Holy... Crap... I didnt knolw you could do this?!

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VH_man
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Tue Jul 01, 2008 9:56 pm

Well, i was doing pressure tests of my high-pressure marble gun (soon to be posted) and i managed to get to 300 PSI without my sealing face popping. (in fact i think i have those issues figured out. To release the pressure, i aimed at a cardboard box and fired. To my suprise, this happened:

Image

at first glance, i was like "EEEEKKK THERE WAS A MARBLE IN THE BARREL" because first off, it was inside, and second off, the wall behind it was my parent's bedroom. (not smart i know..... dont call me out on it ok?) but on further inspection, there was only a hole in one piece of cardboard..... and then i realized that THE JET OF AIR PRESSURE PUNCHED A HOLE IN THE CARDBOARD!!!!!!!

has anyone ever done this before? and if you dont believe me ill make another video of this tomorrow. its quite the interesting pheonomena.....
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rp181
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Tue Jul 01, 2008 9:59 pm

yaa, excepts i accedently shot my self (my finger was barely in the jet) at 40 PSI, it hurt =p
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elitesniper
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Tue Jul 01, 2008 10:00 pm

yeah, thats pretty normal, with big blue I was able to rip apart a coke can at 80psi :wink:
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VH_man
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Tue Jul 01, 2008 10:00 pm

BUT THE HOLE!!! lol.

sorry im a little exited by this. i cant wait to see what my lead slug does out of this badboy....... and yes i will post it.
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STHORNE
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Tue Jul 01, 2008 10:01 pm

yeah, I've had that happen a couple times with just a modified air horn.

can't say the cardboard was relatively thick but the concept was the same.

but yeah, a video would be nice, looks like some damaging.....air lol
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Fnord
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Tue Jul 01, 2008 10:04 pm

I've accidentally blown the entire top layer of plastic off a table mat and caused all kinds of small objects to fly everywhere by blank firing a hybrid indoors. I wasn't even aiming at the mat; it was about 10" below the barrel.

Oh, and that's a nice round hole for just air. :)
Last edited by Fnord on Tue Jul 01, 2008 10:07 pm, edited 2 times in total.
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VH_man
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Tue Jul 01, 2008 10:05 pm

hahaha i just realized the air blast also blew up a lightbulb in the adjacent box....... :D

EDIT: this cannon is getting a muzzlebrake......
SEAKING9006
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Tue Jul 01, 2008 10:21 pm

This reminds me of the time i destroyed my glass light cover on my ceiling fan with an airsoft pistol.... Hahaha, that thing was the best.
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VH_man
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Tue Jul 01, 2008 10:23 pm

haha one time one of those fell just by itself about a second after i fired my air rifle...... it took my mom about 2 days to figure out i didnt actually shoot it. she went as far as to re-construct the peices.....
SEAKING9006
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Tue Jul 01, 2008 10:29 pm

I only shot off half, so I turned it around. The next day, I dug a spare out of the garage and replaced it. At least, I THINK that's what I did..... I can't really remember...
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CA3 PDAB Airburst Cannon

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VH_man
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Tue Jul 01, 2008 10:30 pm

haha. wow. this cannon is exiting me. i need to get a damage shot or two before i post it though.
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psycix
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Wed Jul 02, 2008 4:30 am

Air has also mass, and a blank shot gives off alot of high-velocity air. And if the air has enough kinetic energy, it just goes through.
You can also do this with fluids, think of those water-cutting machines which cut trough thick steel plates with just water.
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SpudFarm
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Wed Jul 02, 2008 4:45 am

i use to but my finger infront of the 150psi air jet, it has some force to it.

anyway: "I'm loving it" *hmm mabe i should get a pizza*
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Ragnarok
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Wed Jul 02, 2008 6:32 am

Doesn't surprise me.
I get a considerable amount of recoil from blank shots at 300 psi, and that energy has to go somewhere.
Does that thing kinda look like a big cat to you?
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Sticky_Tape
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Wed Jul 02, 2008 7:15 am

The hole looks like it is a piece of green rubber glued to cardboard but I know it is a hole pretty cool.
You can tell how awesome a cannon is by the pressure used.
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