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

Unread postPosted: Tue Jul 01, 2008 9:56 pm
Author: VH_man
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.....

Unread postPosted: Tue Jul 01, 2008 9:59 pm
Author: rp181
yaa, excepts i accedently shot my self (my finger was barely in the jet) at 40 PSI, it hurt =p

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

Unread postPosted: Tue Jul 01, 2008 10:00 pm
Author: VH_man
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.

Unread postPosted: Tue Jul 01, 2008 10:01 pm
Author: STHORNE
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

Unread postPosted: Tue Jul 01, 2008 10:04 pm
Author: Fnord
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. :)

Unread postPosted: Tue Jul 01, 2008 10:05 pm
Author: VH_man
hahaha i just realized the air blast also blew up a lightbulb in the adjacent box....... :D

EDIT: this cannon is getting a muzzlebrake......

Unread postPosted: Tue Jul 01, 2008 10:21 pm
Author: SEAKING9006
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.

Unread postPosted: Tue Jul 01, 2008 10:23 pm
Author: VH_man
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.....

Unread postPosted: Tue Jul 01, 2008 10:29 pm
Author: SEAKING9006
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...

Unread postPosted: Tue Jul 01, 2008 10:30 pm
Author: VH_man
haha. wow. this cannon is exiting me. i need to get a damage shot or two before i post it though.

Unread postPosted: Wed Jul 02, 2008 4:30 am
Author: psycix
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.

Unread postPosted: Wed Jul 02, 2008 4:45 am
Author: SpudFarm
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*

Unread postPosted: Wed Jul 02, 2008 6:32 am
Author: Ragnarok
Doesn't surprise me.
I get a considerable amount of recoil from blank shots at 300 psi, and that energy has to go somewhere.

Unread postPosted: Wed Jul 02, 2008 7:15 am
Author: Sticky_Tape
The hole looks like it is a piece of green rubber glued to cardboard but I know it is a hole pretty cool.