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 73 users online :: 4 registered, 0 hidden and 69 guests


Most users ever online was 155 on Mon Aug 15, 2016 1:40 am

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

The Team
Administrators
Global Moderators
global_moderators.png CS

Vortex block hole

This area is for the discussion of BB or airsoft sub machine guns, and or other small arms such as pellets.
Sponsored 
  • Author
    Message

Unread postAuthor: Davidvaini » Wed May 19, 2010 2:42 pm

from my expierence, if you have a 3/4" full vortex VS. a 3/4" half, the ROF is not as high..

Size of the hole will make a difference however..

ROF will be different between a 3/4" full vortex and a 1/2" full vortex.
And of course ROF will be different between a 3/4" full vortex and a 1/2" half vortex.

There are many different setups, but in theory and in my own personal tests a full vortex should have a higher ROF and more effeicency since it helps the BBs that miss the first time to get back around for a second try... otherwise they miss and then go down adding more time in order for them to get back into the air stream.

and more time you have in that equation the more Air you have going out the barrel without any BBs.
  • 0

User avatar
Davidvaini
Major General
Major General
 
Posts: 1315
Joined: Tue May 29, 2007 8:58 pm
Reputation: 0

Unread postAuthor: saefroch » Wed May 19, 2010 2:54 pm

But if you take it down to a quarter like I did, shouldn't there be a net efficiency gain, since the entire block is only the OD of the barrel, and every BB that falls into the air stream is kicked out the barrel, with nowhere else to go? Wouldn't the only limiting factor to ROF be the rate at which BBs are introduced into the air stream? Or am I missing out on the acceleration that is achieved when the BBs miss the barrel and go around the chamber again?
  • 0

User avatar
saefroch
Major General
Major General
 
Posts: 1679
Joined: Mon Jun 08, 2009 8:47 am
Location: U.S.A.- See Map
Country: United States (us)
Reputation: 0

Unread postAuthor: Davidvaini » Wed May 19, 2010 3:01 pm

yes like I said above ROF is dependent on the size of hole as well as some other things.

If its only the size of the barrel then the BB doesn't have anywhere to go and the efficiency is increased. What I am saying is if that design above was a 3/4" it would not be as effective as a 3/4" full vortex.
  • 0

User avatar
Davidvaini
Major General
Major General
 
Posts: 1315
Joined: Tue May 29, 2007 8:58 pm
Reputation: 0

Unread postAuthor: Gun Freak » Wed May 19, 2010 5:31 pm

Ok I started my block, it looks like this. Complete N00b to bbmg's... what side does the barrel go on?
Image
  • 0

OG Anti-Hybrid
One man's trash is a true Spudder's treasure!
Golf Ball Cannon "Superna"M16 BBMGPengunHammer Valve Airsoft SniperHigh Pressure .22 Coax
Holy Shat!
User avatar
Gun Freak
Lieutenant General
Lieutenant General
 
Posts: 4969
Joined: Mon Jan 25, 2010 4:38 pm
Location: Florida
Country: United States (us)
Reputation: 11

Unread postAuthor: irisher » Wed May 19, 2010 6:10 pm

Image
This should help.
  • 0

User avatar
irisher
Lieutenant Colonel
Lieutenant Colonel
 
Posts: 420
Joined: Mon Dec 29, 2008 2:53 am
Reputation: 0

Unread postAuthor: Gun Freak » Wed May 19, 2010 6:20 pm

Thanks so much, exactly what I was looking for.
  • 0

OG Anti-Hybrid
One man's trash is a true Spudder's treasure!
Golf Ball Cannon "Superna"M16 BBMGPengunHammer Valve Airsoft SniperHigh Pressure .22 Coax
Holy Shat!
User avatar
Gun Freak
Lieutenant General
Lieutenant General
 
Posts: 4969
Joined: Mon Jan 25, 2010 4:38 pm
Location: Florida
Country: United States (us)
Reputation: 11

Unread postAuthor: psycix » Sun May 23, 2010 5:10 am

1/2 circle just doesn't work for a vortex. Neither does 3/4.
Even if you have 99/100th of a circle, it still isn't a vortex. The BBs need to be able to spin around in the circle without bumping into a wall. You need a full circle for this effect, so that they can roll around without losing their speed.

Partial vortexes don't exist and are clouds with a smooth breech.



A random idea: Would the width of the vortex matter?
And how about a groove on the inside to guide the BBs even better into the barrel.
  • 0

Till the day I'm dieing, I'll keep them spuddies flying, 'cause I can!

Spudfiles steam group, join!
User avatar
psycix
Donating Member
Donating Member
 
Posts: 3684
Joined: Mon Jun 25, 2007 7:12 am
Location: The Netherlands
Reputation: 0

Sponsored

Sponsor
 


Unread postAuthor: saefroch » Sun May 23, 2010 11:21 am

Well according to how you have defined a vortex, the width of a vortex block does matter, since it must be significantly greater than the BB to allow the BBs to re-circulate after they miss the barrel, which inevitably happens with any design that fits your definition of a "vortex" or a "cloud".

I bet a groove on the inside would increase ROF if you can come up with some design that manages to feed the BBs into the vortex in a straight line... but I'm not sure if you can do that based on your above definition. If the BBs are just fed in from the sides of the block I doubt they would really catch into the groove with all the turbulence.

EDIT: Do we have a high-speed vid of a clear vortex block construction in operation? I know I've seen one of a cloud, but not sure if there's one of a vortex.

Now, if you could feed the BBs into a full vortex block from a port that is parallel with the barrel but on the bottom of the block, it might be possible to put a groove in to the inside of the block for the BBs to travel in... but then that is no longer a "vortex" because the BBs do not re-circulate, they just travel directly from the feed into the air stream then out the barrel, and you might as well cut out the unused 3/4 of the block and call it something different.
  • 0

User avatar
saefroch
Major General
Major General
 
Posts: 1679
Joined: Mon Jun 08, 2009 8:47 am
Location: U.S.A.- See Map
Country: United States (us)
Reputation: 0

Previous

Return to BB/Airsoft/Pellet Gun Discussion

Who is online

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

cron
Reputation System ©'