SpudFiles

UPDATE: 29 April 2011 - Rules

That's right. Think fast!

Figured these contests are cheap, quick, and mildly interesting, so I will try to start one.

Entries can go in this thread, you have a week.

Some guidelines:

1.) Average cost for a cannon: $0
2.) If you would otherwise feel the need to post it in the showcase sections, it probably doesn't belong here.

Some rules:

1.) The cannon needs to work. Video proof or stills/etc. should be included. You have until the end of the competition to prove it.
2.) The cannon needs to hold together for more than one shot.
3.) No cannons that are already posted can be entered.
4.) Only one cannon can be used by the end of the competition per member. Feel free to "practice" or get a preliminary entry.
5.) All forums rules apply.


So, bring on the pop bottles, electrical tape, and Right Guard.

I'll post mine tonight, as the glue is currently drying.

EDIT: Some more info.

I will be cruising this thread and the showcases for the next week. If I'm being slow shoot me an email. Entries will be added to the list below.

Also, feel free to be liberal naming your creations.

Entries
Entry #1 - Clear Chambered Burst Disk Golfball Combustion - mark.f - Verified
Entry #2 - Cardboard Box of Death - jakethebeast - Verified, because tape fixes everything.
Entry #3 - The Coke Can Combustion - Crna Legija - Verified
Entry #4 - SmellRod - Labtecpower - Verified
Entry #5 - Biohazard - Technician1002 - Verified
Entry #6 - Muzzle Breaks - al-xg - Verified
Entry #7 - Balloon Pneumatic - clemsonguy1125 - Verified
Entry #8 - Breech Loading Crush Bottle Pneumatic - whoa044 - Verified
Entry #9 - Pump, Glue, and Tape - qwerty - Verified
Entry #10 - WhipperSnapper - Zeus - Verified
Entry #11 - Home Made Blowgun - wyz2285 - Verified
Entry #12 - Wooden Piston Hybrid - Fnord

I think I may actually enter this for a change. Probably have something in a couple days.

Sorry for the wait on the picture(s), and sorry in advance for the lack of description and detailed pictures, which I will fix soon, I have 15 minutes to do this... I'll post an explanation (not really required) and more pictures when I get back.

Simple ghetto combustion. Weak, cheesy, and exactly 0 dollars and 00 cents. Had some interesting misfires with this thing, but everything is resolved.

EDIT: Some more info...

All of the pipe was from a scrap pile I found under the house. I had the barrel from a failed burst disk launcher, which was the source of the 1" pipe for the handle and the bushing/coupling used to attach the barrel. The rest is explained in the pictures below.

Man, I'd so be in. Good idea

Don't think I'll be touching a power tool for a while though...

Looking forward to seeing some crappy (read: awesome) entries!

I'm gonna throw something together

Any specific type of launcher? Pneumatic? Combustion?

Updated my post above with more pictures. Entry number one baby! (Although I did get a rather good head start. )

warhead052 wrote:Any specific type of launcher? Pneumatic? Combustion?

Any type. Combustion just lends itself to ghetto-ness better, so that's what I did. The last ghetto contest was won by one of JoergS's slingshots made with condoms. There was also a simple pneumatic using cardboard tube and a pop bottle. The pop bottle was simply smashed with a hammer to fire.

Go nuts. The only real thing you should spend is maybe a little time and brainpower.

EDIT:

Yamroll wrote:Man, I'd so be in. Good idea

Don't think I'll be touching a power tool for a while though...

Looking forward to seeing some crappy (read: awesome) entries!

Who said power tools should be involved. Wood screws are usually free (you have them lying around), and only require a screwdriver to join plastic parts. My first combustion launcher electrodes used deck screws which I drove into the PVC with a screwdriver, and holes were drilled with a bit gripped in a pair of vise grips.

mark.f wrote:Updated my post above with more pictures. Entry number one baby! (Although I did get a rather good head start. )

warhead052 wrote:Any specific type of launcher? Pneumatic? Combustion?

Any type. Combustion just lends itself to ghetto-ness better, so that's what I did. The last ghetto contest was won by one of JoergS's slingshots made with condoms. There was also a simple pneumatic using cardboard tube and a pop bottle. The pop bottle was simply smashed with a hammer to fire.

Go nuts. The only real thing you should spend is maybe a little time and brainpower.

EDIT:

Yamroll wrote:Man, I'd so be in. Good idea

Don't think I'll be touching a power tool for a while though...

Looking forward to seeing some crappy (read: awesome) entries!

Who said power tools should be involved. Wood screws are usually free (you have them lying around), and only require a screwdriver to join plastic parts. My first combustion launcher electrodes used deck screws which I drove into the PVC with a screwdriver, and holes were drilled with a bit gripped in a pair of vise grips.

Hahah, well let me rephrase. ANY tools.

My hand is shot.

Hmm, It looks like my first combustion may become a contest entry. I have something in mind that should qualify.

hehe, i have waited for a ghetto cannon contest

Made mine in like 5 mins, build cost was like 0.5€ for the tape. i could have used masking tape but ill like this more this way



Ghetto enought? i call this the "cardboard box of death. should i add a chamber fan and fuel meter?

The Coke Can Combustion

barrel: 7mm od 6mm id, Extension spring
combution chamber: 375ml coke can, dah.
cost: $0.00
time: 5min
LOLZ: lots

haha thats like epic does it work?

yep i just let about 8sec of gas from my lighter, then stick a long nose ligher in the hose barb at the back and BOOM. I have yet to acutely shoot something out of it.

I threw something together too..

The SmellRod



Shoots with Hydrogen/oxygen, so makes some nice bangs
I have to shoot something with it yet.

Specifications

29 cm, 16 mm ID barrel
Fill port at the back
piezo ignition
Deo-can supressor (works very well, actually)
Bike-handlebar grip
Very Very much ducttape[/b]

Yes! Four entries in a 14 hours.

I added them all to the list, but Labtec didn't specify a name.

Your entries do not disappoint. Keep the ghettoness rolling in!