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Tiny cannon + Collateral damage

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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Tiny cannon + Collateral damage

Unread postAuthor: inonickname » Sat Jul 03, 2010 4:42 am

*For the purposes of discussion here, to fire this cannon I blow through the pilot hole.

I think this would count as one of the highest energy density minis here. It uses a precisely machined venturi to accelerate a 4mm steel bore to high velocities in only 3cm using the power of your breath.

It's machined from 316 stainless steel to prevent overpressure from the highly advanced valve mechanism rupturing the barrel.

After firing through both sides of a steel can, a towel and a piece of plywood it proceeded to exit through the side of the shed, 5 meters away. I believe this new air-breath valve I have created can revolutionize small bore airguns. Unfortunately I have a patent pending so I can't show the innards :roll:

The cannon:
Image

Down the firing line: (point blank target removed for clarity)
Image

The wall:
Image
Image

Camera batteries need replacing.
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Unread postAuthor: jhalek90 » Sat Jul 03, 2010 6:23 am

So, other than your lung power.... is there any source of energy?
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Unread postAuthor: jackssmirkingrevenge » Sat Jul 03, 2010 6:25 am

jhalek90 wrote:So, other than your lung power.... is there any source of energy?


Nothing we'll be discussing here :roll: :wink:
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Unread postAuthor: POLAND_SPUD » Sat Jul 03, 2010 6:28 am

@jhalek90
can't you read between the lines?? :wink:

@inonickname
I odn't think it is the best idea to post it here...
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Unread postAuthor: Crna Legija » Sat Jul 03, 2010 6:39 am

what pressure are you generating with your lungs? :wink: :wink:

do you just shoot 4mm bbs
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Unread postAuthor: qwerty » Sat Jul 03, 2010 6:39 am

So you blow through it but it's held in a vice :wink:
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Unread postAuthor: FighterAce » Sat Jul 03, 2010 7:03 am

qwerty wrote:So you blow through it but it's held in a vice :wink:


maybe its actually made of depleted uranium so he cant even hold it :lol:
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Unread postAuthor: jrrdw » Sat Jul 03, 2010 8:42 am

Any video's of it in action? You realy filed for a patent?
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Unread postAuthor: MRR » Sat Jul 03, 2010 9:26 am

@jrrdw
I think the matchstick in the first picture is not only for size comparison.... :wink:
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Unread postAuthor: SpudBlaster15 » Sat Jul 03, 2010 12:39 pm

Looks a bit like a smaller version of my old TATP powered BB cannon. :wink:
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Unread postAuthor: jrrdw » Sat Jul 03, 2010 3:03 pm

MRR wrote:@jrrdw
I think the matchstick in the first picture is not only for size comparison.... :wink:


That doesn't tell me if there is a video of it in action or if he realy filed for a patent...
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Unread postAuthor: Zeus » Sat Jul 03, 2010 6:18 pm

inonickname, I get it. Mind if I PM you to confirm what I think?
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Unread postAuthor: jor2daje » Sat Jul 03, 2010 7:26 pm

haha i dont think he wants us to guess anything hes just showing a neat "air" cannon he machined.

inonickname, looks great I hope to make something similar once I get my new southbend lathe going.
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Unread postAuthor: Hotwired » Sat Jul 03, 2010 9:09 pm

I've got a patent pending valve in a genuine antique flintlock musket.

I'll post damage pictures later.







Looks interesting but seriously...
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Unread postAuthor: deathbyDWV » Sat Jul 03, 2010 10:11 pm

Haha looks cool... I wonder how you blow so hard? I guess just years of practice... :roll: :P
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