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First BBMG idea

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First BBMG idea

Unread postAuthor: Spitfire » Fri Jun 19, 2009 6:58 am

Hello all.

I am planning on makeing a BBMG, of Vortex Cap type.

I have an idea in my head of its basic shape.

What i want to know is if my idea shown below will work?
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Unread postAuthor: spudtyrrant » Fri Jun 19, 2009 7:06 am

the only fault i see is in the spring unless that design is set in stone you might as well make it gravity fed the only thing the spring will do is make reloading harder unless you really want that shape but besides that it should work just fine
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Unread postAuthor: inonickname » Fri Jun 19, 2009 7:39 am

Do you know what springs in BBMG's do? For ease of reloading the spring/plunger could be connected to the threaded cap he reloads through.

No problems really.
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Unread postAuthor: Spitfire » Fri Jun 19, 2009 7:47 am

I was thinking of adding a threaded cap onto the end. I am still figureing out a trigger system though as im not sure wether i am going to use air or CO2. However i'm leaning towards CO2.
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Unread postAuthor: jimmy101 » Fri Jun 19, 2009 11:46 am

I would put the air inlet at the bottom of the vortex instead of on the side.
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Unread postAuthor: Spitfire » Fri Jun 19, 2009 11:56 am

jimmy101 wrote:I would put the air inlet at the bottom of the vortex instead of on the side.


Please correct me if im wrong, but if the inlet was at the bottom of the vortex, then it would not create a vortex. Itthe air would run up into the BB Holder?
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Unread postAuthor: Davidvaini » Fri Jun 19, 2009 12:39 pm

this looks like the same setup for the RC-P240(first vortex cap BBMG).

As far as I can tell your air inlet is in the perfect place. (I think jimmy thought this is a regular vortex block setup and it isnt.)

Essentially the same thing as a D-Mag Style setup but turned on its side.(which works quite well.)

http://www.spudfiles.com/spud_wiki/inde ... x_cap_BBMG

As for the threaded cap on the end of the magazine.. It really does make it easier to load...
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Unread postAuthor: Spitfire » Sat Jun 20, 2009 3:47 am

Anouthe Question if you dont mind. Must the Barrel and air in be flush with the inside of the Cap as shown in 1.? Or Can it be either?

To me it makes more scence if it is flush.
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Unread postAuthor: inonickname » Sat Jun 20, 2009 5:18 am

It should be flush.

Edit:

The barrel and inlet should be inline with the top/side of the circle. Just say if you don't know what I mean.
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Unread postAuthor: jimmy101 » Sat Jun 20, 2009 12:55 pm

The top edge of the barrel should be aligned with the top edge of the vortex hole (tangental to the vortex hole).

I would put the air inlet parallel with the barrel and with the inlet bottom tangental to the bottom of the vortex hole.

IIRC, Latke put his air inlet dead center on the bottom of the vortex.
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Unread postAuthor: Spitfire » Sat Jun 20, 2009 3:48 pm

jimmy101 wrote:The top edge of the barrel should be aligned with the top edge of the vortex hole (tangental to the vortex hole).

I would put the air inlet parallel with the barrel and with the inlet bottom tangental to the bottom of the vortex hole.


I am not sure what you mean by tangental
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Unread postAuthor: Davidvaini » Sat Jun 20, 2009 4:11 pm

Spitfire wrote:I am not sure what you mean by tangental


he means on the same tangent.

Which means that they are pretty much aligned with each other.

I would recommend that you do in the picture above having it flush. as it would allow for better feeding and therfor better efficiency.
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Unread postAuthor: jimmy101 » Sat Jun 20, 2009 4:49 pm

Like this;
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Unread postAuthor: Spitfire » Sun Jun 21, 2009 5:53 am

Thanks for the help. The only trouble is now to find Parts in this part of the world.
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