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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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Hubb
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Wed Aug 29, 2007 9:00 am

Just putting this out there for you guys.

I recently built a small combustion and quickly realized I had a slight problem. The chamber is 1.5" sch 40. The problem I ran into was that I could not find a fan small enough for this chamber. I went to Wal - Mart and searched around and finally found something that worked. This link will take you to this company's sight:

http://www.o2-cool.com/funfans.php

I purchased the ipod looking fan (the motor fit in 1" pipe) and, after some modifications, it works nicely.
Last edited by Hubb on Wed Aug 29, 2007 4:13 pm, edited 1 time in total.
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f.c
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Wed Aug 29, 2007 3:54 pm

damn if ony i thought of this. i took apart a nice remote control plane for a motor and propellor to fit in 50 mm pvc.
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Hubb
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Wed Aug 29, 2007 4:01 pm

Like I said, I did have to modify to get the motor (cut the motor from the case, then make a blade). But it only cost me 3 bucks.
pyromanic13
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Wed Aug 29, 2007 4:11 pm

"404 not found" = your link for me
Movie dialogue: "The good die first."
Tom: "But most of us are morally ambiguous, which explains our random dying
patterns."
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Hubb
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Wed Aug 29, 2007 4:14 pm

Link has been edited.
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n3rdkw
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Thu Aug 30, 2007 12:01 am

Heh, that's cool.
I dunno if the trouble of installing that fan was worth it though.
I mean, if your chamber's 1.5" how long can it be?
Most aerosal's spraying power probably mixes it very well.
I dunno. Mine's 1.5" * 3" and I don't use any fan. Just Lysol
Goal: a 750fps hybrid
Novacastrian
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Thu Aug 30, 2007 1:37 am

Anyone that uses Methalated Spirits for fuel could find that misting fan very handy :)
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Hubb
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Thu Aug 30, 2007 5:14 am

I actually thought of that, too. But my little cannon is running off of propane. I probably could do without the fan and still get a goo shot but what the hell. I built a little bitty advanced combustion. :)
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