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Spare parts Copper Combust

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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Spare parts Copper Combust

Unread postAuthor: tigerblues28 » Tue Dec 17, 2013 11:56 pm

I saw the Ghetto combustion cannon contest start up in October/November so I picked up a lighter and gave it a go. Turns out, after the JB Weld cured.. I suck at making combustion cannons, which I'm okay with because I never entended to make one ever.. So today, after looking at all the hybrids, I went down stairs to take the spark igniter from my failed attempt, and thought, "Alright, ill give it one last go." Turns out. Its a piece of junk.. but it shot. :D

I didn't have a barrel on it so the paper-spitball shot across the room and left a blob on the door, so I molded a chunk of 1/2in PVC to the 3/4in to 1/2in reducer to the 1/2in copper barrel so I didn't need to epoxy anything, but I later secured it with a bolt and wing-nuts/washers. It shot a dart 5 yards into my dartboard and penetrated about 1/4inch.

Maybe with a nerf dart or something I should be able to shoot it a bit farther. I wont be doing any add ons or anything. Just something to show the family I can make something that goes "Thump!" and has a good muzzle flash.

Igniter: BBQ Lighter spark igniter removed from the plastic case and shortened. I epoxyed it into a copper threaded female adapter. I think it works well and is safe :lol:
Chamber: 14 inches of 1in copper with a 3/4th inch threaded male copper adapter epoxyed on one end, and a 3/4th inch to 1/2 inch reducer.
Barrel: About 8-10 inches of 1/2in copper.
Hope you guys like it.. Alittle!
  • 1

Spark Gap
SPCC1.jpg (5.49 KiB) Viewed 833 times
Spark "Plug"
SPCC2.jpg (5.88 KiB) Viewed 833 times
Where the "Plug" screws in
SPCC3.jpg (7.56 KiB) Viewed 833 times
My ghetto safety coupler
SPCC4.jpg (8.89 KiB) Viewed 833 times
26 in.
SPCC5.jpg (7.54 KiB) Viewed 833 times
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Re: Spare parts Copper Combust

Unread postAuthor: PeteS » Wed Dec 18, 2013 7:00 pm

Looks like a fun project.
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My wife upon seeing my latest hybrid and hearing an explanation of it:
"That really isn't a potato cannon anymore, is it?"
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Re: Spare parts Copper Combust

Unread postAuthor: jackssmirkingrevenge » Wed Dec 18, 2013 7:52 pm

Shame it's not a hybrid :)
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hectmarr wrote:You have to make many weapons, because this field is long and short life
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