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4.5mm BB Nemesis Minigun, questions and updates

This area is for the discussion of BB or airsoft sub machine guns, and or other small arms such as pellets.
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Unread postAuthor: jackssmirkingrevenge » Mon May 30, 2011 2:30 am

Ok, now I care!

Looks good, assuming you have the tools and materials to mill that shape out it should work a treat!

LeMaudit wrote:A bit late, but all right... :roll:


How much could we make off a working 1mm gatling :D
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Unread postAuthor: 3VIL G3NIUS » Mon May 30, 2011 2:55 am

jackssmirkingrevenge wrote:Ok, now I care!

Looks good, assuming you have the tools and materials to mill that shape out it should work a treat!

LeMaudit wrote:A bit late, but all right... :roll:


How much could we make off a working 1mm gatling :D

Cool! haha.
Yeah I finally could be bothered actually modeling the mechanism. haha, as I said I had it sketched out old school before.

Sweet, yeah, I have access to all the tools needed for it. It's the sealing part that is hard, I think I have that worked out though, all I'd need is a lot of lube.

It isn't 100% accurate, the main inaccuracies being my laziness with the MOARair/drive pulley block (didn't do bevels and slopes) and the fact that the length of non-rotating barrel isn't meant to be too much more than 1 BB in length, to minimize double feeds.

Super high precision milling equipment+1mm BBs=pistol sized minigun!
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Unread postAuthor: 3VIL G3NIUS » Mon May 30, 2011 3:05 am

wyz2285 wrote:I'm going to build a simple one first :D , as a test. If all works well as worth to build a good one, I would continue :) . In my opinion if the barrels spin fast, each bb that comes out won't get much air to push them,even with high pressure I don't think it will be decently strong.
If the barrels spin slower, there will be more than one bb coming out from one barrel at once, witch will affect the accuracy, I think.
Anyway I'm glad to see people thinking more about this type os guns :)
Holp I can see one in action soon.

Imma plunge straight in the deep end. haha.
I've got some pictures up of how I'll get more air behind each BB, if made right, it would prevent double feeds, and allow as much air as possible.
Yeah, there are several important factors I'd need in a gun, ruthless appearance, moar dakka (although this can't be faster than a straight out vortex), and one-handedness to allow for dual-wielding. Why use 2 hands on one gun when you could hold twice as many! haha
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Unread postAuthor: wyz2285 » Mon May 30, 2011 2:05 pm

Well I have a "little" access to some tools(lathe, mill and computer control machines) but probably I won´t do it with big tools. As you are able to build this, I think I would stay watching until it´s finished, I really want to see it in action :wink: if it works, or at least worth all the hard working, I will make my, hopefully :)
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Unread postAuthor: Zeus » Mon May 30, 2011 6:08 pm

Reading this I've had a few cranial gaseous emissions. The thing with gatling/vulcan/minigun/etc systems is that the barrels rotate. When things rotate centrifugal force comes into play.

What I'm thinking is to have the magazine in the centre of the barrel assembly, from there have a projectile feed to each barrel, the projectiles are carried to each barrel by centrifugal force.

I'll leave how to get the air to each barrel to you clever people. Naturally there would be a detent at each barrel.

As I said this is a brain fart.

Edit: I was tired when I wrote that, I apologize for the horrid spelling mistakes.
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Last edited by Zeus on Mon May 30, 2011 8:13 pm, edited 1 time in total.
/sarcasm, /hyperbole
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Unread postAuthor: 3VIL G3NIUS » Mon May 30, 2011 6:53 pm

wyz2285 wrote:Well I have a "little" access to some tools(lathe, mill and computer control machines) but probably I won´t do it with big tools. As you are able to build this, I think I would stay watching until it´s finished, I really want to see it in action :wink: if it works, or at least worth all the hard working, I will make my, hopefully :)

Leave me to go through all the trial and error then. haha
I would see why you'd want to though, pretty much every design has been done before so there is information about making then work well. This design is the exception, there isn't any information on the building of this design of this gun. As JSR said it has only really been discussed.

Zeus wrote:Reading this I've had a few cranial gaseous emissions. The thing with gatling/vulcan/minigun/etc systems is that the barrels rotate. When things rotate centrifical force comes into play.

What I'm thinking is to have the magazine in the centre of the barrel assembly, from there have a projectile feed to each barrel, the projectiles are carried to each barrel by centrifical force.

I'll leave how to get the air to each barrel to you clever people. Naturally there would be a detent at each barrel.

As I said this is a brain fart.

Yes, this idea was mentioned in other threads, but I think it would have issues with loading them into the barrels. And the axle would have to go through the BB chamber, meaning more joints to seal.
I'm unfortunately not clever enough to work out how to get that mechanism to work, although it would most likely be capable of a high ROF and more power if done right.

With the vortex to spinning barrels design, the BB will wait against the machined aluminium plate held there by a small amount of air leakage (or small magnet if the air doesn't leak) and exit out of the next barrel that passes. This way the action of the barrel plate sealing against the short length of barrel coming off the vortex cap will act as a detent...hopefully.
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Unread postAuthor: wyz2285 » Tue May 31, 2011 2:22 am

If I built this, I think I would use a tube magazine to feed bbs to each barrel, and the air only comes out from the fire barrel, would make this easier I think
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Unread postAuthor: 3VIL G3NIUS » Tue May 31, 2011 2:54 am

wyz2285 wrote:If I built this, I think I would use a tube magazine to feed bbs to each barrel, and the air only comes out from the fire barrel, would make this easier I think

In the design I'm using the air does only exit the firing barrel, unless my O-ring seals don't work well (which I doubt if I do it right). It's just a vortex cap with barrels rotating in front of it.

I personally think that separate loading and firing positions just means more things to seal and more moving bits, but I could be wrong.
With a tube you'd need a really long one, as it would probably go through ammo pretty fast. If you could get it working and feeding fast enough it would definitely would be able to fire faster than the design I'm using.
The centrifugal loading system is a good idea, but I myself can't think of a way to get air into just the top barrel and seal it well.

I guess we'll have to find out how it goes! :)
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Unread postAuthor: wyz2285 » Tue May 31, 2011 1:20 pm

Well basically I agree with you but I saw this on here and his way of feeding is great, even though I didn't understand how it works so well :(
http://www.youtube.com/watch?v=tHP-CQXLga0
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Unread postAuthor: 3VIL G3NIUS » Wed Jun 01, 2011 12:11 am

wyz2285 wrote:Well basically I agree with you but I saw this on here and his way of feeding is great, even though I didn't understand how it works so well :(
http://www.youtube.com/watch?v=tHP-CQXLga0

looks very similar to http://www.spudfiles.com/forums/airsoft ... 21547.html
It is of really nice build quality and all, but I don't see the point at all if the barrels don't spin, there is even less point in having them in that case than the ones where the BBs fire out from the center of the spinning barrels.
IMO if you are going to make a minigun, then have the ammo fire out of each barrel, not from the center with the barrels spinning around it or having the barrels not spin at all.
I wanna know how this one works:
http://www.youtube.com/watch?v=6IFswvt5 ... re=related
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Unread postAuthor: wyz2285 » Wed Jun 01, 2011 6:09 am

I know how it works, it's a springer actually
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Unread postAuthor: 3VIL G3NIUS » Wed Jun 01, 2011 6:34 am

wyz2285 wrote:I know how it works, it's a springer actually

So just a super fast AEG? Damn, I'd have thought that it would wear out too fast with that. It would need one heck of a spring to accelerate the piston fast enough to complete it's cycle before it gets wound back again.
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Unread postAuthor: wyz2285 » Wed Jun 01, 2011 9:17 am

Well each barrel has it's spring, piston and reload system, the motor makes the barrels spin and each barrel reloads, the spring gets compressed than fire. As this http://www.youtube.com/watch?v=pRXZuKLsGnU&feature=related
What I think interesting it's this onehttp://www.youtube.com/watch?v=rhcHEs66H3Q
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Unread postAuthor: 3VIL G3NIUS » Wed Jun 01, 2011 8:55 pm

wyz2285 wrote:Well each barrel has it's spring, piston and reload system, the motor makes the barrels spin and each barrel reloads, the spring gets compressed than fire. As this http://www.youtube.com/watch?v=pRXZuKLsGnU&feature=related
What I think interesting it's this onehttp://www.youtube.com/watch?v=rhcHEs66H3Q

Oh, I thought you meant it had only one mechanism that fired each time a barrel passed. That would wear out so quickly. But yeah, that is a interesting way of doing it, and effective.

For that video the BBs appear to be firing out of the ceter of the barrels, and he says it runs off air (and a motor for the barrels) so I'm assuming it is a vortex with the ring of barrels spinning around the firing barrel. I love how he empties 2 full jars of BBs into it at the begining though. haha.
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Unread postAuthor: 3VIL G3NIUS » Thu Jun 02, 2011 10:45 pm

So I went to the hardware place today and checked out the plumbing section. After looking at all the cool stuff I decided I better see if the have some appropriate bits for the gun. I didn't buy anything yet, just wanted to see if it would go together well first.

Parts in pic as follows:

End cap on silver pipe: the end of the magazine, this will have the plunger/spring to feed the ammo.

Silver length of pipe: The magazine, they either have this or some super long one, hopefully I can find a compromise.

Right angle joint: so I can fit the mag in the case.

Small joining length of pipe: pretty much the vortex cap, it just give it a smooth inside.

Other end cap: the cap part of the vortex cap, it is threaded right up to the end so the joining length of pipe screws in to make a smooth surface for the BBs to spin around on.
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