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

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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...

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great job how can i help the fourms
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Last post by quinn whitsitt
Fri Mar 01, 2024 10:52 am

Topics

Anything wrong with a 2" chamber?

Last post by sandman
Replies: 22
by Binder17 » Thu Jul 05, 2007 12:22 pm
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I have designed a spudgun that has a 2 X 6 chamber and .75 X 48 barrel. I will use metered fuel and fire with a bbq sparker. I not going to bother...

Last post

lol, in the first month that i was here with all the research that i did, i wrote a 5 page report on spudguns for school. It was the first time that...
22 Replies

5558 Views

Last post by sandman
Fri Jul 06, 2007 8:45 pm
two questions

Last post by gotbass7
Replies: 33
by gotbass7 » Mon Jul 02, 2007 11:07 pm
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first one isnt really a question, more of something asking for suggestions. well anyways, i was planning on buildinig a combustive gun that fires...

Last post

he told me hes not gonna do it anymore. sorry. lol.

but would paintball style loading work though? that would make a tightenough seal in a...
33 Replies

7314 Views

Last post by gotbass7
Fri Jul 06, 2007 8:04 pm
Basic combustion design.. Looks okay?

Last post by bigotry2
Replies: 18
by bigotry2 » Thu Jul 05, 2007 7:21 pm
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I bought some wrong PVC pipes when I was looking to build a pneumatic, too lazy to return them, so just making it into a semi-hybrid cannon. It's not...

Last post

Is there a way to chemically remove the gloss off the PVC?
18 Replies

5802 Views

Last post by bigotry2
Fri Jul 06, 2007 11:13 am
Butane Injection

Last post by Fnord
Replies: 7
by flamerz14 » Mon Jul 02, 2007 3:45 am

First post

I read a topic on injecting butane from a can using a syringe. I was wondering...:

1.How do I calculate the correct amount of fuel?
2.How can I...

Last post

Around 3.2%
You probably won't notice much difference between 3-4%, so dont worry too much.
It might help to measure the volume of your chamber by...

7 Replies

2433 Views

Last post by Fnord
Fri Jul 06, 2007 8:34 am
Chamber fan question.

Last post by Scotty
Replies: 37
by Jumpin Jehosaphat » Mon Jun 25, 2007 3:15 pm
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I'm planning on making a metered propane combustion, and I want to use a chamber fan.

The pictures of cannons with fans confuse me. Aren't the fans...

Last post

... I use M.E.K. in my Minis and Butane in my larger combustions.

Careful with MEK (methyl ethyl ketone) in a PVC gun. It will melt the PVC....
37 Replies

10801 Views

Last post by Scotty
Fri Jul 06, 2007 5:44 am
Best wireless ignition system ever

Last post by sk8er548
Replies: 21
by Spudgun on Crack » Sun Jun 24, 2007 10:51 pm
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I will be posting instructions on how to make the best ignition system!

Now this ignition system will allow you to make the most dangerous cannons...

Last post

try a mobile phone detinater its easier and cheaper
21 Replies

6765 Views

Last post by sk8er548
Fri Jul 06, 2007 3:26 am
Acrylic and Polycarbonate Chambers

Last post by dongfang
Replies: 17
by noname » Tue Jul 03, 2007 10:31 am
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First post

At the plastics store where I get all my cool stuff (including vortex block material), I've noticed some large acrylic and polycarbonate tubes. The...

Last post

Gepard, where do you stay?

> The problem isn't gluing it - it's buying the stuff over here. Costs a fortune compared to the states....

Seems we...
17 Replies

4278 Views

Last post by dongfang
Fri Jul 06, 2007 3:22 am
Using a fan

Last post by mtronic
Replies: 10
by miskaman » Mon Jul 02, 2007 11:36 pm

First post

I heard you can use a fan in a combustion chamber to help air it out after a shot. So when you actually are firing the gun, do you have to take the...

Last post

i went to my local electronics store and picked up a nice 12v fan that fits very tightly(after some taped edges, its wedged in super tight!!! no...

10 Replies

2795 Views

Last post by mtronic
Thu Jul 05, 2007 5:33 am
Firing Blanks

Last post by Scotty
Replies: 18
by Jumpin Jehosaphat » Tue Jul 03, 2007 6:26 pm
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I want to fire my combustion cannon without loading it so it is safe to use in a small area.
I was wondering if anyone who has done something similar...

Last post

Kewl, whatever floats your boat as they say!!

Peace
Scotty
18 Replies

6009 Views

Last post by Scotty
Thu Jul 05, 2007 5:15 am
new type of fuel

Last post by psycix
Replies: 10
by mike1010 » Fri Jun 29, 2007 12:49 pm

First post

what do you think i i used my airbrush to vaporize particles from say gasoline or some sort of alcohol then spray it in would it have a better effect...

Last post

gas > liquid vapor

Vapor will settle, stick and do other nasty things.
Using a gas like propane works good enough.

10 Replies

3093 Views

Last post by psycix
Wed Jul 04, 2007 3:48 pm
Combustion Cannon Query

Last post by Jumpin Jehosaphat
Replies: 3
by kozak » Wed Jul 04, 2007 5:35 am

First post

Hi, I'm new to the spud cannon game, and inspite of reading all the forums and sites I could find, I'm at a standstill.

My intention is to build two...

Last post

DWV ABS has failed on people in the past. I've never personally heard of pressure rated PVC failing on a combustion launcher.

If you do ever find a...

3 Replies

1553 Views

Last post by Jumpin Jehosaphat
Wed Jul 04, 2007 10:12 am
diesel engine injectors

Last post by psycix
Replies: 23
by TechnoMancer » Mon Jul 02, 2007 2:40 pm
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do you think you could use an injector from a diesel engine to inject as liquid fuel into the chamber and allow it to mix and evaporate enough to...

Last post

no i just like putting excamation marks on the end of sentences!!

WELL WHY NOT THEN ALSO TALK CAPS TO EXPRESS YOURSELF EVEN...
23 Replies

8571 Views

Last post by psycix
Wed Jul 04, 2007 3:08 am
Installing a fan

Last post by turbohacker
Replies: 2
by miskaman » Tue Jul 03, 2007 10:55 pm

First post

How should I install this fan that I want? I just want a real simple circut, you know, 2 wires, the fan, a switch, and a battery.

But I want the fan...

Last post

Or you could drill holes and fill with epoxy, however I like singularity's idea much better.

2 Replies

1142 Views

Last post by turbohacker
Wed Jul 04, 2007 12:39 am
Built 1st Gun, having problems

Last post by chaos
Replies: 21
by wanimal » Mon Jul 02, 2007 10:18 pm
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Ok, I just built my first gun, pics below. Before I added the propane today, I was using spray ether, but had problems. I would spray a half second,...

Last post

yer thats another way of calculating it, by the sound.... get your sis to shoot the gun and film it.

hey yer 1000posts....unfortunately number 1000...
21 Replies

5328 Views

Last post by chaos
Tue Jul 03, 2007 9:33 pm
tell me whats wrong with my gun

Last post by gotbass7
Replies: 15
by gotbass7 » Tue Jul 03, 2007 12:01 am
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i just made it out of stuff i had in the house, and i wanna know whats wrong with it before i shoot it so i can fix it ( or throw it away)...

Last post

that actually was the problem hold it. a way to solve it is if i built a wood holder that had the ignitor poking through it. that way, its not flimsy
15 Replies

4821 Views

Last post by gotbass7
Tue Jul 03, 2007 8:52 pm
Idea: Tesla Coil Ignition

Last post by Hotwired
Replies: 23
by Torch » Tue Sep 05, 2006 1:54 pm
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I was looking at some lighting photos and I came up with this: What if you could build a ultra mini tesla coil and stick it in a 4'' combustion...

Last post

Hmph.

It breaks my rules of practicality.

I like it when things are used creatively and economically :)
23 Replies

6049 Views

Last post by Hotwired
Tue Jul 03, 2007 5:16 am
Monster Combustion

Last post by TechnoMancer
Replies: 13
by Meiso2005 » Thu Jun 14, 2007 7:04 am

First post

Hey everyone! I have ready through the forums and first would like to thank you all for the information you have shared!

I recently built my first...

Last post

if you want big why not build a huge coilgun it would be very funny watching the target being totally destroyed as the slug hits it!!

13 Replies

4747 Views

Last post by TechnoMancer
Tue Jul 03, 2007 12:38 am
First gun not launching

Last post by motowater
Replies: 7
by motowater » Mon Jul 02, 2007 11:15 pm

First post

I just went out to the store today and bought all the parts for a spud gun. I am using axe sprayed in the back of the combustion chamber as the fuel....

Last post

what do you guys recommend I use as a fuel for this setup? Is axe good, I havent tried hairspray, is it any better?

7 Replies

2298 Views

Last post by motowater
Tue Jul 03, 2007 12:34 am
chamber fan blockage

Last post by hi
Replies: 5
by wanimal » Mon Jul 02, 2007 11:22 pm

First post

I want to add a chamber fan to my gun, and seal the back plate on, but, doest the back plate have to be off when inserting a projectile, so the air...

Last post

If he has a chamber fan with propane as fuel then he can vent it through the barrel, right?

no, not really. where would it vent to? exactly, it...

5 Replies

1983 Views

Last post by hi
Mon Jul 02, 2007 11:37 pm
Idea for 9V Battery Ignition System

Last post by TechnoMancer
Replies: 26
by appleorchard » Wed Jun 13, 2007 8:30 am
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I saw a vid last week that showed how a 9v battery could ignite steel wool.

Got me to think that such a combo would be a reliable way to fire off my...

Last post

yes use a car ignition coil with a sparkplug!!!!!! or for a huge gun use a largish tesla coil with the end of the secondary in the chamber should...
26 Replies

13370 Views

Last post by TechnoMancer
Mon Jul 02, 2007 4:50 pm
Ignition source

Last post by TechnoMancer
Replies: 6
by Spedy » Sun Jun 24, 2007 7:46 pm

First post

I'm looking for a reliable ignition source. AdvancedSpuds recommends lantern lighters but I can;t find a suply that isn't on-line only. Is there any...

Last post

all you need is a high power transistor or power MOSFET!!
you can power the flyback with a 555 timer and a power MOSFET.
i still want to find a...

6 Replies

2560 Views

Last post by TechnoMancer
Mon Jul 02, 2007 4:39 pm
Propane Meter Pipe Length

Last post by Ashwin
Replies: 2
by Ashwin » Mon Jul 02, 2007 3:43 pm

First post

if i have a a 4 inch by 16 inch chamber how long and wide will my metering pipe have to be

Last post

thanks i just needed a little help

2 Replies

953 Views

Last post by Ashwin
Mon Jul 02, 2007 4:04 pm
Wiring for Stun Gun Ignition

Last post by TechnoMancer
Replies: 19
by ArticWolf » Sat Apr 28, 2007 7:16 am
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First off I did search for my answer but got good answer's, but don't know if they will work for my configuration. What I was wondering was this, I...

Last post

there are no tesla coils in a television, there are flyback transformers slightly different but similar principle. second it does not matter how...
19 Replies

8662 Views

Last post by TechnoMancer
Mon Jul 02, 2007 5:16 am
Help with syringe, propane

Last post by jackssmirkingrevenge
Replies: 8
by jon_89 » Fri Jun 29, 2007 10:16 pm

First post

i have read the wiki and searched the forums but i can not find anything on propane with a syringe. i have thought about it now for several days, so...

Last post

have a look here and here :D

8 Replies

3113 Views

Last post by jackssmirkingrevenge
Mon Jul 02, 2007 2:56 am
small propane meter?

Last post by noname
Replies: 3
by subterranean » Mon Jun 25, 2007 12:21 pm

First post

currently i am interested in building a propane meter for a small combustion i built awhile ago. The cannon's chamber is made of 1 1/2 sch 40 pvc,...

Last post

I use the gate valve from the propane torch as a regulator. I open verrrrry slowly, and let the pressure creep up about 1 psi per second. When it's...

3 Replies

1330 Views

Last post by noname
Sat Jun 30, 2007 8:00 pm

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