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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jimmy101
- Sergeant Major 2


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- Joined: Wed Mar 28, 2007 9:48 am
- Location: Greenwood, Indiana
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Wed Aug 12, 2009 1:05 pm
Nice find. A bit pricey though at $13.30.
Here's one that is almost as small (25mm square x 10mm thick) for $2.50.
If you want
really, really small fan then
this one is 4mm diameter x 8mm long (~3/16" x 3/8") for $1.25. Just grind the weight into a rough fan shape, or replace it with a homemade plastic blade.