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| spanerman |
 Posted: 09/22/2006 12:08 PM Post subject: new cannon |
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Lieutenant Colonel
Joined: 17 Sep 2006
Posts: 447
296.08 Spud Bux
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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???? |
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| Torch |
| Posted: 09/22/2006 12:21 PM Post subject: |
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Sergeant Major
Joined: 27 Jun 2006
Posts: 179
3.27 Spud Bux
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| Bbq Sparkers? I think that would be your best bet, and as for fuel propane wouldnt be a bad idea. |
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| spanerman |
| Posted: 09/22/2006 13:08 PM Post subject: |
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Lieutenant Colonel
Joined: 17 Sep 2006
Posts: 447
296.08 Spud Bux
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ok il try that
whats the best way to deliver the propane into tht chamber |
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| LucyInTheSky |
| Posted: 09/22/2006 15:00 PM Post subject: |
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1st Lieutenant
Joined: 21 Apr 2006
Posts: 293
864.51 Spud Bux
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| 034936 |
| Posted: 10/22/2006 21:03 PM Post subject: |
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Private
Joined: 22 Oct 2006
Posts: 10
11.71 Spud Bux
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| Quote: | | whats the best way to deliver the propane into tht chamber |
helppp |
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| judgment_arms |
| Posted: 10/22/2006 21:17 PM Post subject: |
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The Judge
Joined: 17 Oct 2006
Posts: 1216
1363.81 Spud Bux
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| squeaks |
| Posted: 10/22/2006 23:49 PM Post subject: |
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Captain
Joined: 01 Oct 2006
Posts: 329
466.29 Spud Bux
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| You could make a propane meter, or just make guesses on the amount you put in and just use a propane torch. |
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| escape |
| Posted: 10/25/2006 1:59 AM Post subject: |
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Private First Class
Joined: 24 Oct 2006
Posts: 28
71.23 Spud Bux
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| SpudBlaster15 |
| Posted: 10/26/2006 23:19 PM Post subject: Re: new cannon |
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Human blast shield
Joined: 18 Oct 2006
Posts: 1539
11.03 Spud Bux
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| 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. |
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| SpudStuff |
| Posted: 10/26/2006 23:34 PM Post subject: |
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Major General
Joined: 10 Dec 2005
Posts: 1379
128.17 Spud Bux
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| 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. |
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| frankrede |
| Posted: 10/27/2006 0:13 AM Post subject: |
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Sangheili
Joined: 20 Jul 2006
Posts: 2896
421.43 Spud Bux
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Ya There is no way he is getting that.
You cant even get one jump 6" apart.Or even 1" in that case. |
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| SquishY |
| Posted: 10/27/2006 1:06 AM Post subject: |
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Master Sergeant
Joined: 07 Feb 2006
Posts: 159
600.49 Spud Bux
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| Maybe he has three sparks 6" apart. |
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| EatSpud!!! |
| Posted: 10/31/2006 2:49 AM Post subject: Re: new cannon |
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Private
Joined: 27 Oct 2006
Posts: 9
19.56 Spud Bux
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| 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. |
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| SpudBlaster15 |
| Posted: 11/02/2006 19:30 PM Post subject: |
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Human blast shield
Joined: 18 Oct 2006
Posts: 1539
11.03 Spud Bux
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| 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. |
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| squeaks |
| Posted: 11/02/2006 19:38 PM Post subject: |
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Captain
Joined: 01 Oct 2006
Posts: 329
466.29 Spud Bux
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| 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. |
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