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Ignition type?

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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Ignition type?

Unread postAuthor: Can-O-Man » Fri Nov 17, 2006 9:48 pm

i am a first time combustion cannon builder and i was wonderif it should use a BBQ igniter or a lantern lighter? if you have any sugestion please list the pluse and negitives of both please.
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Unread postAuthor: MisterSteve124 » Fri Nov 17, 2006 10:17 pm

Use a bbq igniter. Well they are both easy to mount but a latern igniter you have to keep replacing the flint and they don't work when they're wet. Plus a barbeque igniter looks cooler.
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Unread postAuthor: ProfessorAmadeus » Fri Nov 17, 2006 10:43 pm

Both like pimpman has done. If you have both just use both.
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Unread postAuthor: nicholai » Fri Nov 17, 2006 10:57 pm

I like BBQ ignitors better because they are much more customizable, you can put the ignitor anywhere. Now a flint must be installed over two layers of pvc (for safety) and gives you no handle option.
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Unread postAuthor: pyrogeek » Sat Nov 18, 2006 1:32 pm

Grill ignitors are way cooler, and would be more comfortable to operate. Just don't use cheap hair spray, it gums up the electrodes. Use starting fluid, propane, or butane.
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Unread postAuthor: nicholai » Sat Nov 18, 2006 1:57 pm

i reccomend using zinc plated screws so they can be cleaned up without rusting in case you have to break down and buy a can of aqua net
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Unread postAuthor: MisterSteve124 » Sat Nov 18, 2006 4:57 pm

Yeah and make sure they are pan head screws or just use bolts.
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Unread postAuthor: frankrede » Sat Nov 18, 2006 5:18 pm

Use bolts and nuts with stun gun ignition.
But thats just my next project.
For a basic combustion I use Lantern lighters because they almost always work with aerosals.
Grill lighters are picky and soemtimes don't light.
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Unread postAuthor: nicholai » Sat Nov 18, 2006 5:45 pm

The problem with stun guns is that not everyone can buy them, or people think they are too expensive, I just bought 20+ stun guns and they cost the SAME as a bbq ignitor. The spendy part is when you want to make it into a good looking attachment for your cannon, and replace batteries a lot. I hate the look of a duct taped stungun with wires coming from it so i mount all of mine in a project box with a safety switch with LED, and seperate wires and switch for a trigger, here is an example:

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Unread postAuthor: SpudBlaster15 » Sat Nov 18, 2006 6:06 pm

nicholai wrote:i reccomend using zinc plated screws so they can be cleaned up without rusting in case you have to break down and buy a can of aqua net


I dont. Most zinc plated screws have an incredibly soft steel base alloy. The 1/8" zinc plated screws holding my chamber fan in place snapped off when I tried to back them out, and let me tell you, it is no easy task trying to drill a screw out when it is threaded into ABS plastic. The bit slipped many times, and I ended up having to use 1/4" screws as replacements. At least these wont snap off.

I would reccomend a BBQ igniter. If your cannon is under barrelled like many are, you can wire 2 gaps in series at each end of the chamber and get more of the fuel burned before the projectile leaves the barrel. Also, they are much easier to operate, and more reliable when wet.
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Unread postAuthor: MisterSteve124 » Sat Nov 18, 2006 6:30 pm

Actually don't you mean use stainless steel screws so they don't rust? and how the hell did you get 20+ stun guns for 13 bucks?
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Unread postAuthor: SpudBlaster15 » Sat Nov 18, 2006 6:47 pm

MisterSteve124 wrote:how the hell did you get 20+ stun guns for 13 bucks?


I think he means he purchased 20 stun guns, EACH for the price of a BBQ igniter. :roll:
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Unread postAuthor: MisterSteve124 » Sat Nov 18, 2006 6:55 pm

o lol then why would you need 20?
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Unread postAuthor: nicholai » Sun Nov 19, 2006 5:46 pm

www.preventsecurity.com has them for dirt cheap, 100,000 volts. I bought so many because I take them apart and assemble them into the box shown above. This makes it legal to sell to customers in stun gun restricted states because its no longer a weapon, it is considered an ignition source when its taken from its weapon like case.
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Unread postAuthor: abcdefg » Fri Nov 24, 2006 6:05 pm

wow u r right they cost 11 bucks

I would personally use a sparkstrip as seen on


http://www.burntlatke.com/strip.html
I have not seen anything inappropriate on this website...
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