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.357 idea.

Discuss miniature cannons built from things such as pill bottles and pen caps.
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.357 idea.

Unread postAuthor: warhead052 » Sat Jul 09, 2011 10:44 am

I have a couple .357 magnum shells, and I my friend has a .357 revolver. My idea, which has been put to use in a different gun, is a coaxial mini, with custom pump, inside the shell. These are spent cartridges, so its safe. I just need some help with piloting. I want to use the hammer from the revolver, but I need a way to pilot the piston inside of the shell.

Idea 1, a burst disk.
Idea 2, a schrader valve core.
Idea 3, something that I can't post due to rules, but uses the same concept as the original cartridge.

JSR, a message for you, do you have any tips for me to cast epoxy this small?

A message to anyone, do you think this could be fun to make and shoot, or just a waste of time?
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Unread postAuthor: Gun Freak » Sat Jul 09, 2011 10:47 am

It will be a waste of time, but I'd use the schrader valve core, and yes he can cast epoxy this small, he made a gun out of a schrader valve lol
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Unread postAuthor: jor2daje » Sat Jul 09, 2011 10:53 am

Jsr can probably chime in with the website, but when a while a go he posted a cool link with a mini pistol than fit on your keychain, it used shells like the ones you are describing and had a hand pump to reach the high pressure necessary. The pump was very easy to build, I made one for my cigarette gun.
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Unread postAuthor: warhead052 » Sat Jul 09, 2011 10:57 am

Ok, well I was hoping to shoot finishing nails with the ends chopped off so they fit in the barrel. I was thinking a small high pressure (1,000psi) air pump to fill the cartridges, and because I have cast epoxy now, I feel like I can get started on some bigger projects. (the irony, I say bigger but really I mean smaller....)
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Unread postAuthor: jor2daje » Sat Jul 09, 2011 11:01 am

As impressive as all thE eprojects jsr does with epoxy are I think most of them take a level of skill and patience higher than the average spudder (definitely me), I have had much more success working with brass, copper, steel and solder ive found it to be faster more forgiving and much easier to take apart if you mess up.
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Unread postAuthor: warhead052 » Sat Jul 09, 2011 11:04 am

Well, my friend goes to a open range that no one cleans, so if I mess up, there are probably half a million shells on the ground for me. So its no big deal.
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Unread postAuthor: jackssmirkingrevenge » Sat Jul 09, 2011 12:32 pm

jor2daje wrote:Jsr can probably chime in with the website, but when a while a go he posted a cool link with a mini pistol than fit on your keychain, it used shells like the ones you are describing and had a hand pump to reach the high pressure necessary.


I'll bite :)

As impressive as all the projects jsr does with epoxy are I think most of them take a level of skill and patience higher than the average spudder (definitely me)


I'm not generally very patient, I think it's more a question of experience with the technique.

JSR, a message for you, do you have any tips for me to cast epoxy this small?


Have a careful look through this thread, it's long but there's a lot of information there.
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Unread postAuthor: warhead052 » Sat Jul 09, 2011 12:45 pm

Ok. How much recoil did you get for those cartridges? Was it enough to obtain a full auto mechanism some how?
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Unread postAuthor: jackssmirkingrevenge » Sat Jul 09, 2011 12:50 pm

warhead052 wrote:Ok. How much recoil did you get for those cartridges? Was it enough to obtain a full auto mechanism some how?


If it was, you would have read about.

The only way I managed to get something to cycle cartridges on a pneumatic is to keep the air supply and valve away from the cartridge itself:

http://www.spudfiles.com/forums/valvele ... 21364.html

http://www.spudfiles.com/forums/cartrid ... t7176.html
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Unread postAuthor: warhead052 » Sat Jul 09, 2011 12:52 pm

Ok. Makes sense. Well I have an idea. I just need to figure out how to make hammer valves. Cartridge + bolt action + hammer valve = semi auto rifle.
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