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 69 users online :: 3 registered, 0 hidden and 66 guests


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

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

The Team
Administrators
Global Moderators
global_moderators.png CS

Help with co2 p90 / 1. post

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

Help with co2 p90 / 1. post

Unread postAuthor: pengeren » Wed Dec 22, 2010 6:41 pm

Hi, I'm new here and i need help with construction. I want to build p90, powered by co2. I need to know if this construction will work. Any idea how to build trigger ? :idea:


Image


Sorry for my bad English. :oops:
  • 0


pengeren
Private
Private
 
Posts: 3
Joined: Wed Dec 22, 2010 6:26 pm
Reputation: 0

Unread postAuthor: HunterT » Wed Dec 22, 2010 7:00 pm

I think if you went with that construction you could just cut out that vortex block entirely. You don't need it if you are feeding ammo in thru that clip thingy you got there.

You could just use a blowgun trigger for the trigger. Are you going to be getting your CO2 from a paintball tank or did you have something else in mind?

Perhaps you could do something like Imortal87 did here:
http://www.spudfiles.com/forums/rc-p240-vortex-cap-bbmg-p90-t12907.html.
  • 0

User avatar
HunterT
Staff Sergeant
Staff Sergeant
 
Posts: 113
Joined: Wed Jul 07, 2010 9:46 pm
Location: Just east of Russia
Reputation: 0

Unread postAuthor: saefroch » Wed Dec 22, 2010 7:12 pm

First off, that construction will not work, strictly according to the diagram. The springloaded magazine will just eject the bbs out the barrel or back towards the air feed if there is nothing to hold them in place. There is also a massive amount of dead volume.

Are you trying to make a vortex or a spring-fed design?
Are you trying for full auto or semi-auto?
Did you look through the BBMG/Strafer showcase?

I apologize if I seem mean. I'm honestly trying to help, but you've given us so little to go on.
  • 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: pengeren » Wed Dec 22, 2010 7:20 pm

I want to buy paintball tank 12oz. I looked to Imortal87's topic long time ago but I need to know how it look inside.
  • 0


pengeren
Private
Private
 
Posts: 3
Joined: Wed Dec 22, 2010 6:26 pm
Reputation: 0

Unread postAuthor: saefroch » Wed Dec 22, 2010 7:24 pm

A 12oz paintball tank can certainly be source of pressurized CO2. Did you read this? I think Immortal87's P-90 is a vortex, but I can't be sure.
  • 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: pengeren » Wed Dec 22, 2010 7:28 pm

But I have vortex in that. Or my vortex have bad construction ???

I tried to painted vortex like this but in 2d (b-mag style)

Image
Image
  • 0


pengeren
Private
Private
 
Posts: 3
Joined: Wed Dec 22, 2010 6:26 pm
Reputation: 0

Unread postAuthor: Gaderelguitarist » Wed Dec 22, 2010 7:40 pm

Yes that should work just fine. The bb on a spring is a type of detent. It allows for pressure to build more behind the round for a more powerful shot. A cloud chamber with your detent will give you similar results and be easier to construct. You may even be able to hide the cloud chamber in the stock instead of having a protruding chamber.

EDIT: For a trigger, you could create a trigger piece that has an extension bar that reaches back to a type of push button valve or blowgun mounted inside the gun. The trigger itself doesn't need to be the valve, it just needs to open it.
  • 0

Last edited by Gaderelguitarist on Thu Dec 23, 2010 12:50 am, edited 1 time in total.
so many muchness
User avatar
Gaderelguitarist
Colonel
Colonel
 
Posts: 580
Joined: Sat Aug 16, 2008 9:56 pm
Location: Columbia, MD
Reputation: 0

Sponsored

Sponsor
 


Unread postAuthor: saefroch » Wed Dec 22, 2010 7:44 pm

Ignore the stupidity that was here before.

EDIT: Just had a revelation. The BB on the spring isn't ammo, it's a detent. Wow... I guess it really is way past time to go to sleep.
  • 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: HunterT » Wed Dec 22, 2010 7:48 pm

Ooops...:oops: I thought that the bb on the spring was the magazine.
  • 0

User avatar
HunterT
Staff Sergeant
Staff Sergeant
 
Posts: 113
Joined: Wed Jul 07, 2010 9:46 pm
Location: Just east of Russia
Reputation: 0

Unread postAuthor: jakethebeast » Thu Dec 23, 2010 3:24 am

you people should get sleeped more than half hour in night! :D

that should work fine, the detent is going to slow the rpm down but thats good beacause BBMGs will come expensive at a time :D
  • 0

User avatar
jakethebeast
Brigadier General
Brigadier General
 
Posts: 934
Joined: Sat Jul 03, 2010 4:20 pm
Location: Jakes cave
Country: Finland (fi)
Reputation: 11

Unread postAuthor: jackssmirkingrevenge » Thu Dec 23, 2010 8:17 am

Here's how I would make it, I think an o-ring sandwiched in a threaded fitting is a better detent than a spring loaded BB to be honest as it restrics the BB but also seals off the barrel.
  • 0

Attachments
co2p90.jpg
co2p90.jpg (26.24 KiB) Viewed 2285 times
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

Unread postAuthor: Vincenzo » Thu Dec 23, 2010 11:13 am

@Jack, A blowgun will not hold the pressure of unregged co2 facing that way. When I tried, it either opens on it's own or stays open when you push it.
  • 0

more_eggs wrote:My teachers hated this one:
Teacher: "Matt, take your iPod out in class"
Me: "beg your pardon sir? I can't hear you, I'm listening to my iPod"
:P
User avatar
Vincenzo
Specialist
Specialist
 
Posts: 58
Joined: Mon Dec 06, 2010 6:50 pm
Reputation: 0

Unread postAuthor: Gaderelguitarist » Thu Dec 23, 2010 11:36 am

Vincenzo:

Telling JSR a reverse blowgun won't wortk is like telling Santa Claus that he makes presents. :D

I would think that Pengeren would want to reg the pressure down, or at least have that capability. However, I've not seen much evidence for what he intends this build for (airsoft, metal bbs).

Pengeren:

See how JSR worked out the trigger like I described? Now build it. :)
  • 0

so many muchness
User avatar
Gaderelguitarist
Colonel
Colonel
 
Posts: 580
Joined: Sat Aug 16, 2008 9:56 pm
Location: Columbia, MD
Reputation: 0

Unread postAuthor: Fnord » Thu Dec 23, 2010 11:51 am

@Jack, A blowgun will not hold the pressure of unregged co2 facing that way. When I tried, it either opens on it's own or stays open when you push it.



Agghh!!!

Ok, so in theory, some blowguns might work, but using something at 800psi that's only rated to 90psi is a bit stupid, if only because you're enclosing it in your hand at the time!.
Use a ball valve or a pressure washer handle. A pressure washes wouldn't fit well in a p90 though.
If you decide to regulate the pressure down a ball valve will add another layer of safety in case the reg fails.
  • 0

Image
User avatar
Fnord
Major General
Major General
 
Posts: 2244
Joined: Tue Feb 13, 2007 9:20 pm
Location: Pripyat
Reputation: 7

Unread postAuthor: Davidvaini » Thu Dec 23, 2010 3:58 pm

actually the RC-P240 was built with a D-Mag Style, just turned on its side.
  • 0

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

Next

Return to BB/Airsoft/Pellet Gun Discussion

Who is online

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

Reputation System ©'