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 85 users online :: 5 registered, 0 hidden and 80 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

new cannon

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

new cannon

Unread postAuthor: spanerman » Fri Sep 22, 2006 12:08 pm

hi im building a cannon (my first full scale). it will be a 40cmX4'' chamber and a 150cmx1.5'' barrel and am wondering what we could youse as an igniting the fuel it must be available in the uk as we cant get lantern igniters and stun guns heelp. also i think that long nose lighters may not be powerfull enough
(not sure) what can i use????
  • 0


spanerman
Lieutenant Colonel
Lieutenant Colonel
 
Posts: 438
Joined: Sun Sep 17, 2006 2:54 pm
Reputation: 0

Unread postAuthor: Torch » Fri Sep 22, 2006 12:21 pm

Bbq Sparkers? I think that would be your best bet, and as for fuel propane wouldnt be a bad idea.
  • 0

User avatar
Torch
Sergeant Major
Sergeant Major
 
Posts: 180
Joined: Tue Jun 27, 2006 2:08 pm
Location: Maryland
Reputation: 0

Unread postAuthor: spanerman » Fri Sep 22, 2006 1:08 pm

ok il try that

whats the best way to deliver the propane into tht chamber
  • 0


spanerman
Lieutenant Colonel
Lieutenant Colonel
 
Posts: 438
Joined: Sun Sep 17, 2006 2:54 pm
Reputation: 0

Unread postAuthor: LucyInTheSky » Fri Sep 22, 2006 3:00 pm

Use deoderent, have a look here for UK supplies ideas www.uksgc.co.uk
  • 0

If your getting chased off a police dog, try not to run through a tunnel then onto a small see-saw then through a ring of fire. They are trained for that!
User avatar
LucyInTheSky
1st Lieutenant
1st Lieutenant
 
Posts: 293
Joined: Fri Apr 21, 2006 11:46 am
Reputation: 0

Unread postAuthor: 034936 » Sun Oct 22, 2006 9:03 pm

whats the best way to deliver the propane into tht chamber


helppp
  • 0


034936
Private
Private
 
Posts: 10
Joined: Sun Oct 22, 2006 8:40 pm
Reputation: 0

Unread postAuthor: judgment_arms » Sun Oct 22, 2006 9:17 pm

Here friend try this link it’s to the combustion section.
http://www.spudfiles.com/forums/viewforum.php?f=27&
I’ve never made a combustion otherwise I’d help ya more.
  • 0

User avatar
judgment_arms
Major General
Major General
 
Posts: 1272
Joined: Tue Oct 17, 2006 8:49 pm
Location: Not so beautiful North Carolina, but at least it’s the U.S.A.!
Reputation: 0

Unread postAuthor: squeaks » Sun Oct 22, 2006 11:49 pm

You could make a propane meter, or just make guesses on the amount you put in and just use a propane torch.
  • 0


squeaks
Captain
Captain
 
Posts: 326
Joined: Sun Oct 01, 2006 5:45 pm
Location: Enoch, UT(next to Cedar City)
Reputation: 0

Sponsored

Sponsor
 


Unread postAuthor: escape » Wed Oct 25, 2006 1:59 am

Best way to get the optimum amount of propane into the chamber is using and propane meter. Instructions to make one can be found here http://www.burntlatke.com/lp.html

Can be difficult to understand/construct, but well worth it. You can order one from http://www.spudtech.com/detail.asp?id=42 also, but I find that one a bit expensive.

KIR
  • 0


escape
Private First Class
Private First Class
 
Posts: 28
Joined: Tue Oct 24, 2006 3:53 am
Reputation: 0

Re: new cannon

Unread postAuthor: SpudBlaster15 » Thu Oct 26, 2006 11:19 pm

spanerman wrote:also i think that long nose lighters may not be powerfull enough
(not sure) what can i use????


I am using a $2 long nosed lighter wired to 3 (yes three) gaps, each 6" apart, and it fires every time. I think they are plenty powerful.
  • 0

User avatar
SpudBlaster15
Major General
Major General
 
Posts: 2385
Joined: Wed Oct 18, 2006 11:12 pm
Location: Canada
Country: Poland (pl)
Reputation: 3

Unread postAuthor: SpudStuff » Thu Oct 26, 2006 11:34 pm

That is 18 inches total and would take ~4,572,000 volts (at the standard of 10000 volts per CM) in an air environment, some how I don't believe that statment.
  • 0

User avatar
SpudStuff
Major General
Major General
 
Posts: 1410
Joined: Sat Dec 10, 2005 3:55 pm
Location: Cupertino, California
Reputation: 1

Unread postAuthor: frankrede » Fri Oct 27, 2006 12:13 am

Ya There is no way he is getting that.
You cant even get one jump 6" apart.Or even 1" in that case.
  • 0

Current project: Afghanistan deployment
User avatar
frankrede
Lieutenant General
Lieutenant General
 
Posts: 3220
Joined: Thu Jul 20, 2006 9:47 pm
Reputation: 0

Unread postAuthor: SquishY » Fri Oct 27, 2006 1:06 am

Maybe he has three sparks 6" apart.
  • 0

Whoever appeals to the law against his fellow man is either a fool or a coward.
Whoever cannot take care of themself without that law is both.
For a wounded man shall say to his assailant,
'If I live, I will kill you. If I die, You are forgiven.'
Such is the rule of honor.
User avatar
SquishY
Master Sergeant
Master Sergeant
 
Posts: 155
Joined: Tue Feb 07, 2006 6:37 pm
Reputation: 0

Re: new cannon

Unread postAuthor: EatSpud!!! » Tue Oct 31, 2006 2:49 am

SpudBlaster15 wrote:I am using a $2 long nosed lighter wired to 3 (yes three) gaps, each 6" apart, and it fires every time. I think they are plenty powerful.



no offence but that sounds like a load of b.s

i tried using the long nose lighter to spark 50mm gap in a minigun (medium sized about 50mmx200mm) and it never happened.
  • 0

HOlY crap>>>HEADSHOT
____
^^ <(____}
()
User avatar
EatSpud!!!
Private
Private
 
Posts: 9
Joined: Fri Oct 27, 2006 3:25 am
Reputation: 0

Unread postAuthor: SpudBlaster15 » Thu Nov 02, 2006 7:30 pm

God damn you people are stupid. SquishY appears to be the only one of you who has an IQ higher than 40. I said that I am using three spark GAPS, each one 6" apart. The distance between the ends of the two electrodes used to create each gap is around 4mm.
  • 0

People should not be afraid of their governments. Governments should be afraid of their people.
User avatar
SpudBlaster15
Major General
Major General
 
Posts: 2385
Joined: Wed Oct 18, 2006 11:12 pm
Location: Canada
Country: Poland (pl)
Reputation: 3

Unread postAuthor: squeaks » Thu Nov 02, 2006 7:38 pm

Spudblaster, when you say three gaps 6" apart people don't think, "oh, that must mean that there are 3 little gaps 6 inches apart." Besides, what good does the 6" give us? We just want to know how far your spark will jump.
  • 0


squeaks
Captain
Captain
 
Posts: 326
Joined: Sun Oct 01, 2006 5:45 pm
Location: Enoch, UT(next to Cedar City)
Reputation: 0

Next

Return to Combustion Cannon Discussion

Who is online

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

Reputation System ©'