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Post questions and info about combustion (flammable vapor) powered cannons here. This includes discussion about fuels, ratios, ignition systems, safety, and anything else relevant.
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Unread postAuthor: pneumaticcannons » Wed Apr 18, 2012 11:06 pm

Sounds like your spark gap is too small. My hybrids SG is larger than that and often fails to ignite below 3x mixes, and thats a hybrid.

Edit: ninja'd by warhead. :D
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Unread postAuthor: jackssmirkingrevenge » Thu Apr 19, 2012 12:31 am

This was bloody loud when tested indoors :D
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Unread postAuthor: battlelava » Thu Apr 19, 2012 8:35 am

Ill move the screw out a little, no time to get syringe and test probably

edit: lied found a peizo from a long lighter, http://www.youtube.com/watch?v=mGXsHN6o ... e=youtu.be so it defiantly can't be a spark now
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Unread postAuthor: warhead052 » Thu Apr 19, 2012 10:27 am

Try a bigger spark. Move the screw that had the positive wire in the video out about 2 turns, and then try it with fuel.
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Unread postAuthor: battlelava » Thu Apr 19, 2012 10:54 am

Will do, ill give it a burst of propane because I still don't have a syringe or camber fan
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Unread postAuthor: warhead052 » Thu Apr 19, 2012 11:03 am

Ok, if that doesn't work, use hairspray or something. I know its basic, and makes the chamber sticky, but if nothing else works and that does, I would put up with it. Just make sure you clean the prongs after each game or something. And clean the threads on the cap to make sure they don't get stuck.
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Unread postAuthor: battlelava » Thu Apr 19, 2012 11:27 am

Could i put some type of oil on the cap threads so it goes on and off easier. I'm going to go test it right now

Edit: Im not going to test it now because my parents are being a pain guess i have to wait til next sunday the earliest to test it :angryfire: guess im stuck doing nothing for the rest of today
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Unread postAuthor: warhead052 » Thu Apr 19, 2012 11:45 am

I wouldn't oil it mostly because its flammable. Don't want random ignitions.
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Unread postAuthor: battlelava » Thu Apr 19, 2012 11:58 am

warhead052 wrote:I wouldn't oil it mostly because its flammable. Don't want random ignitions.


What about a dry lubricant,
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Unread postAuthor: warhead052 » Thu Apr 19, 2012 12:40 pm

Dunno, you could try, but I think its still better to carry a wrench with you to torque it open if it gets stuck.
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Unread postAuthor: natas » Thu Apr 19, 2012 12:59 pm

U can use a soap based lubricant/fat that plumbers use. At least we have that here in Norway
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Last edited by natas on Thu Apr 19, 2012 1:45 pm, edited 1 time in total.
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Unread postAuthor: battlelava » Thu Apr 19, 2012 1:08 pm

Ill give it a try worst case ill make a ghetto wrench that i can attach to my molle gear. In the meantime im thinking of possible projectiles, besides the obvious bb's and nerf footballs. Would duct tape balls be dangerous (indirect fire) or should i go look for foam balls somewere
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Unread postAuthor: warhead052 » Thu Apr 19, 2012 1:10 pm

Nah, duct tape balls are fine. As long as it doesn't hit someone directly, or if it has enough time to slow down it should be fine. I like to make paper sabots and put bbs or paintballs in them for a nice effect. I also mix it with flour to create a air burst effect.
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Unread postAuthor: battlelava » Thu Apr 19, 2012 1:14 pm

warhead052 wrote:Nah, duct tape balls are fine. As long as it doesn't hit someone directly, or if it has enough time to slow down it should be fine. I like to make paper sabots and put bbs or paintballs in them for a nice effect. I also mix it with flour to create a air burst effect.


That is what i was going to do, but then i thought about how fast ill go through bb's with a 2" barrel lol. I figure at least if i had an alternative it might be better. I'll make some paper balls wrapped with duct tape for a little weight to give it a good distance.
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Unread postAuthor: warhead052 » Thu Apr 19, 2012 1:16 pm

If you had a 2.5" barrel, you could shoot tennis balls. Those don't hurt too badly when they come in at an angle. If its full on, I don't ever want to experience that again, but at an angle its not so bad because it slows down enough.
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