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

635856 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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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

213943 Views

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

Topics

My $10 Cannon

Last post by jaythedogg
Replies: 15
by jaythedogg » Sun Jun 07, 2009 1:51 am
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First post

$1: El Cheapo grill lighter
$2: Epoxy (not fast drying!)
$3: 5 gallon water jug
$4: 4 foot length of 1.5 ID Schd-40 PVC
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$10 + tax

My...

Last post

The reason I would pressure test it to such a degree would be to see if it would withstand low volume propane combustion firings.

Perhaps if you...
15 Replies

5775 Views

Last post by jaythedogg
Sun Jun 07, 2009 11:05 pm
Zeig's Ghetto Sniper

Last post by inonickname
Replies: 23
by zeigs spud » Sun Jan 21, 2007 11:57 pm
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well here is my ghetto sniper. it's a coke 2 liter and some copper pipe.

the bottle go bent from when i was widening the opening for the barrel and...

Last post

Mike, you've bumped MANY old topics. This was 2+ years old. Please stop!
23 Replies

11899 Views

Last post by inonickname
Sun Jun 07, 2009 1:12 am
Outtakontroll's cannons

Last post by theBOOM
Replies: 13
by outtakontroll » Wed Apr 15, 2009 1:49 pm

First post

Ok here is my next cannon
This is my version of the green hornet cannon I found on this link here
I was in search of the ultimate handle for this...

Last post

Could you maybe type a rough outline of your handle?? I really like the design of the handle on this gun... very nice work with the hose it looks...

13 Replies

6210 Views

Last post by theBOOM
Fri Jun 05, 2009 1:43 pm
My First Combustion Spud Gun!

Last post by mark.f
Replies: 3
by taterflames22 » Thu Jun 04, 2009 5:54 pm

First post

This is my first combustion spud gun. It’s put together with schedule 40 PVC. The ignition source is a 900,000V stun gun. The short extension cord is...

Last post

Just download the picture from your camera, resize it to 1280x960 or something like that, and then upload it.

3 Replies

2222 Views

Last post by mark.f
Fri Jun 05, 2009 6:19 am
S.R.B.M. idea

Last post by Technician1002
Replies: 1
by deathbyDWV » Thu Jun 04, 2009 2:00 pm

First post

In this case S.R.B.M. doesn't stand for short range ballistic missile, but it stands for soda rocket bottle mortar. I was going to take an idea from...

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In this case S.R.B.M. doesn't stand for short range ballistic missile, but it stands for soda rocket bottle mortar. I was going to take an idea from...

1 Replies

1095 Views

Last post by Technician1002
Thu Jun 04, 2009 2:14 pm
BL-520 Stage One

Last post by grock
Replies: 6
by grock » Tue Jun 02, 2009 2:31 am

First post

my awesome uncle was attending an ultimatespudgun demo put on by the owner Mike, and bought me a Bl-520 starter kit as a end of school gift. so i...

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Glad to see you got it put together. When can we expect damage videos?

thanks for making such a great kit, i should have damage videos this weekend...

6 Replies

2765 Views

Last post by grock
Thu Jun 04, 2009 2:12 pm
The Black Death

Last post by Moonbogg
Replies: 5
by mikemurph » Thu May 14, 2009 8:34 pm

First post

This is another one of my minis. I know a lot of people on this site have been telling me to spend more time on a gun to make it more clean and...

Last post

Its a sch80 Gatorade bottle.

5 Replies

3122 Views

Last post by Moonbogg
Thu Jun 04, 2009 1:13 am
Ideal Combustion Chamber Size

Last post by jimmy101
Replies: 2
by Woody » Wed Jun 03, 2009 3:36 pm

First post

Well I have to scratch a pvc combustion I just made and make a new one. I was wondering what the ideal ratio of size pipe to length I should use. The...

Last post

4 pvc, 18 long so 1:4.5 ratio The ideal ratio is 1:1, the pipe length should equal the pipe diameter. (I am assuming that the question you asked is...

2 Replies

2169 Views

Last post by jimmy101
Wed Jun 03, 2009 4:41 pm
Long Pistol

Last post by Carlman
Replies: 17
by jor2daje » Sat Oct 18, 2008 10:39 pm
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This is my first post and my first attempt at a combustion gun. I had a bbq sparker and I already have a large pneumatic so I i decided to try a...

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For the poll i say yes because it is half decent. BUT only if you're calling it a mini combustion!!! :D Overall very nice gun. I like how you...
17 Replies

8463 Views

Last post by Carlman
Wed Jun 03, 2009 6:53 am
Clean out cap problems

Last post by Woody
Replies: 7
by Woody » Mon Jun 01, 2009 5:17 pm

First post

In my spud gun I noticed that gas escapes fairly easily out through the threads of my clean out cap. Also, the threads on the cap get burnt.

I was...

Last post

ok sounds good, thanks

7 Replies

2963 Views

Last post by Woody
Tue Jun 02, 2009 1:50 pm
Marx Generator

Last post by rp181
Replies: 3
by mikemurph » Mon Jun 01, 2009 5:09 pm

First post

I've seen a couple of different ignition systems on this site, but I recently saw one that I think could be better than all of them. This system has...

Last post

these need another high voltage source to power them, pointless. I got the stuff to make a large one (2' sparks atleast), but i am going for a...

3 Replies

1864 Views

Last post by rp181
Mon Jun 01, 2009 8:55 pm
Solid fuel revisit

Last post by LGM
Replies: 17
by inonickname » Wed May 27, 2009 3:59 am
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Well, while searching the nets I eventually found myself watching videos of silly kids trying to make flour bombs. I was thinking of substitute...

Last post

I started a thread on solid fuels over at APC a while ago with the intent on making a charcoal powder fueled cannon from steel tube. The exact design...
17 Replies

5610 Views

Last post by LGM
Mon Jun 01, 2009 5:54 pm
Question about combustion cannon designs

Last post by Moonbogg
Replies: 9
by geniusbomberman » Fri May 29, 2009 8:14 am

First post

I'm planning to make a combustion cannon, and all of the designs on the internet has the fuel (hairspray or deodorant) load from the back. Is there...

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Moonbogg ....
I suspect the biggest boost in performance came from the fan. Mixing is that important . Proper fuel ratio and air movement during...

9 Replies

2375 Views

Last post by Moonbogg
Fri May 29, 2009 4:38 pm
Just joined + My propane WIP

Last post by chenslee
Replies: 79
by chenslee » Thu Jan 29, 2009 2:57 pm
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First post

I knew that there were people like me building these things out there. A few pics of what I refer to as the cocker .

2.5 bore air cylinder...

Last post

I agree. A fan probably would help, but this setup just doesn't lend itself to a fan.

First of all, I'm fueling when the bolt is back. Running the...
79 Replies

22950 Views

Last post by chenslee
Fri May 29, 2009 4:11 pm
series circuit or spark gap ignition

Last post by Moonbogg
Replies: 11
by jct0064 » Thu May 28, 2009 2:16 pm

First post

I wanted to know if it is just opinion or if one is superior (series circuit or spark gap ignition).

Last post

With screws you need two holes per gap. And, with screws you need to get the pairs of holes lined up pretty well, which isn't always as easy as it...

11 Replies

3179 Views

Last post by Moonbogg
Fri May 29, 2009 2:40 pm
Multiple barrel cannon with reroutable chamber/ barrel paths

Last post by jimmy101
Replies: 8
by geniusbomberman » Thu May 28, 2009 10:21 pm

First post

I am trying to design a new spud gun, it will have three ignition chambers and three barrels. However, this is not three spud guns glued, taped, or...

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P.S. Steal my design without my permission or saying it is my design and you owe me a design, a gun, some spuds and a rifled barrel.
I wouldn't...

8 Replies

3022 Views

Last post by jimmy101
Fri May 29, 2009 1:29 pm
wont fire..need help

Last post by brettdotcom14
Replies: 12
by brettdotcom14 » Tue May 26, 2009 7:53 pm

First post

i thought i was doing everything right.

18 chamber 4 diameter
bbq sparkier with spark strip 3 sparks
80mm fan
propane injection @ 30psi

it sparks...

Last post

oh ok thanks

well it was just a fluke darn!

anyway there was a problem with my fan switch so i took everything apart so i cant test much more.

but...

12 Replies

4687 Views

Last post by brettdotcom14
Thu May 28, 2009 2:56 pm
Advanced mini combustion gun

Last post by mikemurph
Replies: 7
by mikemurph » Sat May 23, 2009 5:21 pm

First post

This is my newest cannon, its a little bit ghetto, but I think its well made. It has an onboard fan and butane tank and a suppressor. I shoot...

Last post

....bump....
...bump...
..bump..
.bump.

7 Replies

3472 Views

Last post by mikemurph
Wed May 27, 2009 3:19 pm
Mapp Gas pressure

Last post by daniel.loechle
Replies: 5
by daniel.loechle » Wed May 27, 2009 6:34 am

First post

Hi, i would like how much pressure my pvc pipes and fittings schooled be able to handle, if i like to use Map gas.

Last post

Thanks for that nice reply, 200 psi is about 15 bar. i hope i will be able to find something like that in large dimensions.

5 Replies

3343 Views

Last post by daniel.loechle
Wed May 27, 2009 2:06 pm
Milk Bottle chamber

Last post by inonickname
Replies: 12
by qwerty » Sun May 24, 2009 2:01 am

First post

Do you think that one of those 6 pint milk bottles could hold the pressure for a simple deo combustion?

Last post

It's the corners which are weak, not the sides.

When pressure is applied, the two faces are pulling away fom each other where they meet, and so the...

12 Replies

3713 Views

Last post by inonickname
Mon May 25, 2009 3:49 am
Marble Gun

Last post by jackssmirkingrevenge
Replies: 9
by mikemurph » Fri May 22, 2009 7:52 pm

First post

This is my new marble gun, it's powered by about 9 seconds of butane. It shoots metal ball bearings very fast. I made it in about 20 minutes, not...

Last post

Impressive performance for a combustion and original chamber, I like ;)

9 Replies

4918 Views

Last post by jackssmirkingrevenge
Sat May 23, 2009 11:12 pm
It just went BOOM!!!

Last post by Carlman
Replies: 9
by taterflames22 » Wed May 20, 2009 5:57 am

First post

Who's got a good story about there gun blowing up during firing. I know i do. I was building my first combustion gun a couple weeks ago and when i...

Last post

For reference, just in case this thread gets smashed, here is the original Carlman referred to earlier.

Thanks hubb, couldnt bebothered wasting...

9 Replies

3114 Views

Last post by Carlman
Wed May 20, 2009 1:02 pm
ignition system

Last post by jimmy101
Replies: 8
by jct0064 » Sat May 16, 2009 1:44 pm

First post

I am going to put a ignition with three spark gaps, and was wondering if a 100 kv stun gun would be enough. Also i already have a piezoelectric...

Last post

The output voltage is a little bit more than the voltage needed to jump the fixed spark gap on the stungun.

So about 20-40Kv
And, the actual output...

8 Replies

2809 Views

Last post by jimmy101
Mon May 18, 2009 10:25 am
Question About My Cannons Performance

Last post by Explosive
Replies: 3
by Explosive » Sun May 17, 2009 12:00 pm

First post

Hey guys, I'm new here and this is my first thread/post. So I figure I'll start by telling you my past with potato cannons then post my question, my...

Last post

Yea, I had a feeling I was flooding it at first, but I'm not sure, I know a fan would help, my friend ended up putting one into his second gun, the...

3 Replies

1766 Views

Last post by Explosive
Sun May 17, 2009 2:19 pm
Spark plugs, screws, and metal made combustion cannons

Last post by Biopyro
Replies: 1
by nightshot » Sun May 17, 2009 1:52 pm

First post

Is sparks plugs (the same used on combustion engines) better than using screws to ignite propane or MAPP, and what should I use with the spark plugs,...

Last post

Nope, there is no difference between spark plugs and anything else. So long as they make a spark travel through the air it's fine.

Yes, there is a...

1 Replies

1686 Views

Last post by Biopyro
Sun May 17, 2009 2:03 pm

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