Pics Update 1/2" copper cannon

[MrCrowley]

Is that animation still holding up alright?

Nice fridge compressor....i'm jealous.

[Lentamentalisk]

The animation is Fabulous! I put you in the credits at the end of my presentation, also just for kicks, I added this:
not sure how to embed videos, so its just a link (propane and a balloon = fun)
http://s229.photobucket.com/albums/ee58 ... CT4284.flv

[Lentamentalisk]

My presentation went great! My teacher liked it, and my classmates were very impressed.

When I got home I decided to go for serious penetration.
I made this slug ages ago out of a bolt and some nuts, and decided to test it against 1/2" plywood


First entry hole


First exit hole


Second entry hole


Second exit hole


Third entry hole


third exit hole


Then the recoil:
Before:


After:


That cannon was mounted in their pretty tightly, and that doesn't even show how much the whole contraption kicked back.

[Lentamentalisk]

Update:
Triple post!
Just shot a penny with a needle.
FUN!




Boom! Head shot. Oh no! They got Lincoln!
right in the jaw... Ouch!

[THUNDERLORD]

Great pics and post.
It's good you have a chronograph too.
Glad to hear your demo went well.
I meant to suggest before that you could shoot something if it didn't 8)

[Lentamentalisk]

some very fun and interesting updates I have here.

First of all, I found that my fridge compressor can easily get up to 600psi, it was just starting to slow down when it got to the top of my new gauge.

As for the little metal slug I shot before, I raised the pressure from 300 to 400, and got it cleanly through 4 pieces of plywood this time.

First entry

First exit

Second entry

Second exit

Third entry

Third exit

Fourth entry

Fourth exit

Attempt at a fifth puncture


Then I took that sharpened wooden dowel that I already showed you guys, and shot it at a empty can of pinapple. That little piece of wood went straight through both sides of the tin can, and sent the can flying 37' back, all the way to the end of my yard, where it got stopped by the blackberry bushes.

Entry

exit

[VH_man]

BTW, just a thought:

i have found that when you are doing barrel ---> Fittings that wont take pressure, you can just use superglue. For some reason superglue sticks REALLY WELL to copper. Its just a little easier than sweating the joints.

[Lentamentalisk]

It is much messier than sweating, and makes it look terrible, though it does require less setup. However, the chances are that if you are sweating something on your barrel, you will also be sweating something that takes pressure, so there is no extra mess, and it is usable in under 5 minutes, as opposed to 30min or what ever.

[blind909]

Sweet cannon, that is a nice penetrating slug too!

[Lentamentalisk]

My friend came over and we had some fun shooting cans with and without ammo.
http://s229.photobucket.com/albums/ee58 ... CT4566.flv
http://s229.photobucket.com/albums/ee58 ... CT4567.flv
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[ALIHISGREAT]

nice cannon, but the spring in the QEV should definitly not be neccesary and is probably harming performance.

[Lentamentalisk]

thanks, but no. It didn't work without it... as I said, I added an improv spring because it didn't seat on its own. It has no reason to seat if it just sits loosely in there and no pressure builds up behind it, because it all flows past it. Believe me, I would remove it if I could, as I am a total efficiency freak, but I can't.

[BlackH]

DUDE that coin shot is insane hehehehehehehe

[Lentamentalisk]

ya, I have a coin on a pin on my cork board

[zach12]

nice gun. i love your coin slugs. LEATHEL!!! lol.