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6 flame fronts are better than 2 - Triple ignition.

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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6 flame fronts are better than 2 - Triple ignition.

Unread postAuthor: SpudBlaster15 » Sun Oct 29, 2006 12:43 am

Triple arc ignition with the cheapest long nosed lighter I could find, who would have thought... The gun also has a detachable barrel joint, and a chamber fan.

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After getting the spark gaps set properly (approximately 1/8") I havent had it missfire yet. Thats one good piezo.
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Unread postAuthor: killagorrila99 » Sun Oct 29, 2006 12:50 am

Looks alright, I guess.
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Unread postAuthor: SpudStuff » Sun Oct 29, 2006 1:03 am

PAINT IT!

Then it will look nice. But good gob.
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Unread postAuthor: killagorrila99 » Sun Oct 29, 2006 1:13 am

I dont think theres a paint that sticks to abs...
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Unread postAuthor: SquishY » Sun Oct 29, 2006 1:26 am

That would be why you scuff the surface with a brillo pad to give the paint something to stick to.
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Unread postAuthor: SpudBlaster15 » Sun Oct 29, 2006 1:28 am

I might paint it, I might not, I think the duct tape I wrapped around it to protect all of the connections and wires looks just fine. :P
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Unread postAuthor: experament_u2 » Sun Oct 29, 2006 1:50 am

u just keep adding to that thing dont u
i like it and ye u should just wrap it in duck tape to keep it all nice and not fiddly
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Unread postAuthor: SpudBlaster15 » Sun Oct 29, 2006 1:59 am

I can never stop modding/tinkering with anything, and thus my projects usually become quite advanced. While I wouldnt call this advanced yet, it certainly is a huge step above what it originally was.

Just for comparison, I did some projectile hang time tests. On a rather warm day with only one spark gap, I acheived projectile hang times of an average of 7 seconds. Using 3 sparks, on a cold day when the air was dense, my average hang times jumped to 12 seconds. Coupled with a 1:1 C:B ratio (as opposed to the orginal 1.5:1) and chamber fan, my hang times increased to 15 seconds. Quite good for a combustion I must say.
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Unread postAuthor: killagorrila99 » Sun Oct 29, 2006 4:43 am

OK again I have been proven wrong.
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Unread postAuthor: BC Pneumatics » Sun Nov 12, 2006 2:49 pm

Em, if the sparks are running up and down the length of the chambr, intuition says that performance will decrease...
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Unread postAuthor: SpudBlaster15 » Sun Nov 12, 2006 6:37 pm

It certainly doesnt decrease, but the marginal improvement is not worth the hassle. My new, larger gun uses a single spark placed near the rear of the chamber, which I have found to work just as well.
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Unread postAuthor: pyrogeek » Wed Nov 15, 2006 10:21 pm

What do you use for fuel?
A metered propane setup seems like the next obvious thing to add.
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Unread postAuthor: Dan003400 » Thu Dec 14, 2006 11:08 pm

Old skool that gun is total old skool and i like it because it is kool and has alot of wires showing on the back, wah tis that batterery pack looking thing on it it look like abunch of double a's ! lol, it is old skool
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Unread postAuthor: pvc » Fri Dec 15, 2006 9:39 pm

well its looks very complacated

what kind of fan did you use for it???
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Unread postAuthor: PVC Arsenal 17 » Fri Dec 15, 2006 10:18 pm

who's thinkin what I'm thinkin right now?
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