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 47 users online :: 5 registered, 0 hidden and 42 guests


Most users ever online was 218 on Wed Dec 07, 2016 6:58 pm

Registered users: anello, 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

Potential 'Flamethrower' (Backpack 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.
Sponsored 
  • Author
    Message

Potential 'Flamethrower' (Backpack BBMG)

Unread postAuthor: Zippster » Thu Oct 11, 2007 9:46 pm

Heya
I have a 600cubic inch / 2.6 gal / 9.8L / whatever backpack tank that I currently use as a mobile recharge for my small pvc airsoft 'shotgun' (shoot it up and it will rain airsoft pellets for a couple seconds). At about 90 PSI (compressor was on low - it should handle up to 130 ish), it took about 12 seconds to get down to 40 PSI w/ the charge valve full and the firing ball valve cracked. I was wondering if this was enough to turn into a feasible bbmg, cloud at first, and maybe vortex if I can get my friend's dad to machine one for me. Then I'd really have an airsoft flamethrower :twisted:
Feedback is well appreciated :)
  • 0

User avatar
Zippster
Sergeant
Sergeant
 
Posts: 80
Joined: Sun Sep 30, 2007 8:57 pm
Location: Austin, Texas - you'd better believe it
Reputation: 0

Unread postAuthor: trae08 » Thu Oct 11, 2007 10:16 pm

dosnt flamethrower somehow involve fire?
  • 0

Marvin the Martian: Where's the kaboom? There was supposed to be an earth-shattering kaboom!

Marvin the Martian: The Earth? Oh, the Earth will be gone in just a few seconds.

PCGUY wrote:Congrats, your the first donating member I have had to ban.
User avatar
trae08
Donating Member
Donating Member
 
Posts: 520
Joined: Sun Jul 09, 2006 2:14 pm
Location: florida
Reputation: 0

Unread postAuthor: ShowNoMercy » Thu Oct 11, 2007 10:17 pm

Hence the quotes around it, I think he wants to make a replica for use in air soft. I would just use a large C02 tank instead, it'd last longer and be less bulky.
  • 0

Jesus saves, no need to pray
The gates of pearl have turned to gold
It seems you've lost your way
User avatar
ShowNoMercy
Brigadier General
Brigadier General
 
Posts: 1094
Joined: Mon Mar 19, 2007 8:08 am
Location: Jersey Bitches!
Reputation: 0

Unread postAuthor: Zippster » Thu Oct 11, 2007 10:21 pm

My point is 'will it work for a bbmg?'
I just said 'flamethrower' b/c me & my friends call it 'flamethrower' so guess what it looks like
It being the tank

The 12 seconds was just a vague extrapolation, w/ a blowgun and the tiny barrel I'd imagine it'd last a lot longer.

And I'm completely clueless as to the whole C02 thing - especially how I would even get the stuff in the first place
  • 0

User avatar
Zippster
Sergeant
Sergeant
 
Posts: 80
Joined: Sun Sep 30, 2007 8:57 pm
Location: Austin, Texas - you'd better believe it
Reputation: 0

Unread postAuthor: ShowNoMercy » Thu Oct 11, 2007 10:23 pm

Well then maybe C02 inst for you, but I would think it would work although how well it would work I don't know.
  • 0

Jesus saves, no need to pray
The gates of pearl have turned to gold
It seems you've lost your way
User avatar
ShowNoMercy
Brigadier General
Brigadier General
 
Posts: 1094
Joined: Mon Mar 19, 2007 8:08 am
Location: Jersey Bitches!
Reputation: 0

Unread postAuthor: Zippster » Thu Oct 11, 2007 10:28 pm

Another thing - It's kind of a lot but here i go:

How does the size/shape of the chamber affect the fps/rof and all that, and the same for the ammount of airflow and speed?
If I spent 50 bucks on it and got something akin to a mini, then I'd be pissed.

PS.
Another one - how does all this change with a vortex?
  • 0

User avatar
Zippster
Sergeant
Sergeant
 
Posts: 80
Joined: Sun Sep 30, 2007 8:57 pm
Location: Austin, Texas - you'd better believe it
Reputation: 0

Unread postAuthor: jackssmirkingrevenge » Thu Oct 11, 2007 11:36 pm

The bigger the chamber, the less pressure develops (if you maintain the same flow) so you get a reduced velocity and rate of fire.

You can avoid this problem by having your BB chamber already pressurised like so:

Image

This way you can have as big a BB chamber as you want with no corresponding loss of performance, indeed since you have full air pressure available to the BBs from the start it will give you better performance than an ordinary blowgun fed strafer.
  • 0

User avatar
jackssmirkingrevenge
Donating Member
Donating Member
 
Posts: 24225
Joined: Thu Mar 15, 2007 11:28 pm
Country: Holy See (Vatican City State) (va)
Reputation: 66

Sponsored

Sponsor
 


Unread postAuthor: BOMBOMBOMB » Fri Oct 12, 2007 1:40 am

Hmm hwo can you obtain a c02 canister in australiaand then how do you refill it? because i like your idea of "flame thrower"
Cheers Nato
  • 0


BOMBOMBOMB
Sergeant
Sergeant
 
Posts: 95
Joined: Sun Oct 07, 2007 4:47 am
Location: Queensland Australia
Reputation: 0

Unread postAuthor: singularity » Sat Oct 13, 2007 9:48 am

the tank will work, i used to power my vortex off a five gallon tank at 100psi but it only lasted about 1500bbs (not much on a vortex). now i have a 5lb co2 tank powering it which lasts thousands of rounds (possibly up to 30,000). the tank is meant to pressurize beer kegs, shouldn't be that hard to find one (with a reg) in Aus
  • 0

be sure to check out my <a href="http://www.spudfiles.com/forums/ak-style-airsoft-vortex-gun-t10959.html">AK Styled Vortex Gun</a> and my <a href="http://www.spudfiles.com/forums/at-4-t9627.html">AT-4 Rocket</a>

upcoming projects... finalized clip fed BBMG and ball point pen sniper
User avatar
singularity
Brigadier General
Brigadier General
 
Posts: 982
Joined: Mon Jun 26, 2006 10:53 pm
Location: someplace
Reputation: 0

Unread postAuthor: BOMBOMBOMB » Sat Oct 13, 2007 8:20 pm

lol yea do you have to fill them up at a special place or is it possible to buy the refilling equipment???? I heard you have to go to a welding place
Cheers Nato
  • 0


BOMBOMBOMB
Sergeant
Sergeant
 
Posts: 95
Joined: Sun Oct 07, 2007 4:47 am
Location: Queensland Australia
Reputation: 0

Unread postAuthor: DYI » Sat Oct 13, 2007 9:03 pm

As far as I know, they are usually filled from bigger tanks which would be brought from wherever they manufacture the gas. I'm not completely sure on that, but it seems logical. It is possible to buy high pressure air compressors for various purposes. The cheapest ones will run up about 2-3 grand.

Most towns have some sort of compressed gas depot, usually in something like an auto parts store. Some larger cities actually have compressed gas supply stores where you buy directly from the company, but these may be hard to find. CO2 is one of the easiest things to get filled, due to the popularity of paintball. Places like Walmart or a paintball store usually fill CO2 tanks.

Due to this being a non-paintball tank, I don't know if those places would fill it, and the compressed gas company would want to inspect the tank first if they didn't sell it to you. The solution to this is to buy the tank from where you want to fill it. Even in small towns, they can ship in whatever size of tank for almost any gas you want, even things like hydrogen.
  • 0

Spudfiles' resident expert on all things that sail through the air at improbable speeds, trailing an incandescent wake of ionized air, dissociated polymers and metal oxides.
User avatar
DYI
Lieutenant General
Lieutenant General
 
Posts: 2861
Joined: Sat Jul 07, 2007 8:18 pm
Location: The People's Republic of Canuckistan
Country: Turks and Caicos Islands (tc)
Reputation: 9

Unread postAuthor: Zippster » Sat Oct 13, 2007 11:22 pm

Let me see if I've got this right:

Can you use C02 just like you would air? except the tank ofcourse. So would I just need a C02 tank and a regulator, then feed that to the bbmg? I know C02 is stored as a liquid inside the tank and evaporates, but would it pressurize a chamber?

Then once I have a tank, could I store it full?

And, I know I've asked a lot, but:

How does air-usage overall and pershot vary between a vortex and a cloud, and will those shots be stronger/faster/etc.?
  • 0

User avatar
Zippster
Sergeant
Sergeant
 
Posts: 80
Joined: Sun Sep 30, 2007 8:57 pm
Location: Austin, Texas - you'd better believe it
Reputation: 0

Return to BB/Airsoft/Pellet Gun Database

Who is online

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

Reputation System ©'