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 75 users online :: 5 registered, 0 hidden and 70 guests


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

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

The Team
Administrators
Global Moderators
global_moderators.png CS

My mini-hybrid project

Post questions and info about hybrid (compressed gas with fuel) powered cannons here. This includes discussion about fuels, ratios, ignition systems, build types, safety, and anything else relevant.
Sponsored 
  • Author
    Message

My mini-hybrid project

Unread postAuthor: jakethebeast » Sun Apr 10, 2011 9:16 am

hi!
When JSR got the mini-hybrid working on high-mixes, i decided that i want to build something like that. Well today i had time and went to my workshop. Then i saw an old .177 cal airgun barrel. I got an idea, and here it is. Basically i drilled 11mm dia hole about 34mm deep and i left few inches long barrel. the combuction chamber is 11mm x 24mm, so its not big :D . The small screw on the top is for the iongition and has 1mm hole thhrough it, and after i took the pictures i epoxied a wire to it, it has about .1-.2mm spark gap and i can adjust it if i need. I tapped screws to the bottom of the combustion chamber to alloy me to plug it with a bolt. Today or as soon as i can ill epoxy a presta valve to the bolt so i can feed this baby :D . heres a picture of it

EDIT: heres one more pic
  • 0

Attachments
PIC_0217.jpg
PIC_0219.jpg
Last edited by jakethebeast on Sun Apr 10, 2011 9:35 am, edited 1 time in total.
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: Crna Legija » Sun Apr 10, 2011 9:29 am

looking good, how much barrel was left as barrel? :D. What's your ignition source. and how are you putting in burst discs or is it jsrs patent dent system :lol:
  • 0

'' To alcohol... The cause of, and solution to, all of life's problems.”
--Homer Simpson

Add me on ps3: wannafuk, 8/11/11 cant wait
User avatar
Crna Legija
Major General
Major General
 
Posts: 2333
Joined: Sun Jul 20, 2008 5:14 am
Location: australia
Reputation: 0

Unread postAuthor: jakethebeast » Sun Apr 10, 2011 9:33 am

ah sry i forgot to say, but iv seen that the ammo is so tight that it doesnt need a bursk disk. whit low and medium mix i mean. i have putten 130psi and the pellet didint even move so it doesnt need a disk. For ignition im using BBQ igniter from olf grill. And the barrel is about 5cm locg. this one is not for powerm this is for the compactness :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 » Mon Apr 11, 2011 12:40 am

Looking forward to see it work :) don't forget my fuel injection advice ;)
  • 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

Unread postAuthor: jakethebeast » Mon Apr 11, 2011 6:37 am

yeah, i was planning to do that but where the hell im going a find a syringe for measuring 0.24ml of fuel for 4x shot :D

EDIT: im gonna be using butane and the chamber is 2ml
  • 0

Last edited by jakethebeast on Mon Apr 11, 2011 6:49 am, edited 1 time in total.
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: Crna Legija » Mon Apr 11, 2011 6:45 am

You could ask a heroin dealer :D or a chemist.
  • 0

'' To alcohol... The cause of, and solution to, all of life's problems.”
--Homer Simpson

Add me on ps3: wannafuk, 8/11/11 cant wait
User avatar
Crna Legija
Major General
Major General
 
Posts: 2333
Joined: Sun Jul 20, 2008 5:14 am
Location: australia
Reputation: 0

Unread postAuthor: ilovefire » Mon Apr 11, 2011 6:48 am

get a large syringe, do some math, then fill the syringe with a small amont of gas then fill rest with air, then purge chamber with said mix and if math is right then you will have 0.24ml of gas mixed in with the air in the chamber
  • 0

why make it if it dosent shoot?
User avatar
ilovefire
Colonel
Colonel
 
Posts: 511
Joined: Sat May 22, 2010 6:48 am
Reputation: 0

Sponsored

Sponsor
 


Unread postAuthor: jakethebeast » Mon Apr 11, 2011 6:51 am

Actually, i think im going to be using what i used with my larger hybrid. I loaded 2psi of rpopane in the chamber and then i calculated how much gas i need to ad to get the 4.2% mix. Ill might try that with this one
  • 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: Crna Legija » Mon Apr 11, 2011 7:50 am

if it doent, you can get a 1ml syringe
  • 0

Attachments
syringe%201ml%20insulin.jpg
'' To alcohol... The cause of, and solution to, all of life's problems.”
--Homer Simpson

Add me on ps3: wannafuk, 8/11/11 cant wait
User avatar
Crna Legija
Major General
Major General
 
Posts: 2333
Joined: Sun Jul 20, 2008 5:14 am
Location: australia
Reputation: 0

Unread postAuthor: jackssmirkingrevenge » Mon Apr 11, 2011 8:09 am

I would go with a small syringe, you should find 1mL syringes at your local chemist (though they might be the type with integral needle which would need to be cut down).
  • 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

Unread postAuthor: jakethebeast » Mon Apr 11, 2011 11:27 am

its given me hard time finding one of those syringes, any ideas?
  • 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: Technician1002 » Mon Apr 11, 2011 11:32 am

Diabetes supplies..

Check your local pharmacist, or chemist. Ask for them without needles.
http://www.diabetesstore.com/t_29gsyringe.html
  • 0

User avatar
Technician1002
Chief of Staff
Chief of Staff
 
Posts: 5190
Joined: Sat Apr 04, 2009 11:10 am
Reputation: 14

Unread postAuthor: jakethebeast » Sun Apr 17, 2011 1:29 pm

Sry for the delay, but fixing "Tuna" has tooken all my time. I might have tomorrow some time to attach the valve for filling. Second thing is, my local "dealer" has no syringes left :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

Return to Hybrid Cannon Discussion

Who is online

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

Reputation System ©'