Login    Register
User Information
Username:
Password:
We are a free and open
community, all are welcome.
Click here to Register
Sponsored
Who is online

In total there are 54 users online :: 5 registered, 0 hidden and 49 guests


Most users ever online was 218 on Wed Dec 07, 2016 6:58 pm

Registered users: Bing [Bot], Google [Bot], Majestic-12 [Bot], MSNbot Media, Yahoo [Bot] based on users active over the past 5 minutes

The Team
Administrators
Global Moderators
global_moderators.png CS

Marble MG ( UPDATED with video!!)

Built a pneumatic cannon? Then post it here! This section is for completed, finished cannons that you have built. Please include pictures and information.
Sponsored 
  • Author
    Message

Marble MG ( UPDATED with video!!)

Unread postAuthor: Brian the brain » Mon Aug 21, 2006 3:34 pm

Gun name: Marble MG by Brian the brain

Type: Pneumatic
Caliber: 16mm
Barrel lenght: Aprox 65 cm
Construction material: All metal
Max pressure: 16 bar
Reservoir : 4liter
Valve: Fire extinquisher valve ( high flow)
Power source: High pressure hand pump
Ammo: Marbles
Magazine capacity: 23 marbles ( configured like a bullpup)
R.O.F: Roughly 20 rpm
Sights: modified laser tool


It rips up drywall at 10 bar.My experience says it WILL rip up 1/2"plywood at 16 bar.The mag and rise tube restrict the marbles from piling up or passing each other.THis means I can load a slightly oversized marble as the last one to close off airflow when the gun is empty.So I waste no air when the mag is empty.
  • 0

Attachments
Marble MG finished 006.jpg
And here's me holding the gun.
Marble MG finished 005.jpg
Trigger
Marble MG finished 004.jpg
Front view showing laser sight.
Marble MG finished 003.jpg
View from the right.THe mag can be seen here.It's closed with a ballvalve( blue handle) for quick refill.
Marble MG finished 002.jpg
Nice close-up of the valve, trigger and laser sight.
Marble MG finished 001.jpg
The Marble MG.
Full auto.Featuring strap, 4 liter fire-extinguisher, laser sight.Magazine and "rise tube"are a first, I think.
Last edited by Brian the brain on Wed Aug 30, 2006 3:09 pm, edited 1 time in total.
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!!
User avatar
Brian the brain
Moderator
Moderator
 
Posts: 3494
Joined: Mon Dec 05, 2005 2:06 am
Location: Holland
Country: Netherlands (nl)
Reputation: 29

Unread postAuthor: Flinchy » Mon Aug 21, 2006 3:54 pm

very nice design. i really like how you used a fire extinguisher valve as your trigger. thats something very few people do. im tempted to use a fire extinguisher on a friend of mine to use up the CO2 just to get to the valve, as well as the metal tank as a resevoir. what is your estimated range with this puppy? and also do you have any idea as to the speed of the marbels when they fly out of the barrel?

-flinchy
  • 0

User avatar
Flinchy
Sergeant First Class
Sergeant First Class
 
Posts: 138
Joined: Tue Apr 11, 2006 6:38 pm
Location: Nifelheim
Reputation: 0

Unread postAuthor: Bluetooth » Mon Aug 21, 2006 4:00 pm

Thats a very cool marble gun and i agree with flinchy about the fire extinguisher valve.
  • 0

User avatar
Bluetooth
Brigadier General
Brigadier General
 
Posts: 863
Joined: Tue Jun 27, 2006 7:57 am
Reputation: 0

Unread postAuthor: saladtossser » Mon Aug 21, 2006 4:01 pm

if you got this bigger marble stuck in the gun on purpose, how do u get it out?
  • 0

"whoa... I thought pimpmann was black..."-pyromanic13
User avatar
saladtossser
Brigadier General
Brigadier General
 
Posts: 1234
Joined: Sat Mar 26, 2005 10:40 am
Location: Toronto
Reputation: 0

Unread postAuthor: M3NT4L » Mon Aug 21, 2006 5:45 pm

Wow thatd suck, i like this gun, mines is much simpler, i like the handle. If later on you have any ideas of what to do with a fire estinguisher i made a semi auto (easily upradable to full) golf ball shooter and a soda can shooter, FUN. Peace.
  • 0

Image
User avatar
M3NT4L
2nd Lieutenant
2nd Lieutenant
 
Posts: 239
Joined: Wed Jul 05, 2006 7:40 pm
Reputation: 0

Unread postAuthor: noname » Mon Aug 21, 2006 9:21 pm

That thing is definately badass man. Do you get a reasonable rate of fire?
  • 0

User avatar
noname
Lieutenant General
Lieutenant General
 
Posts: 2699
Joined: Mon Apr 10, 2006 9:19 pm
Location: Bay Area, CA
Country: United States (us)
Reputation: 9

Unread postAuthor: ProfessorAmadeus » Mon Aug 21, 2006 9:32 pm

R.O.F: Roughly 20 rpm" Thats your answer. That is a very nice gun. i have not seen to many with the bullpup design in mind.
  • 0

Insomniac wrote:Hey why am I a goose???? Why not somthing a little more awe inspireing, like an eagle or something? LOL

SOO CUTE!! OMG!! I COULD JUST LICK YOU!!
User avatar
ProfessorAmadeus
Brigadier General
Brigadier General
 
Posts: 1046
Joined: Fri Apr 28, 2006 5:39 pm
Location: texas
Reputation: 0

Sponsored

Sponsor
 


Unread postAuthor: noname » Mon Aug 21, 2006 9:54 pm

Oops. Didn't look at the specs really.......
  • 0

User avatar
noname
Lieutenant General
Lieutenant General
 
Posts: 2699
Joined: Mon Apr 10, 2006 9:19 pm
Location: Bay Area, CA
Country: United States (us)
Reputation: 9

Unread postAuthor: Brian the brain » Mon Aug 21, 2006 11:05 pm

The last marble doesn,t really get stuck.It just blocks the barrel inlet when pressurised, and drops back if I release the trigger.If not I can always poke it out muzzle-loader style using a rod.
i have no clue on the distance.I ve only done testshots and I want to retrieve the marbles to re-use them.
  • 0

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!!
User avatar
Brian the brain
Moderator
Moderator
 
Posts: 3494
Joined: Mon Dec 05, 2005 2:06 am
Location: Holland
Country: Netherlands (nl)
Reputation: 29

Unread postAuthor: )DEMON( » Tue Aug 22, 2006 7:56 am

Wow, that took my breath away. More brillience from Brian.
Tough compitition too.
Great job, I love the style of this cannon. You should add some sort of butt plate for looks and comfort.
  • 0

Forever dreaming...
User avatar
)DEMON(
Major General
Major General
 
Posts: 1391
Joined: Sun Mar 12, 2006 1:22 pm
Location: Johannesburg South Africa
Reputation: 0

Unread postAuthor: Brian the brain » Tue Aug 22, 2006 11:00 am

The back "rise tube" has soft rubber padding.
I could do it for looks, but I'm happy with it as it is.Only thing left to do is a silencer.
  • 0

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!!
User avatar
Brian the brain
Moderator
Moderator
 
Posts: 3494
Joined: Mon Dec 05, 2005 2:06 am
Location: Holland
Country: Netherlands (nl)
Reputation: 29

Unread postAuthor: Brian the brain » Thu Aug 24, 2006 1:55 pm

Holy crrrrrappp!!
I just did some more testing.At 13 bar this time.I had a sheet of cardboard as a target.The gun fired pretty loud, so the dog next door started barking.Not something I want to repeat, considering it's illegal here...

Because before I didn't have enough marbles, I only filled the mag up with 15.I bought me some more.I estimated I could fit 8 more in...To my surprise the mag can hold 30.
It took around 2 seconds before it emptied.Brrrrrp
Not like your regular strafer...Because of it's slower rate of fire it sounds more like a real machine gun!!

A couple of marbles came out shattered (hehehe).I counted about 5 smaller impact holes, and some even smaller ones with needle like shards in them.The rest were all nice round marble-holes.

The backing I put up consisted of plastic bags to take the speed out of the shots.I wouldn't want to get hit by a ricochet.Behind the bags was plywood.
Still the plywood got deep imprints, although none of the marbles went through.I guess the bags didn't take out all the speed.

It's not something that should fall into the wrong hands...It looked quite dangerous...buit really really cool hahaha.I love this thing!!

After I was done shooting, I went back in the house to find my wife pretty upset about the noise it made.She doesn't want the neighbours to think I'm firing off a machinegun.I did it inside my garage and she could hear it inside the house muuuuhahahhaa!!!
  • 0

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!!
User avatar
Brian the brain
Moderator
Moderator
 
Posts: 3494
Joined: Mon Dec 05, 2005 2:06 am
Location: Holland
Country: Netherlands (nl)
Reputation: 29

Unread postAuthor: Shrimphead » Thu Aug 24, 2006 4:21 pm

That's awesome! Could we get a video? I would love to see one.
  • 0

Controlled insanity = Genius
Life flies when you're being dumb.
User avatar
Shrimphead
Colonel
Colonel
 
Posts: 509
Joined: Thu Nov 17, 2005 7:42 pm
Reputation: 0

Unread postAuthor: noname » Thu Aug 24, 2006 4:24 pm

ROF is 20 rouds per minute or 15 per second? :D
  • 0

User avatar
noname
Lieutenant General
Lieutenant General
 
Posts: 2699
Joined: Mon Apr 10, 2006 9:19 pm
Location: Bay Area, CA
Country: United States (us)
Reputation: 9

Unread postAuthor: Brian the brain » Thu Aug 24, 2006 11:16 pm

RPM should have been rounds per second.
  • 0

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!!
User avatar
Brian the brain
Moderator
Moderator
 
Posts: 3494
Joined: Mon Dec 05, 2005 2:06 am
Location: Holland
Country: Netherlands (nl)
Reputation: 29

Next

Return to Pneumatic Cannon Database

Who is online

Registered users: Bing [Bot], Google [Bot], Majestic-12 [Bot], MSNbot Media, Yahoo [Bot]

Reputation System ©'