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First mini

Built a miniature cannon? Then post it here! This section is for completed, finished cannons that you have built. Please include pictures and information.
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First mini

Unread postAuthor: Fnord » Tue Feb 20, 2007 7:20 pm

I just woke up one day about a week ago and thought "hey, I think I'll make a mini," and, half an hour later I ended up with this.
I've made guns before but they were all hose-clamps-and-duct-tape pneumatics (they did work well though), so this is technically my first combustion too.

The barrel is really a piece of hula-hoop that just happens to be the right diameter for marbles, and the chamber is a 24 cubic inch parsley canister.
I put a refillable butane container in the handle so I can just press a button on the back to inject gas.
The handle also opens and the spark unit can be popped out easily when it dies.

I haven't really tested it for range and velocity yet. Marbles generaly don't go through drywall, but ball bearings and AA batterys will punch holes in it easily.


Comments are welcome.

>Update 3-11-07:
Gun blew up, result of tight fitting marble+perfect mix+weak spot formed in the front of the chamber. Gave a nice bang and the scope popped off, which was kinda funny.
I'll repair it once I find another parsley container.
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Attachments
mini1.jpg
(slight camera distortions)
mini2.jpg
flash.jpg
pic of the ignition in a dark room
flash.jpg (14.42 KiB) Viewed 1273 times
dmg.jpg
the apple was shot with a ball bearing
dmg.jpg (37.24 KiB) Viewed 1273 times
mini updated.jpg
Updated pic with laser, scope and silencer
Last edited by Fnord on Sun Mar 11, 2007 4:40 pm, edited 2 times in total.
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Unread postAuthor: trae08 » Tue Feb 20, 2007 7:50 pm

sweet nice design nice gun. 10
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Unread postAuthor: experament-u2 » Tue Feb 20, 2007 7:55 pm

thats an awsome mini i love the see through chamber greatjob and nice damage
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Unread postAuthor: medievalman » Tue Feb 20, 2007 8:34 pm

it's fantastic! nice job with the fuel injection too.
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Unread postAuthor: TwitchTheAussie » Tue Feb 20, 2007 10:22 pm

Dude absolutely beautiful. Great job!
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Unread postAuthor: BIG FISH » Wed Feb 21, 2007 5:09 pm

Really nice gun. I think thats the nicest mini i've ever seen.
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Unread postAuthor: LGM » Wed Feb 21, 2007 5:58 pm

I agree with the comments above me.
Great idea with the hula hoop tube, that thing would look awesome with a silencer.
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Unread postAuthor: Fnord » Wed Feb 21, 2007 6:44 pm

Thank you all for the positive comments. I look forward to posting more cannons when spring comes around(I'm pretty much stuck with small indoors stuff over the winter).
I might try making a mini hybrid from some steel pipe I have laying around over the next month or so. I'm trying to get acquainted with all types of cannons before I start building big.
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Unread postAuthor: LGM » Wed Feb 21, 2007 6:59 pm

Indeed, post the hybrd if you make it. I want to make a mini steel hybrid as well. I hate being stuck inside too.
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Unread postAuthor: BlackOps » Mon Feb 26, 2007 7:33 pm

Nice gun! 9/10 Is there a lot of kick-back?
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Unread postAuthor: Fnord » Mon Feb 26, 2007 8:40 pm

If the mix is just right with a heavy projectile it has a nice recoil but not enough to be proud of :)
The gun is only 6 ounces (170 grams).
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Unread postAuthor: spudthug » Thu Mar 01, 2007 6:57 am

wow that is a sweet design.....i have been looking for one exactly like this...you dont mind if i build it do you???oh and i like the ignition in a dark room how did you capture it???video camera then still shot?
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Unread postAuthor: Fnord » Thu Mar 01, 2007 8:32 am

I don't mind at all... post it if you build it.
For the ignition picture I clamped the gun in a vice and used the shutter speed adjustment on my digital camera to keep the shutter open while the butane burned.
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Unread postAuthor: ewohkoda » Sat Mar 03, 2007 9:30 am

hey im currently makind a mini using a hollowed-out expo marker as the chamber, but i cant figure out a cap or a plug to use in the back of it. any hints? :oops:
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Unread postAuthor: chaos » Sat Mar 03, 2007 9:41 am

ewohkoda wrote:
hey im currently makind a mini using a hollowed-out expo marker as the chamber, but i cant figure out a cap or a plug to use in the back of it. any hints? Embarassed.

start your own thread mate take some pics and im sure you will find help.

peace
chaos
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