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...

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

1124972 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

358219 Views

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

Topics

Staged combustion chambers.

Last post by jackssmirkingrevenge
Replies: 38
by inonickname » Thu Sep 10, 2009 4:49 am
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I'm currently looking into how much muzzle velocity I can obtain from a 1x combustion launcher. Fuel will be hydrogen-oxygen or perhaps...

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Found this little clip related to the V-3, it's in German but some nice visuals and CGI.
38 Replies

9587 Views

Last post by jackssmirkingrevenge
Fri Nov 27, 2009 1:43 am
Research Cannon progress reports

Last post by jimmy101
Replies: 16
by boilingleadbath » Mon May 28, 2007 6:36 pm
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As you may know, I plan on doing a goodly number of spudgun tests this summer.

There are multiple reasons I created this thread:
1) To document my...

Last post

laziness

piezo in the chamber apparently shattered

can no longer get the breech open, or the barrel off, since they had to be cranked in place very...
16 Replies

6134 Views

Last post by jimmy101
Wed Nov 25, 2009 11:55 am
Propane Combustion and Tank sizes

Last post by jimmy101
Replies: 17
by broken_system » Mon Nov 16, 2009 11:20 am
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Hey guys, first time on the forum! I just had some questions maybe someone can help me out with. I am working on a design for a semi-automatic...

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Like tech said. Nice theory and perhaps fun to fiddle with but probably not going to work.

Pulse jets and the like work this way but they operate at...
17 Replies

5863 Views

Last post by jimmy101
Wed Nov 25, 2009 11:50 am
Amateur question...

Last post by psycix
Replies: 10
by EternityTransfer » Mon Nov 23, 2009 1:07 pm

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Hello, I am back, and I am finally going to complete my advanced combustion that I have been working on for the last... well... forever, really......

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Most people here enjoy designing cannons more then shooting them. :)
Designing/theories > building > shooting.

Have fun!
If you stumble upon any...

10 Replies

4437 Views

Last post by psycix
Tue Nov 24, 2009 2:14 pm
My first gun!

Last post by Chase!
Replies: 5
by Chase! » Sun Nov 22, 2009 1:02 am

First post

Over the summer, i realized that a steady routine of eating ramen and playing Halo tends to get boring. so me and my Bros decided to make a potato...

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You wouldn't need a hacksaw man. The valve is connected to a male screw on adapter so i can just unscrew it and put it in. I've working on setting...

5 Replies

5978 Views

Last post by Chase!
Mon Nov 23, 2009 8:03 pm
ultimatespudgun's BL-520 VADER Edition

Last post by Moonbogg
Replies: 9
by striker79 » Thu Nov 19, 2009 11:38 pm

First post

So, i just recieved the BL-520 VADER Edition spudgun for my birthday and i think its the best present i've got in a long time. The VADER look is that...

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That thing is sure to be the envy of all who see you use it. It just doesn't get any better than that. Congratulations on a sickass cannon and have...

9 Replies

5429 Views

Last post by Moonbogg
Fri Nov 20, 2009 6:57 pm
no boom

Last post by jimmy101
Replies: 7
by Stumpy » Wed Nov 18, 2009 4:54 pm

First post

Built my first propane cannon, no boom. Made a bigger ignition chamber thinking it needed more air. Still no boom. Put a few items in to mix the...

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I have the syringes and fans on hand, I will try to hide out in the workshop and get er done today while the boss isnt watching. The metering systems...

7 Replies

3177 Views

Last post by jimmy101
Fri Nov 20, 2009 2:32 pm
Rifling RPM Question

Last post by Ragnarok
Replies: 5
by Solar » Thu Nov 19, 2009 5:19 am

First post

How many turns per second makes for good spin stabilization once the round is airborne? I thought I saw a thread about this recently, but did not see...

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Not that simultaneously... :roll:

5 Replies

4523 Views

Last post by Ragnarok
Fri Nov 20, 2009 8:17 am
Sparker not working.

Last post by EvilFish
Replies: 6
by EvilFish » Wed Nov 11, 2009 1:52 am

First post

Recently I have made a simple combustion cannon, for which the ignition seems to be not working correctly. as the ignition, I used a simple bendy...

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finally got around to opening it up. all the plastic stuff around the wires had melted off, leaving the wires touching. I'm probably going to see if...

6 Replies

2597 Views

Last post by EvilFish
Tue Nov 17, 2009 4:27 am
The Hater Cannon :: My First Spud Gun

Last post by jrrdw
Replies: 65
by adrak » Wed Aug 12, 2009 11:23 pm
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After my friend Zach introduced me to the magical world of spud guns I immediately drafted up some designs. After he reviewed them we decided to...

Last post

OK you guys flamed this up enough, if the auther want's to make any corrections it should be done promptly if not no point in carring this out into a...
65 Replies

25019 Views

Last post by jrrdw
Sun Nov 15, 2009 3:16 pm
New Member-Simple Cannons

Last post by grock
Replies: 1
by Greenracer909 » Fri Nov 13, 2009 12:18 am

First post

I just stumbled across the site and figured i'd share my simple tater guns :)
I built the larger one first about 3 years ago when i was 16. 4...

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nice, clean guns. for tennis ball guns, something as simple as a 4 foot long under/over sprinkler valve launcher will throw a TB at least a hundred...

1 Replies

2072 Views

Last post by grock
Fri Nov 13, 2009 12:50 am
Insulation?

Last post by tauschung
Replies: 3
by tauschung » Thu Nov 12, 2009 10:15 am

First post

When you put your screws in for the fan or sparkers, are you insulating or reinforcing the screws?

I'm thinking about epoxying the screws in place....

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Thanks. I am using a sparker like this one(below). It's a real pain to get in it's housing. But, reliable.

3 Replies

2738 Views

Last post by tauschung
Thu Nov 12, 2009 3:43 pm
Paslode Fuel Cells

Last post by Ragnarok
Replies: 6
by kenbo0422 » Wed Nov 11, 2009 9:49 am

First post

Has anyone seen and/or used these to power a cannon? From one page I read that it is a propane/butane/lp gas combination in a nice small package....

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also, only fill to about 34% of the volume, otherwise, it will build enormous pressure.
That's based on CO2, not LPG. You can't apply numbers for...

6 Replies

7924 Views

Last post by Ragnarok
Thu Nov 12, 2009 11:19 am
Bl-520 stage 2 + extra

Last post by Moonbogg
Replies: 6
by grock » Sun Aug 23, 2009 2:02 am

First post

a little while ago, i felt like upgrading my spray n play BL-520, because the piezo ignitor wasn't really very comfortable the way i had it set up,...

Last post

Thats it. I'm attaching a samurai sword to the Venom.

6 Replies

6669 Views

Last post by Moonbogg
Tue Nov 10, 2009 1:04 am
Which on/off switch can I use?

Last post by theBOOM
Replies: 2
by VirusX » Mon Nov 09, 2009 1:29 pm

First post

Hey,

I'm planning my new, second spud gun with propane tank, fan, etc...

I have got a little question about the fan and its power supply:

So I'll...

Last post

Hmm actually the batteries wont be going for the switch they would be connected to the fan intself... the switch would also have to be connected with...

2 Replies

2022 Views

Last post by theBOOM
Mon Nov 09, 2009 4:14 pm
midsized Combustion Fueling

Last post by jimmy101
Replies: 11
by Lockednloaded » Fri Nov 06, 2009 6:00 pm

First post

Combustions can be fueled by many things, but with out a metering system consistency is hard. I dont have the money for propane metering system, so i...

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I have read many forums which say they are the worst fuel, and anyway i don't like their stick residue.

actually, if you use static guard, you get...

11 Replies

3775 Views

Last post by jimmy101
Sun Nov 08, 2009 6:15 pm
Sureshot ML-420E spray and shoot

Last post by jackssmirkingrevenge
Replies: 16
by jagerbond » Thu Sep 03, 2009 12:06 am
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Entry level combustion per multitudes of requests... Loads of fun, a camp model go anywhere. Holds and shoots like a regular firearm. Potato, 1/2...

Last post

LOL@ The ancient sounding drum for the intro HAHA!

I think the Benny Hill loading procedure is more lolworthy :)
16 Replies

6627 Views

Last post by jackssmirkingrevenge
Sat Nov 07, 2009 12:05 pm
CDI Ignition Box??

Last post by jmadden91
Replies: 5
by jmadden91 » Thu Nov 05, 2009 9:22 am

First post

Hey guys im completely in the dark here, just wondering if something like this

would work in a similar way to launch potato's ignition circuit?...

Last post

Awesome thanks for the help guys, knowledgeable as ever Tech. Stunguns are out cause im in Aus jrrdw. Ill just stick to the humble electronic bbq...

5 Replies

2182 Views

Last post by jmadden91
Thu Nov 05, 2009 7:11 pm
My newest cannon fail... Any help out there?

Last post by jaythedogg
Replies: 21
by jaythedogg » Mon Sep 28, 2009 11:03 pm
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Here's the vid I made, any suggestions would be greatly appreciated.

Only thing I can think of is that maybe I need to move my two leads to the...

Last post

Short answer, too easy. :)
21 Replies

9180 Views

Last post by jaythedogg
Tue Nov 03, 2009 7:02 pm
Old school tin-can cannon

Last post by kenbo0422
Replies: 41
by starman » Thu Apr 24, 2008 2:29 am
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OK guys, here's a little historical perspective for ya.

Back in 1971, when I was in the 8th grade, a guy whose name I don't even remember, brought a...

Last post

:D

Yup. The old drink cans were soldered on top and bottom. We made one that used 9 cans and shot a tennis ball down the street. We never recovered...
41 Replies

52697 Views

Last post by kenbo0422
Tue Nov 03, 2009 10:24 am
cb ratio

Last post by SpudBlaster15
Replies: 24
by 91sport_tn » Mon Oct 12, 2009 2:58 pm
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I have 2 feet of 3inch pvc for my chamber, and 2 feet of 2inch pvc for my barrel, about how much chamber should I cut off to make it fire efficiently?

Last post

Lorem ipsum dolor sit amet, consectetur adipiscing elit. Cras nec placerat erat. Vivamus dapibus egestas nunc, at eleifend neque. Suspendisse...
24 Replies

6490 Views

Last post by SpudBlaster15
Tue Nov 03, 2009 12:36 am
PVC-Caps keep bursting?

Last post by VirusX
Replies: 16
by VirusX » Tue Oct 27, 2009 1:25 pm
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Hi,

Since wie took a smaller barrel for our spud gun, our caps are bursting very often.

This is the smaller barrel (the right one) :

And here...

Last post

Hey, thanks for translation, MRR and the picture Technian ;)

We don't have female adaptors in our building stores, so I'll build a container like...
16 Replies

6009 Views

Last post by VirusX
Sat Oct 31, 2009 10:19 am
Propane question

Last post by jackssmirkingrevenge
Replies: 9
by mew239 » Sun Oct 18, 2009 12:15 am

First post

I made my first combustion cannon and the chamber is 4 in diameter and 2 feet long made from ABS piping. I am going to add the propane metering to...

Last post

Even though you are a mechanical engineer and really do know what you are doing, it's still really obnoxious.

You're not being fair, Mr Hall is a...

9 Replies

3462 Views

Last post by jackssmirkingrevenge
Thu Oct 29, 2009 2:21 am
Fuel Type?

Last post by MrCrowley
Replies: 39
by rcman50166 » Sat Jan 26, 2008 12:19 pm
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What is the best fuel type to use in a combusiton cannon. By asking this question I want to make a master list for this site for all members to use....

Last post

In terms of cost Vs ease of use Vs availability Vs performance, Propane is without a doubt the best spudgun fuel.
In NZ, MAPP and Propane are the...
39 Replies

11053 Views

Last post by MrCrowley
Tue Oct 27, 2009 4:38 am
Distance

Last post by Simple_Man66
Replies: 6
by Simple_Man66 » Sat Oct 24, 2009 10:46 am

First post

Hi All

Just joined. Been reading for a while now.
I was wondering aprox distance I should get with my cannon?
metered propane,3in X 24in chamber...

Last post

Thanks for the input Guys.

I changed my spark source and WOW!!!!!!!
Guess I had a weak sparker?????

Thanks again

6 Replies

2042 Views

Last post by Simple_Man66
Sat Oct 24, 2009 1:22 pm

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