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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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metalmeltr
Specialist 4
Specialist 4
Posts: 426
Joined: Thu Dec 18, 2008 3:42 pm
Location: united states

Tue Nov 02, 2010 9:45 am

Camber 4x10"
barrel 2"x5'.
meter pipe 3/8" running direct tank pressure.
Attachments
cannon overview.JPG
This show the + and - hookup for the fan, i use a benchtop powers supply at home and a battery pack from a drill modified to hold 2 nine volts and a switch, it has 2 leads with aligator clip and i zip tie the pack to the cannon<br /><br />It alo shows the BBQ ignitor held in 3/4&amp;quot;pvc conected 2 drywall screw for a single spark gap. the electrical connectin were soldered and coverd with silicone
This show the + and - hookup for the fan, i use a benchtop powers supply at home and a battery pack from a drill modified to hold 2 nine volts and a switch, it has 2 leads with aligator clip and i zip tie the pack to the cannon

It alo shows the BBQ ignitor held in 3/4&quot;pvc conected 2 drywall screw for a single spark gap. the electrical connectin were soldered and coverd with silicone
The blade was broken by actdentally reaching in while the fan was running.
The blade was broken by actdentally reaching in while the fan was running.
shot a D cell out of this cannon with a sabot and this i what i got
shot a D cell out of this cannon with a sabot and this i what i got
Quick connect propane fuel adapter
Quick connect propane fuel adapter
Last edited by metalmeltr on Tue Nov 02, 2010 12:52 pm, edited 4 times in total.
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ThornsofTime
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Posts: 88
Joined: Thu Oct 07, 2010 1:39 pm
Location: Texas

Tue Nov 02, 2010 10:18 am

easiest way is to just do a google search for "image resize" and use a free program. lets you upload your pic and resize it, then re-save it on your desktop or something. upload the resized pic to spudfiles.

heres the one i like
http://www.resize2mail.com/

click upload... select picture... click the bubble next to 75% then go. right click pic from the internet and save it. upload that to spudfiles.
^(O_o)> Hi there
>(O_o)># I made you this waffle!
>(O_o)># then I remembered you were a dick.
(>#<) So I ate it.
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Gun Freak
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Joined: Mon Jan 25, 2010 4:38 pm
Location: Florida
Been thanked: 8 times

Tue Nov 02, 2010 10:27 am

I like to use sights like photobucket because its fast and I don't like the SF uploader, but its personal preference.
OG Anti-Hybrid
One man's trash is a true Spudder's treasure!
Golf Ball Cannon "Superna" ■ M16 BBMG ■ Pengun ■ Hammer Valve Airsoft Sniper ■ High Pressure .22 Coax
Holy Shat!
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metalmeltr
Specialist 4
Specialist 4
Posts: 426
Joined: Thu Dec 18, 2008 3:42 pm
Location: united states

Tue Nov 02, 2010 10:43 am

ThornsofTime wrote:easiest way is to just do a google search for "image resize" and use a free program. lets you upload your pic and resize it, then re-save it on your desktop or something. upload the resized pic to spudfiles.

heres the one i like
http://www.resize2mail.com/

click upload... select picture... click the bubble next to 75% then go. right click pic from the internet and save it. upload that to spudfiles.
thanks ill try that
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Technician1002
Captain
Captain
Posts: 5189
Joined: Sat Apr 04, 2009 11:10 am

Tue Nov 02, 2010 11:16 am

The Gimp is a free full featured photo editor. It can do most things you would want to do including crop, resize, adjust color, brightness, add text, etc. I use it to scale my photos to new sizes and crop them to remove unimportant distractions from the photo.

The Gimp is open source.. Feel free to copy it under the GNU license.
http://www.gimp.org/
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