2nd cannon Duel Chamber

Boom! The classic potato gun harnesses the combustion of flammable vapor. Show us your combustion spud gun and discuss fuels, ratios, safety, ignition systems, tools, and more.
itwentboom
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Wed Mar 07, 2007 1:19 pm

This is my second cannon I have built. There are a couple of things i am waiting for, Camlocks for barrel, another valve,and regulators. This cannon has twin 24" 4" chambers. 100000 volt stun gun ignition,propane meter and duel fans. I have extended the wire harness for ignition and fan so i can fire from a distance away. Don't really know what will happen when i fire this. I won't be able to fire soon its snowing here today. Well i posted this to see what you think. I had nothing but good comments from you guys on my first and waiting to see what you think. Thanks for looking,and any suggestions will be appreciated.
itwentboom
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Wed Mar 07, 2007 1:23 pm

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Matheusilla
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Wed Mar 07, 2007 2:06 pm

Crazy cannon dude! The first thing I see though is the way yer barrel is mounted/supported. I would have supported it a lot better so as not to apply so much stress at the breech end. The dual metering system is nice; it should fuel it quite well. How long is yer barrel? You might be able to have it longer to take advantage of all that combustion chamber.

It's nice to see people experimenting.
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jjjd
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Wed Mar 07, 2007 3:29 pm

very nice, i want to do sumthin like that only a backpack gun, like the proton pack but with dual chambers, it would be so sweet. im just having troubly finding a 11/2" flexible hose to do it
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Velocity
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Wed Mar 07, 2007 4:55 pm

mcmaster part #5304K47; holds 150 PSI
iknowmy3tables
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Wed Mar 07, 2007 4:58 pm

Please put spacing between the picture so it doesn't distort the page, its really anoying, and don't double post

but in terms of this canon awesome job looks cool, I think a longer chamber is better, I hope you wisely attached the tanks with unions or threads then you can transform it into 2 portable guns
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joannaardway
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Wed Mar 07, 2007 5:06 pm

Holy F***! That is awesome!!!
+1,000,000 Kudos points for you.

Now put the goddamn line breaks in!
Novacastrian: How about use whatever the heck you can get your hands on?
frankrede: Well then I guess it won't matter when you decide to drink bleach because your out of kool-aid.
...I'm sorry, but that made my year.
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risto
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Wed Mar 07, 2007 6:03 pm

very clean, you invested a lot of time and money into this. how about some shots of the barrel and good call on giving yourself a remote detonation, just in case. kudos!
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Insomniac
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Thu Mar 08, 2007 12:14 am

Dude!
Awsome work yet again, you really know your stuff.

I love the dual metering pipes, you should be able to get some pretty interesting shots off with it (try filling one chamber with the perfect air/fuel mix, and make the other chamber too rich. Should still be powerful but give a nice big flame from the over fueled chamber)
I wonder how much deeper the ocean would be without sponges.
Right now I'm having amnesia and deja vu at the same time. I think I've forgotten this before.

Add me on msn!!! insomniac-55@hotmail.com
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experament-u2
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Thu Mar 08, 2007 4:53 am

excuse me for second while i go to the hospital cause that is a forking awsome gun

i cant wait to se it finished and a video of it shooting :lol:
itwentboom
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Thu Mar 08, 2007 1:31 pm

Thanks for all the praise it pushes me to build more stuff. I will post some video when i fire it. Look for my pneumatic that will be complete soon. Thanks Again for i could not build these cannon without all of you guy.
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Pete Zaria
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Thu Mar 08, 2007 2:40 pm

I really like this gun, and everything about it except the fixed barrel angle, and that you used screws for the electrodes, which works, but I prefer to avoid putting excess holes in the chamber (a spark strip accomplishes that quite well).
Very clean construction, well thought out, well planned, well built. Awesome launcher for your second one. Can't wait to see your third.

Try what Insomniac said, give one chamber a stoichiometric fuel/air mixture and give the other one, say, 2x the normal amount of gas. See if you get a giant muzzle flash or just a "WHUMP". Let us know.

Peace,
Pete Zaria.
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Hotwired
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Thu Mar 08, 2007 3:50 pm

With all that wiring and tubing it must be a good cannon :wink:

I've got to echo some of the others on the high fixed angle on the cannon though. Is it meant to be a mortar?
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zeigs spud
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Thu Mar 08, 2007 5:23 pm

holy mother...danm nice cannon! love the paint job on it too! good work man. i can't wait to see more of your cannons. :D
SpudBlaster15
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Thu Mar 08, 2007 6:36 pm

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Last edited by SpudBlaster15 on Wed Jul 14, 2021 1:30 pm, edited 1 time in total.
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