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 58 users online :: 3 registered, 0 hidden and 55 guests


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

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

The Team
Administrators
Global Moderators
global_moderators.png CS

auto combustion. wil this work?

Post questions and info about combustion (flammable vapor) powered cannons here. This includes discussion about fuels, ratios, ignition systems, safety, and anything else relevant.
Sponsored 
  • Author
    Message

auto combustion. wil this work?

Unread postAuthor: jean » Sun Nov 06, 2011 6:25 am

hi tell me what you think please. will this work?

i edit an new version
  • 0

Attachments
1212123.JPG
1212123.JPG (31.98 KiB) Viewed 855 times
Last edited by jean on Sun Nov 06, 2011 10:07 am, edited 1 time in total.

jean
Staff Sergeant
Staff Sergeant
 
Posts: 125
Joined: Thu Dec 13, 2007 12:23 pm
Reputation: 0

Unread postAuthor: wyz2285 » Sun Nov 06, 2011 8:22 am

Lol I didn't understand your diagram, but even through that it won't work, first the "butane in "port won't allow any butane in,probably you draw the one way valve in the wrong direction. The rest of o-rings I don't understand any of them, I don't see how the reload mechanism work either.
  • 0

User avatar
wyz2285
Major General
Major General
 
Posts: 2244
Joined: Sat Mar 06, 2010 7:50 am
Location: Porto, Portugal
Country: Portugal (pt)
Reputation: 12

Unread postAuthor: jean » Sun Nov 06, 2011 8:45 am

thanks wyz2285

well the checkvalve is actually a hammer valve.
the greenpart is the moving part.
the orings are glued to the green part.

by
  • 0


jean
Staff Sergeant
Staff Sergeant
 
Posts: 125
Joined: Thu Dec 13, 2007 12:23 pm
Reputation: 0

Unread postAuthor: wyz2285 » Sun Nov 06, 2011 9:09 am

This is what I have understand so far:
  • 0

Attachments
Sem Título.png
User avatar
wyz2285
Major General
Major General
 
Posts: 2244
Joined: Sat Mar 06, 2010 7:50 am
Location: Porto, Portugal
Country: Portugal (pt)
Reputation: 12

Unread postAuthor: jean » Sun Nov 06, 2011 10:00 am

ok i am try to describe (ah i missed one green disk in my diagram i edit that)

before you do the first shoot you have to cock the green part (to the left side)
ok
step 1
-the green disk number 1 (right to left) displace the air in the chamber through the gap between the barrel (also green) and the second grey disk
the holes in the first grey disk allow air come in and out so the green part doesn't suck adhere)
-load new ammo
-the thin piston reach the valve and let the butane behind the second small o-ring and stay because the hole (you ask) at atmospheric pressure
-the first small o-ring is to doesn't allow butane reach the chamber
-the big (left) spring is compressed

step 2
-the compressed spring push the green part back
-the chamber fills up with fresh air through the gap
-the small piston push metered butane in the chamber
(now i also added a little thing to the diagram)

step 3
-fire the spark
-the bb/ammo goes forward and left the small holes in the barrle
-the combustion gasses reaches the second and third chamber alias cylinder and pushes the complete green part against the sping and the cycle can begin new


by
  • 0


jean
Staff Sergeant
Staff Sergeant
 
Posts: 125
Joined: Thu Dec 13, 2007 12:23 pm
Reputation: 0

Unread postAuthor: wyz2285 » Sun Nov 06, 2011 10:24 am

LOL good luck with it :lol:
You need a lath and mill at least to make all these parts, probably you will need a CNC.
Why not just use air? I know some combustion paintball guns, but airsoft? with a small chamber, high pressure air it´s better than combustion, unless you make it hybrid (witch it´s even more work).
  • 0

User avatar
wyz2285
Major General
Major General
 
Posts: 2244
Joined: Sat Mar 06, 2010 7:50 am
Location: Porto, Portugal
Country: Portugal (pt)
Reputation: 12

Unread postAuthor: jean » Sun Nov 06, 2011 10:39 am

ok maybe scale it up to 4 inch dia

but will the principle work?
coll down ,leaks . open breach wile filling the cylinders other things....

btw it will build out of some sort of plastic and i have acess to a wood lathe

by
  • 0


jean
Staff Sergeant
Staff Sergeant
 
Posts: 125
Joined: Thu Dec 13, 2007 12:23 pm
Reputation: 0

Sponsored

Sponsor
 


Unread postAuthor: pneumaticcannons » Sun Nov 06, 2011 10:56 am

a wood lathe won't cut it. You need a metal lathe for precision machining.
About the design... it seems way too complicated. No offense intended. As wyz said(and as gun freak is going to say :D) go pneumatic!
  • 0

ramicaza <- My Youtube Channel
User avatar
pneumaticcannons
Major
Major
 
Posts: 392
Joined: Sat Oct 30, 2010 9:45 am
Location: shite country in asia
Reputation: 0

Unread postAuthor: Gun Freak » Sun Nov 06, 2011 10:57 am

Full auto combustions are ridiculous. Do you have any idea how easy a full auto pneumatic is?
  • 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: pneumaticcannons » Sun Nov 06, 2011 11:17 am

Gun Freak wrote:Full auto combustions are ridiculous. Do you have any idea how easy a full auto pneumatic is?

told you so :wink:
  • 0

ramicaza <- My Youtube Channel
User avatar
pneumaticcannons
Major
Major
 
Posts: 392
Joined: Sat Oct 30, 2010 9:45 am
Location: shite country in asia
Reputation: 0

Unread postAuthor: jean » Sun Nov 06, 2011 11:40 am

ok this isnt building for any airsoft game also it is only just for fun.
funktion before power.
please help me to figure it out

by
  • 0


jean
Staff Sergeant
Staff Sergeant
 
Posts: 125
Joined: Thu Dec 13, 2007 12:23 pm
Reputation: 0

Unread postAuthor: Gun Freak » Sun Nov 06, 2011 11:42 am

funktion before power.

Ok........

Pneumatic for funktion and power.
  • 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: jean » Sun Nov 06, 2011 12:11 pm

ok i be willing to build it combustion.
i had build serval pneumatic cannons and combustions.
have a basement workshop (drillpress cutting saw grinders and serval other things) and will try it out.
i won't go pneumatic.

by
  • 0


jean
Staff Sergeant
Staff Sergeant
 
Posts: 125
Joined: Thu Dec 13, 2007 12:23 pm
Reputation: 0

Unread postAuthor: Goats spudz » Sun Nov 06, 2011 12:23 pm

how about pre-loaded combustion or hybrid cartridges and then belt feed them, but still go pneumatic
  • 0

Where's my Chuck key?

Goats spudz
Lieutenant Colonel
Lieutenant Colonel
 
Posts: 458
Joined: Tue Aug 02, 2011 12:31 pm
Reputation: 0

Unread postAuthor: wyz2285 » Sun Nov 06, 2011 12:48 pm

If you really want it combustion that badly, there is a combustion mini gun in the combustion showcase, you might want to check it out, it's full auto.
  • 0

User avatar
wyz2285
Major General
Major General
 
Posts: 2244
Joined: Sat Mar 06, 2010 7:50 am
Location: Porto, Portugal
Country: Portugal (pt)
Reputation: 12

Next

Return to Combustion Cannon Discussion

Who is online

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

Reputation System ©'