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Mini Uzi

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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Unread postAuthor: Rambo » Mon Jan 23, 2006 11:38 am

How moch air fo second can provide an emergensy mini air compresor?Im still thinkig about chamecal sorse of gas.
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Unread postAuthor: beebs111 » Mon Jan 23, 2006 4:04 pm

wait ninja when you shoot it does it go off three times? i know its single shot but im having trouble with this, does the combustion start in the hande after you fill it from the lighter in the handle, then go to the back chamber, then go to the front one, expelling the potato?
if that is how it works please tell me, if not just slap me(and tell me how it goes)
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Unread postAuthor: cardinals08 » Mon Jan 23, 2006 5:58 pm

beebs, I am pretty sure that is how it works, I think because he said it went bang 3 times. so I believe you are right
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Unread postAuthor: Urban Ninja » Mon Jan 23, 2006 8:24 pm

Yeh If you look at the diagram (sorry its crappy) They all have inlets for butane off of a normal lighter. I fill each of them up separatley and the electrodes are in the handle. That ignites and shootes fire through the hole and ignites the 2nd chamber then that and the 1st one shoots more fire in to the last chamber. It gives it more power. Woks kinda like those pringle can tennis ball launchers. You can see it happen really well if you film it then play it back real slow. It all hppens in like 1/4 of a second but it still is very noticable.
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Unread postAuthor: cardinals08 » Mon Jan 23, 2006 8:32 pm

ok, I thought I understood, but how did you put holes in the sides of the tic tac packs and then get a good seal so it doesnt leak, and where are the holes for fueling each separately? and then how do you seal the holes after they have been filled? I feel really dumb
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Unread postAuthor: Urban Ninja » Mon Jan 23, 2006 8:40 pm

Dont worry its a bit of a mutant gun. You know when you take apart the barbecue lighters, those rubber tubes with the brass things on the end? I got 3 of thos and put them in the side. Epoxied them to it and fed itdown the thme mage where I can fill them up with a lighter. There is not a 100% seal but for something like that thats just used for spitballs on the balcony it makes hardly any difference!
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Unread postAuthor: cardinals08 » Mon Jan 23, 2006 8:44 pm

ahh, ok, I gotcha, I use the tubes to fill up some of my minis. that makes sense, I got a few tic tac packs today that I am going to try to make into some form of a gun
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Unread postAuthor: Urban Ninja » Tue Jan 24, 2006 12:57 am

Yeah, the tic tacs are fairly unreliable though the heat really affects them so the uzi stops working after a while because the heat from your hand. Build a tic tac AK47 they work amazingly Ill post tonight.
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Unread postAuthor: Rambo » Fri Jan 27, 2006 12:12 pm

That's what I'm telling an oversized UZI.
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Unread postAuthor: Urban Ninja » Fri Jan 27, 2006 8:51 pm

That is awsome. You should put a drum on it and make it n to a thompson then paint it black!! Brilliant. So how much do you pressurise the cko bottle? Does it last long? I was thinking of using a blow gun kind of mechanism.
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Unread postAuthor: Rambo » Sat Jan 28, 2006 2:39 am

I don't fiil it with more then 6atm=90psi.With 40 it lasts for 4 shots :( .Few monts ago I made this so caled blow gun mechanism.It's working for chamber smaller the the silindar.For little gun it is good alternative to te comp air.
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Unread postAuthor: Urban Ninja » Sat Jan 28, 2006 3:40 am

So the 90 psi one works for only 9 shots! Damn. If you had a smaller chamber for a mini one It would last longer? Thats what I want a mini. Now that problems out of the way it is the spark.
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Unread postAuthor: Rambo » Sat Jan 28, 2006 5:49 am

You can use a spark from a lighter with out a problem(exept the low shooting speed.)And at first you may use a film can for a chamber.It will last many shots befoure it melt.. :wink:
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Unread postAuthor: Urban Ninja » Sat Jan 28, 2006 7:06 am

Yeah a semi auto. Ill try that. Any ideas for a full auto? One that is easily bought or made?
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