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ignitors

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: reapez » Fri Apr 13, 2007 7:25 pm

i made a mini spud gun, horrible success of combustions though, maybe 1 in 30 click and different air ratios work :( :shock: :evil:

im using a cheap electric cigarette lighter ignitor, is this the problem. do cigarette lighters and b&q lighters differ in anyway?
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Unread postAuthor: iPaintball » Fri Apr 13, 2007 7:28 pm

Oh yeah. BBQ ignitors can produce as much as a .5" spark, whereas ciggarette lighter ignitors produce about a 1/4" spark. If it's reliability and longevity, a suggest a stun gun or other similar high voltage circuit.
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Unread postAuthor: Bubba05 » Sat Apr 14, 2007 12:19 am

I use BBQ igniters coz they are reliable and i can ajust the gap so you get a bigger spark and you can make a clean looking gun coz they screw into the chamber and your just left with a red button!! Heres a pic of what i use!
Bubba!
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Unread postAuthor: pyrogeek » Sat Apr 14, 2007 1:06 am

That design is sometimes considered unsafe due to the risk of the ignitor flying out, or it weakening the chamber. Now, if you had doubled up PVC and a big ass (fender) washer to spread the load on the inside, then it would probably be pretty safe.
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Unread postAuthor: Bubba05 » Sat Apr 14, 2007 1:40 am

Ive never had a problem with this way? I silicone the ignitor to the cap so its sealed!and there is a washer under the nut?

Bubba
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Unread postAuthor: SpudBlaster15 » Sat Apr 14, 2007 11:20 am

If installed properly, there is generally no issue involving a BBQ igniter blowing out of an end cap or chamber wall. However, if your gun is made of PVC, the risk of a chamber explosion greatly increases when you drill a large hole in the end/side of it. If the chamber is made of ABS, this is not an issue.

Mounting the igniter in the end cap can promote an accidental ignition while muzzle loading a projectile.

It is still best to use the traditional 'screws as electrodes' method.
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Unread postAuthor: Bubba05 » Sat Apr 14, 2007 11:35 am

I never muzzel load with the cap on and i fuel after its loaded.
Saftey first people!!

Bubba
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Unread postAuthor: SpudBlaster15 » Sat Apr 14, 2007 11:52 am

I realize that some people do take into account safety, but one must realize that most of the population who build potato launchers are intellectually lacking, and usually don't think about such potential dangers until an accident actually happens.
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Unread postAuthor: pyromaniac » Sat Apr 14, 2007 11:57 am

I don't think were intellectually lacking.

I'd say people who are intellectually lacking are the people who use dwv with pneumatics and get their ears blown out.

i bet you only like 4/5 of the people are not lacking intellect.
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Last edited by pyromaniac on Sat Apr 14, 2007 12:17 pm, edited 1 time in total.
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Unread postAuthor: SpudBlaster15 » Sat Apr 14, 2007 12:05 pm

80% would constitute a majority...

I do agree however, that that number is quite accurate in terms of stupidity.
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Unread postAuthor: pyromaniac » Sat Apr 14, 2007 12:19 pm

pyromaniac wrote:i bet you only like 4/5 of the people are not lacking intellect.


that would mean 1/5 are stupid
not 4/5
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Unread postAuthor: SpudBlaster15 » Sat Apr 14, 2007 4:55 pm

Nice job, editing your post to avoid sounding like a moron. I believe your attempt to fool me supports your original statement:

i bet you only like 4/5 of the people are lacking intellect.


Ahem...

Last edited by pyromaniac on Sat, Apr 14 2007, 10:17 AM; edited 1 time in total
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Unread postAuthor: reapez » Sat Apr 14, 2007 7:38 pm

can we keep on topic please.

so even if the bbq lighter ignitor and electric lighter ignitor look the same, the bbq ignitor will always be more powerful?

also does the ignitor recharge itself? i noticed the more times i clicked the ignitor the seemingly weaker it got until the spark didnt jumo anymore(kept at the same distance) :roll:
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Unread postAuthor: Highvoltage5 » Mon Apr 23, 2007 3:13 pm

I have installed the bbq ignighter in side wall of the ig chamber and only got about 15 shots the ig looks to be cracked slighlty . I jb welded a paper clip on the side of the ig and silicoed it inside the chamber . The spark is very small now .whats a better triger mech
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Unread postAuthor: homeflake210 » Mon Apr 23, 2007 4:40 pm

Get a BBQ igniter.
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