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brianthebrains sawnoff riot gun replica

Built a pneumatic cannon? Then post it here! This section is for completed, finished cannons that you have built. Please include pictures and information.
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Unread postAuthor: MrCrowley » Fri Aug 11, 2006 7:37 pm

gorrila99 your sig that says "i wish i had a better sig" someone on the spudtech forums has the same sig :lol:
im just happy in NZ bbs and PBs are legal :D
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Unread postAuthor: killagorrila99 » Mon Aug 14, 2006 9:00 pm

i have since moved on from the days of wanting a better sig. look at it now.


wow i just realised this topic is 4 pages long :D i feel proud
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Unread postAuthor: killagorrila99 » Thu Sep 14, 2006 5:53 am

HAHA OMFG UPDATE! I made a bigger version and it shot through a peice of metal!!!!!!!!!!! AGHH AMAZING!
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Unread postAuthor: Jolly Roger » Thu Sep 14, 2006 10:20 am

Edit
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Last edited by Jolly Roger on Tue Apr 21, 2009 4:34 am, edited 1 time in total.
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Unread postAuthor: )DEMON( » Thu Sep 14, 2006 10:38 am

Come on!!, where's all the pics of the updates?!
Your shotgun sounds really awsome. What do you mean by bigger version?, an new cannon?
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Unread postAuthor: Brian the brain » Thu Sep 14, 2006 10:42 am

Maybe a longer barrel and chamber.
I would really like to see.
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Gun Freak wrote:
Oh my friggin god stop being so awesome, that thing is pure kick ass. Most innovative and creative pneumatic that the files have ever come by!

Can't ask for a better compliment!!
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Unread postAuthor: killagorrila99 » Sun Sep 17, 2006 3:23 am

OK sorry for no pics, My sis took the camera to her year 12 formal, and I never got it back ( this happened 2 bloody days ago) The chamber is a 12 inch long peice of 32mm pipe (stolen from my mate's shotgun MOOHAHAHA!) and the barrel is a 30 inch peice of copper half inch, pics an diagrams soon!
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Unread postAuthor: CpTn_lAw » Sun Sep 17, 2006 5:04 am

Nice cannon killagorrila!! pretty powerful from what you've said...but, if you still bring your cannon up to 40 bars....be very careful with a copper barrel...copper dislocates at 35 bars during a small amount of time. galvanized steel pipe is much more likely cuz it holds 80 bars max. But inside the pipe is a small juncture formation which isn't suitable for barrels. so you could use a Aluminium barrel, with 1/2" bore, and a wall thick ness of 1/4" at least. that would be the best...here a pic of my pneumatic coaxial piston, it's 8mm OD copper barrel (perfect fit for airsoft BB's) and 1/2" gal. steel pipe as a chamber. got it up to 15 bars and made a big 320m/s with a 0.12g BBImage
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Unread postAuthor: killagorrila99 » Sun Sep 17, 2006 5:32 am

NICE!!!!!!!!!!!!!!!!!!!! damage pics?
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Unread postAuthor: Brian the brain » Sun Sep 17, 2006 3:34 pm

Hold up...Galvanised can hold 80 bars??

Just how sure are you of that??
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Gun Freak wrote:
Oh my friggin god stop being so awesome, that thing is pure kick ass. Most innovative and creative pneumatic that the files have ever come by!

Can't ask for a better compliment!!
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Unread postAuthor: schmanman » Sun Sep 17, 2006 6:10 pm

brian, over the last month or two It seems replicas upon replicas of your shotgun have been pouring out, and many guns have used your ideas. It seems you have become a celebrity on this site. how does it feel? lol, no I'm just kidding, but seriously, why does everything using any metal, or a small piston valve get called a shotgun replica?
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Unread postAuthor: Brian the brain » Sun Sep 17, 2006 11:18 pm

I've had Bruce Willis ask me that same question....


Now, about being a celebrity...
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Gun Freak wrote:
Oh my friggin god stop being so awesome, that thing is pure kick ass. Most innovative and creative pneumatic that the files have ever come by!

Can't ask for a better compliment!!
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Unread postAuthor: schmanman » Mon Sep 18, 2006 5:11 am

lol. I was just kidding.
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Unread postAuthor: CpTn_lAw » Mon Sep 18, 2006 5:34 am

sorry haven't got damage pics ....hey, i'm not copying BTB's work, i worship his work, and that's the reason i wont copy it!!
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Unread postAuthor: Brian the brain » Mon Sep 18, 2006 2:35 pm

Pfff...is it getting hot in here or what??

Everybody is free to do with my designs as they please.
Copy them and I feel honored.Improve them, change them, cut them up, enlarge them.
Whatever.
I don't mind.
If anyone makes an improvement I'll probably copy that sometime too...
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Gun Freak wrote:
Oh my friggin god stop being so awesome, that thing is pure kick ass. Most innovative and creative pneumatic that the files have ever come by!

Can't ask for a better compliment!!
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