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Very First BBMG

Posted: Sun Aug 17, 2008 10:40 am
by Gaderelguitarist
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
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Trigger
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Barrel
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Plunger and Spring
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Vortex Block
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Hmm...i could mount a laser here (There's a hole in the grip)
Image

Posted: Sun Aug 17, 2008 10:47 am
by trollhameran
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.

Posted: Sun Aug 17, 2008 12:48 pm
by potatoflinger
That looks great! What do you run it with? (Air compressor, regulated CO2, etc.)

Posted: Sun Aug 17, 2008 12:52 pm
by Gaderelguitarist
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.

Posted: Tue Aug 19, 2008 2:02 am
by littlebro05
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.

Posted: Tue Aug 19, 2008 11:37 am
by Brian the brain
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!

Posted: Tue Aug 19, 2008 12:22 pm
by Gaderelguitarist
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

Posted: Tue Aug 19, 2008 1:01 pm
by Brian the brain
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!