High preformance mini

Boom! The classic potato gun harnesses the combustion of flammable vapor. Show us your combustion spud gun and discuss fuels, ratios, safety, ignition systems, tools, and more.
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Rambo
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Sun Feb 12, 2006 6:48 am

This is my new mini.It has volume of 0.5L.The comb. chamber is from aluminium.It uses oxigen :twisted: and petrol as fuel.The small brown bottle is the O2 generator.
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pepsi bottles 010.jpg
pepsi bottles 014.jpg
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drac
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Sun Feb 12, 2006 10:07 am

Me likes. I remember a giant gun that a member made before that uses O2 and Mapp, I'll find the link if I get the time.

But nice gun, just be careful with it.
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Rambo
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Sun Feb 12, 2006 10:59 am

I realy need a good silenser for it. 8)
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drac
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Sun Feb 12, 2006 11:55 am

So how exactely does the O2 generator work? H2O2 + KMnO3?

A couple more pictures would be nice.
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Rambo
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Sun Feb 12, 2006 12:48 pm

Very simple
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pepsi bottles 011.jpg
K40T1C
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Sun Feb 12, 2006 11:20 pm

first of all i really like the holder for the gun... secondly, how do you guys get magnesium permanganate, i know how to get the hydrogen peroxidde but i dont think there are any chemical stores near me so yeah...
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Rambo
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Mon Feb 13, 2006 2:51 am

Actioaly I was too lazy to make some handle and the piese of st. is in the same shape I get it.For catalisator you may use MnO2 , FeCl3 , Ag.KMnO4=KALII PERMANGANS
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FiveseveN
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Mon Feb 13, 2006 11:30 am

MnO2 is the black stuff (not the carbon anode, of course) in batteries. Just take a cheap alkaline battery apart.
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Rambo
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Mon Feb 13, 2006 12:00 pm

There are cheap ciniese batteries that have big enternal resistense, but I didn't try them.Just reminding that you MUST HAVE GLASES WHEN OPERATING with H2O2.
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