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GB mortar burst disk

Post questions and info about pneumatic (compressed gas) powered cannons here. This includes discussion about valves, pipe types, compressors, alternate gas setups, and anything else relevant.
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Unread postAuthor: bigbob12345 » Wed Mar 19, 2008 9:57 pm

Yeah it would be awsome.
although Ill probably never do that as I am setting up my high school classes so I can get into a good college and get a nice paying job. And continue the familys richness:)

Edit: I was just thinking
why is my name bigbob? :?
Im not fat(im actually a breed of stick figure :D )
And my name is not bob, its scott
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Unread postAuthor: elitesniper » Wed Mar 19, 2008 10:00 pm

haha, my concilers have already come to set up my high school classes, my favorite elective class will be woodshop :) im aiming for UC Berkley :D
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Unread postAuthor: bigbob12345 » Wed Mar 19, 2008 10:05 pm

I wish the high school i will be going to had woodshop.
Well my elective that i picked for fun is engineering tech in which we get to learn the use of epoxy resins(aways useful for spudding) and do woodshop things and do metalworking things. Should be fun
I cant wait until high school next year its going to be so awsome

I just realized we have completely hijacked this thread but thats ok
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Unread postAuthor: elitesniper » Wed Mar 19, 2008 10:09 pm

yea me too, but were guna be freshmen :( aka:scrubs thats what they call us around here, 7th graders are srubs 8th graders are toliet washers 9th graders are srubs again :(
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Unread postAuthor: bigbob12345 » Wed Mar 19, 2008 10:14 pm

Ahh Im not worried about that.
if I get that crap directed to me Ill tell my 7ft tall friend to teach em a lesson :lol:

Edit: Im out
its getting late
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Last edited by bigbob12345 on Wed Mar 19, 2008 10:20 pm, edited 1 time in total.
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Unread postAuthor: elitesniper » Wed Mar 19, 2008 10:20 pm

Oh your name is scott :D cool, my name is Sean :D dam 7ft holy crap :shock:
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Unread postAuthor: bigbob12345 » Wed Mar 19, 2008 10:22 pm

And my last post of the night
He is more like 6.5ft tall but he towers over everybody.
And sean happens to be the name of this very tall friend of mine
thats weird
G night
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Unread postAuthor: Lentamentalisk » Wed Mar 19, 2008 11:09 pm

elitesniper wrote:Im aiming for UC Berkley :D


I live just a mile from UCB and have been there many a time. I can tell you UCB is not all its cracked up to be. Incoming freshmen classes are in the 100-400 student range, and its not unless you are one of the very smartest of your senior classes that you actually get to do interesting stuff in the lab like shoot electrons at near the speed of light...
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Unread postAuthor: Carlman » Thu Mar 20, 2008 12:22 am

ok guys enough is enough now, back onto topic, if you want a discussion use msn or PM people.
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Unread postAuthor: psycix » Thu Mar 20, 2008 9:32 am

elitesniper wrote:hell yeah, commercial grade pvc too that mean's large bore sch 80 :shock: :shock: you might even have :shock: access to sch 120 :shock:


WOW
:shock: :shock: :shock: :shock: :shock: :shock: :shock: :shock: :shock:
SHOCKED!


:P
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Unread postAuthor: bigbob12345 » Thu Mar 20, 2008 5:40 pm

Carlman wrote:ok guys enough is enough now, back onto topic, if you want a discussion use msn or PM people.


Sorry about all that
Ill have the 1.5in and 1in union results up in about an hour maybey less.
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Unread postAuthor: bigbob12345 » Fri Mar 21, 2008 10:58 pm

ok sorry for replying with the results so late
I promised it yesterday
but I finnally have them and the results were surprising
These were all fired of in a 1in union with standard pen used for the peircing

20psi
Image

40psi
Image

60psi(a lot better)
Image

80psi(seemed like a normal burst)
Image

100psi was not attempted as it would only get better
and for the 1.5in union one trial was done at 20psi and it seemed to burst normally as it would with air pressure.
and no more trials are needed as it will only get better
I will have the pic of the 1.5in disk up soon
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Unread postAuthor: Carlman » Sat Mar 22, 2008 7:15 am

thanks mate, that is what i thought would happen.

it will work better and better with pressure and union size :D scince i will be using a 2" union i sould be all good to go, no?
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Unread postAuthor: koolaidman » Wed Mar 26, 2008 9:54 pm

Gahh, Carlman you posted a diagram of this mortar idea months ago i remember. Here it is: http://www.spudfiles.com/forums/pneumat ... 12325.html . In there, i said id try it out for you you said "yes please do as it saves me having to do it lol, if it works then tell me! " . I did and forgot to tell you: http://www.spudfiles.com/forums/viewtop ... tml#148664. It works alright, and i do not have that leaking problem at all. It does at low pressures, but 1.5" at 60 psi- it not only rips the foil, but tears all of it off instantaneously. It might just be that youve got a small diameter and low pressure.
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