Check out my first spud gun!

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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4ourLoko
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Mon Jan 03, 2011 4:25 pm

Hello everyone, 1st post here at spudfiles and I want to show you guys the first spud gun I've ever built. It is a "spray and pray" as some would say but it's more powerful than you'd think. The spud gun weighs 5 lbs 3 oz and has a 2" x 40" PVC barrel. A 4" x 12" PVC combustion chamber with screw-on end cap. A piezoelectric grill igniter wired to the back of the combustion chamber. I also mounted my Flip Ultra HD to the combustion chamber for an fps-ish view lol and by mounted I mean I duct taped it on there haha!!

Pictures of the spud gun and the Axe I use for fuel:

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1/2" plywood is no match for potatoes:

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I don't know how far this thing can shoot but potatoes get 9 seconds of hang time when fired straight up which you can see (well, hear) at the end of this video I made

Comments would be appreciated.
Last edited by 4ourLoko on Mon Jan 03, 2011 9:42 pm, edited 3 times in total.
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jrrdw
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Mon Jan 03, 2011 6:19 pm

Well we don't feel like typeing either so we wont tell you what we think of your spudgun.

Welcome to Spudfiles.
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saefroch
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Mon Jan 03, 2011 6:41 pm

I can't tell you much, since all you've provided is a video of something shooting something at something that looks like plywood and putting a hole in it, then what is likely the same something shooting something and it disappearing from view. Not really much to go on.

Welcome to Spudfiles. We love specifications :wink:.
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4ourLoko
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Mon Jan 03, 2011 9:06 pm

Edited OP.
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jackssmirkingrevenge
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Tue Jan 04, 2011 2:42 am

Much better :) now that you've mastered the archaic art of the basic spud cannon, do you plan on moving to more advanced projects? Proper fuelling from a propane or butane cannister and a chamber fan would be obvious improvements ;)
hectmarr wrote:You have to make many weapons, because this field is long and short life
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4ourLoko
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Wed Jan 05, 2011 6:47 pm

Super-sonic potato (sliiight exaggeration :P)+ oj carton full of fruit punch kool-aid = raining blood haha
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Davidvaini
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Wed Jan 05, 2011 8:12 pm

honestly why wasnt this in the best shot comp.. I love this shot!
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jrrdw
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Wed Jan 05, 2011 8:13 pm

Davidvaini wrote:honestly why wasnt this in the best shot comp.. I love this shot!
He joined after the contest.
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Technician1002
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Wed Jan 05, 2011 8:19 pm

It is a very nice shot. Well done.

I presume this is a combustion? Tell us about the launcher.
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4ourLoko
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Wed Jan 05, 2011 8:34 pm

Wow I'm surprised by all the good feedback I'm getting on here and on youtube, glad I could entertain you guys for 20 sec lol.

@Tech: Yep it's a combustion and it's just a simple "spray and pray". I made a thread about the gun here if you want to know more http://www.spudfiles.com/forums/check-o ... 22197.html
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Technician1002
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Wed Jan 05, 2011 9:17 pm

I was guessing it was a combustion due to the lack of a pilot hiss before the bang. Thanks for the confirmation
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saefroch
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Wed Jan 05, 2011 9:42 pm

That video is so simply amazing, I probably would have voted for it. Dang...
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ramses
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Wed Jan 05, 2011 11:08 pm

Yeah. If only you had a mannequin or something...

I should make it a point to shoot a 2 liter full of kool aid at something with my upcoming 4" pneumaitc. Which is actually for school. teacher approved. :D

Great video. I've tried balloons full of ketchup(as projectiles), but it wasn't the same.
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jackssmirkingrevenge
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Thu Jan 06, 2011 1:06 am

Brilliant, that would have looked great in HS!

Someone should do it with a mannequin, a kind of larger scale version of this ;)

[youtube][/youtube]
hectmarr wrote:You have to make many weapons, because this field is long and short life
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bighead33
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Thu Jan 06, 2011 1:32 am

jackssmirkingrevenge wrote:Someone should do it with a mannequin, a kind of larger scale version of this ;)

yea but you'll have to fill it with fire crackers or some thing or else it'll just slowly bleed out from the entrance womb and you won't get the imploding effect you want with the OJ container.
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