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New advanced cannon

Built a combustion cannon? Then post it here! This section is for completed, finished cannons that you have built. Please include pictures and information.
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New advanced cannon

Unread postAuthor: superspud09 » Wed Oct 13, 2010 8:17 am

Hello, this is my first advanced combustion cannon. Starting this project i really did not think that a little fan, multiple sparks, and some metered propane would make much of a difference over my old spray and pray gun but man was i wrong lol. Not sure of what kind of speed im getting but potatos go through 1/2 osb like its butter.

here are some spec:
- 4" chamber 24" long
-2"x72" barrel
-dual spark from electric grill ignitor
-computer chamber fan
-45 psi in meter seems to be magic number

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Last edited by superspud09 on Thu Oct 14, 2010 9:07 am, edited 2 times in total.
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Unread postAuthor: jrrdw » Wed Oct 13, 2010 8:22 am

Question: Where is the fuel port on the cannon?
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Unread postAuthor: superspud09 » Wed Oct 13, 2010 8:32 am

It is on the back of the chamber you cant see it in the picture. Fuel port is a 90 degree elbow with a female quick connect
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Unread postAuthor: jrrdw » Wed Oct 13, 2010 9:33 am

I was wondering... Clean looking build. Any chances of a video?
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Unread postAuthor: SpudBlaster15 » Wed Oct 13, 2010 9:40 am

Nice looking launcher, you might want to consider a barrel support though.
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Unread postAuthor: tauschung » Wed Oct 13, 2010 11:53 am

Nice. I have a similar launcher..but mine is in-line.

What are the specs on your metering device (syringe and fueling device)? I have some problems with my regulator...was wondering if you had better success?
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Unread postAuthor: superspud09 » Wed Oct 13, 2010 12:20 pm

Yupp ill try to get a video soon and yea SpudBlaster a barrel support probably is a good idea.


tauschung wrote:What are the specs on your metering device (syringe and fueling device)? I have some problems with my regulator...was wondering if you had better success?

Ill try to get up pics of fueling device later but my syringe is a 12" sch80 nipple(1/2 pipe) threaded into a sch80 tee then a 2 inch brass nipple then my ball valve. its kinda big but 45 psi is all i need for my 275+ cubic inch chamber

fueling setup
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Unread postAuthor: jigglehippo47 » Sun Jan 02, 2011 4:12 pm

can you tell me what parts are needed for the fueling system i am working on a propane gun with the same design but breach loading and with a sliding barrel support and the only problems are with the fueling on account of the price i already have 2 other guns but they are both spray and prey.
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Unread postAuthor: clemsonguy1125 » Sun Jan 02, 2011 6:34 pm

Nice cannon, only thing I would add is a barrel support, just hose clamp a piece or wood or a pair or couplers in between the chamber and barrel.
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Unread postAuthor: metalmeltr » Sun Jan 02, 2011 7:38 pm

Whoo hoo no DWV!
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Unread postAuthor: superspud09 » Sun Jan 02, 2011 8:46 pm

Thanks for all the comments guys I couldn't have done it without all the help from this forum, I plan on putting a barrel support just trying to think of the best way to do so.
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