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I need help with my mini!!

A place to ask general spud cannon related questions.
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I need help with my mini!!

Unread postAuthor: Shrimphead » Sat Feb 11, 2006 5:35 pm

I just barely made a pill bottle mini using a piezo, and i can't get it to light the fuel!
I've been using the butane from the lighter that I stole the piezo from. I can see the spark when I take off the cap, but when i spray fuel in and put the cap on, it doesn't fire?
Does anyone know how long I should spray the butane in for? (my combustion chamber is just a normal children's tylonel size bottle)
Thanks!!
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Unread postAuthor: cardinals08 » Sat Feb 11, 2006 7:27 pm

spray for 5 seconds, start clicking the piezo, if it fires, five seconds, if it takes a while before it ignites, go down to 4, and so on
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Unread postAuthor: jrrdw » Sat Feb 11, 2006 7:32 pm

if you have a full lighter about 10 to 15 seconds, make sure your ignition points gap is only about .020

what color is the spark when you can see it?

try to get the longest blue spark you can get

TECH TIP -- the smaller the spark gap, the hotter the spark, (blue is the hottest)
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Unread postAuthor: nabu92 » Sat Feb 11, 2006 7:36 pm

I think ur using 2 little or 2 much fuel. Instead of using a lighter, use butane refills for lighters, thats what I use and it works every time. U could also use hairspray or any other combustible spray.
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Unread postAuthor: Shrimphead » Sat Feb 11, 2006 10:10 pm

My spark gap is really small (If it was any smaller then the things are touching) The spark is blue, but it's really hard to get it to spark.
I've tried other sprays, and haven't got anything, but i may need to go buy some better stuff. I'm going to try using more fuel because the most i used was 5 second's worth
thanks
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Unread postAuthor: cardinals08 » Sat Feb 11, 2006 10:15 pm

if you can find biannca I heard that works great, one spray and its good to go. (Biannca is a breath freshener)
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Unread postAuthor: nabu92 » Sun Feb 12, 2006 2:14 am

5 seconds if too much for a mini, i use 5 seconds for my big cannon
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Unread postAuthor: nicholai » Sun Feb 12, 2006 9:01 am

yeah id say your fuel mix is too rich, try backing down to like 2 seconds
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Unread postAuthor: cardinals08 » Mon Feb 13, 2006 9:40 pm

I use 5 seconds from a lighter in my mini pill bottle
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Unread postAuthor: Shrimphead » Thu Feb 23, 2006 7:19 pm

I've tried 5 seconds, 2 seconds, 10 seconds, but nothing works! I'm just using normal butane, whats wrong?!?! I can get a spark, so that's not the problem. What should I try?
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Unread postAuthor: _Hell_Storm_ » Sun Mar 26, 2006 1:09 pm

i recomend start again somethink must be up with it some were there must be a hole were its ascapeing i made a tutorial how to make a pill bottle micro gun its realy easy to understand http://www.freewebs.com/micro-gun have fun :wink:
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