just atmospheric, regardless of the presence of a volatile liquid.

In a closed...

4 Replies

2257 Views

Last post by jimmy101
Mon Jul 16, 2012 11:13 am
cd cannon

Last post by CpTn_lAw
Replies: 6
by Moggle NZ » Mon Jul 09, 2012 4:35 am

First post

hello ive wanted to make a cannon for a while but never have
i really wanna make a cannon that can shoot old cds and dvds
any ideas or the barrel...

Last post

I was thinking about a design...

Unless you fire at very low velocities, that looks like it will destroy itself pretty quickly...

I wouldn't be...

6 Replies

5809 Views

Last post by CpTn_lAw
Mon Jul 09, 2012 12:09 pm
How the 4th of July should be celebrated!! OOORAH!

Last post by jackssmirkingrevenge
Replies: 6
by pauldzinnjr » Sat Jul 07, 2012 7:05 pm

First post

Here is what I did for the 4th of July
:D

Last post

Good stuff :) you might also want to consider syringe metering as a simpler alternative.

6 Replies

2822 Views

Last post by jackssmirkingrevenge
Sat Jul 07, 2012 11:31 pm
Combustion won't happen

Last post by Aturt
Replies: 18
by Aturt » Tue Jun 19, 2012 4:40 pm
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First post

I recently made my first combustion spudgun. It's quite simple: It's fueled by a propane torch head (not direct injection) and the igniter is a...

Last post

Ok, I'll try that then.
18 Replies

9285 Views

Last post by Aturt
Thu Jul 05, 2012 1:33 am
PYSON

Last post by Petitlu
Replies: 26
by Petitlu » Thu Jun 28, 2012 1:04 pm
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First post

After putting in a Mix40 launched it was logical that I keep in my momentum and I'm getting the neurons to lay a ... Mix1!
bah, the chamber is made...

Last post

Thank you!
I also love the flames in the chamber and barrel!
A night firing will be excellent I think
26 Replies

11011 Views

Last post by Petitlu
Thu Jul 05, 2012 1:08 am
All-Poly

Last post by Petitlu
Replies: 76
by Petitlu » Mon May 28, 2012 2:52 pm
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First post

Here is my PAL wholly of polycarbonate!
Why do so transparent?
to film in slow motion combustions

before placing the barrel:

Last post

Here is my test database, it delivers a shock of 300V and 420uF, it can load other external capacitor and I can use it to ignition two-and...
76 Replies

30895 Views

Last post by Petitlu
Wed Jul 04, 2012 12:27 pm
gas operated reload system?

Last post by GalFisk
Replies: 12
by Bowman » Sat May 12, 2012 2:09 pm

First post

Well, I'm in the process of designing the last component to a semi-auto combustion rifle. The very part that would make it semi-auto, the reload...

Last post

Maybe I'm late to the party but here goes: For recoil- or gas-operated systems, you get a lot of force for a very limited time, which can be...

12 Replies

12788 Views

Last post by GalFisk
Wed Jul 04, 2012 5:13 am
Gas Phase Detonation Literature

Last post by GalFisk
Replies: 1
by DYI » Sun Jun 17, 2012 10:23 am

First post

There's a lot of it out there due to industrial process safety and PDE research, and it's quite relevant to combustion and hybrid guns. I recently...

Last post

The Gas Explosion handbook has a chapter on detionation, as well as lots of useful info on deflagration type explosions:

1 Replies

2239 Views

Last post by GalFisk
Wed Jul 04, 2012 4:11 am
Fueling A 6ft Cannon

Last post by rustlerdude987
Replies: 22
by rustlerdude987 » Sun Jun 24, 2012 4:35 pm
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Recently i have made a tennis ball cannon that is 6ft with a 201 ci chamber and mostly have been shooting it with stater fluid but i am looking for...

Last post

the chamber is a 3 x 24 so i think im just going to inject butane. I just put in a 60 mm chamber fan yesterday and it works wonders.
22 Replies

9278 Views

Last post by rustlerdude987
Sat Jun 30, 2012 3:18 pm
Fan Placement

Last post by jsefcik
Replies: 7
by rustlerdude987 » Wed Jun 27, 2012 8:55 pm

First post

I need some help deciding how to orient my fan fort the best performance, to have it laying on its side (seeing the side of the fan as you look in)...

Last post

the only problem is i have only 2 for where the fan would be placed to the clean-out cap. That is why i was thinking on placing it on its side....

7 Replies

5011 Views

Last post by jsefcik
Thu Jun 28, 2012 10:16 am
My First Tennis Ball Cannon

Last post by Spud Destruction
Replies: 3
by rustlerdude987 » Mon Jun 25, 2012 1:46 pm

First post

This is my first ever tennis ball cannon. Right now it is in the process of being converted from a spray and pray into a syringe injection. the...

Last post

If you put a vid up of distance i would love to see that. We don't have the room to try and go for distances.

But i will tell you at 150psi the...

3 Replies

5969 Views

Last post by Spud Destruction
Mon Jun 25, 2012 11:14 pm
New Failure Mode in Combustion Cannons

Last post by mark.f
Replies: 17
by DYI » Sat Jun 23, 2012 10:41 am
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I recently built a 1X combustion gun following the chamber layout of BigBang's Crusader (single ignition point at back of chamber, fan immediately...

Last post

Ouch buddy. Be thankful you weren't shoulder firing it (or holding it minigun style lower than it was).

Goddamn I hate burns, hope they gave you...
17 Replies

7454 Views

Last post by mark.f
Mon Jun 25, 2012 7:47 am

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