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Very First BBMG

Built a BB Machine Gun? Then post it here! This section is for completed, finished cannons that you have built. Please include pictures and information.
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Very First BBMG

Unread postAuthor: Gaderelguitarist » Sun Aug 17, 2008 10:40 am

Before making this i had been dabbling in pneumatics for about a month. I made 4 mussel loading cannons and one breech loader. However i am most impressed with this BBMG (inspired by a typical cloud design).

Not only does its ROF induce violent crapping of the pants, its compact in design (Which is a big plus for skirmishes).
I used 1.25" PVC for the ammo chamber with two end caps on either side.
The Vortex Block is simply a slice of 3/4" PVC that i drilled for an air inlet and for the barrel, which is from a broken airsoft gun. The outer barrel is from another airsoft gun. The pistol grip is just a chopped up piece of 3/4" PVC. For the spring i coiled a wire coat hanger around a 1/2" PVC rod. I'd rate its exit velocity at about 260-300 fps with at least 100 rps

Btw, i only used tape in areas where i wanted a superior gripping surface.

All i have now are pictures, but I'm expecting to get a video up by later today.
Finished BBMG
Image

Trigger
Image

Barrel
Image

Plunger and Spring
Image

Vortex Block
Image

Hmm...i could mount a laser here (There's a hole in the grip)
Image
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Last edited by Gaderelguitarist on Sun Aug 17, 2008 10:47 am, edited 1 time in total.
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Unread postAuthor: trollhameran » Sun Aug 17, 2008 10:47 am

Thats a very clean first bbmg, my first cloud was a juice bottle with a bit of pipe stuck one end and a blowgun the other end.
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Unread postAuthor: potatoflinger » Sun Aug 17, 2008 12:48 pm

That looks great! What do you run it with? (Air compressor, regulated CO2, etc.)
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Unread postAuthor: Gaderelguitarist » Sun Aug 17, 2008 12:52 pm

As of now I'm using an air compressor at about 120 PSI.

I would like to create some more portable alternatives though.
I might build a backpack tank or just use CO2 in the future.
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Unread postAuthor: littlebro05 » Tue Aug 19, 2008 2:02 am

trollhameran wrote:Thats a very clean first bbmg, my first cloud was a juice bottle with a bit of pipe stuck one end and a blowgun the other end.


ROFL!! Same here! My first BBMG was a prototype and it was made with threaded end caps... which were actually sawn off ice tea bottle lids.

But I'm going to improve from that with hop up and removable magazine :D.
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Unread postAuthor: Brian the brain » Tue Aug 19, 2008 11:37 am

Very well thought up design and apart from the tape it's very clean.
Tape is just not a very "clean"material, that's all.


You stepped into the hobby at a higher level than most!

Congrats!
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Unread postAuthor: Gaderelguitarist » Tue Aug 19, 2008 12:22 pm

Brian the brain wrote:
You stepped into the hobby at a higher level than most!




Ha ha maybe, but that doesn't change the fact that I'm still feeling around in the dark.

http://www.neospud.com's designs have certainly shed some light on what i should be doing however.

I might even try to commission him to build for me one of those Mark III BBMGs
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Unread postAuthor: Brian the brain » Tue Aug 19, 2008 1:01 pm

oh but one must never stop feeling around in the dark, if you do , you know ýou're done for...


Neospud is the king of bbmg's as far as i'm concerned.
He set the standard.


Although Takerlabs did so before him, the plunger idea was another great step forward in bbmg-design, now making Takerlabs bottomfeeder obsolete.

My deathray mp ( unregged CO2 bbmg) could not have been without Neospuds great work.
I see you also try to achieve his clean style of constuction.
Again, great job!
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