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| rednecktatertosser |
 Posted: 07/07/2007 13:50 PM Post subject: |
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Colonel
Joined: 22 May 2007
Posts: 601
451.78 Spud Bux
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| Sorry if this is a noobish question but why would the mix effect the spark? |
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| _Fnord |
| Posted: 07/07/2007 14:26 PM Post subject: |
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reenigne
Joined: 13 Feb 2007
Posts: 1218
1755.25 Spud Bux
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Air is an electricly resistant medium. When you put more air molecules between the spark electrodes, the voltage needed to jump across increases. (in his case, 4x mix will require an arc about an inch long in normal air.
Seeing as there is probably a quater inch gap between the chamber extierior and the edge of the telfon tape, the arc will tend to jump there, because the resistance is lower. |
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| Hailfire753 |
| Posted: 07/07/2007 15:00 PM Post subject: |
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Captain
Joined: 28 Jun 2007
Posts: 321
0.08 Spud Bux
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Nice. I like the 360.   Musta taken awhile, I just notaced that you can see the light of the sun setting in the background. You should have got the trial of flash, like I recomended, because gifs have bad quality.  come on man, no credit? I helped you for an hour! I'm just joking with you. How are you reading this anyways? |
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| SpudBlaster15 |
| Posted: 07/07/2007 21:45 PM Post subject: |
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Human blast shield
Joined: 18 Oct 2006
Posts: 1539
11.03 Spud Bux
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| _Fnord wrote: | | By the way, at higher mixes your spark may start arcing around the teflon tape outside the chamber. How big is your spark gap? |
I don't think you understand how he is producing the spark within the chamber. An insulated wire passes through a schrader valve body, and is JB welded in place. The exposed copper wire is bent over, as to form a spark gap between it and the scharder valve's body. When I went to help Tyler get it firing today, his gap was much too large, around 1/4", and wouldn't arc at a 4x mix. So, we shortened it to about 1/16", and it now works perfectly.
I calculated the required meter pressure, and we demolished numerous objects with only 2 misfires. |
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| tylerthetatertosser |
| Posted: 07/08/2007 5:22 AM Post subject: |
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Staff Sergeant
Joined: 22 Oct 2006
Posts: 107
176.95 Spud Bux
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well like spudblaster said we were shooting my gun today and demolished several objects, some of the objects include a phonebook whick a homemade arrow went right through, we shot 4 jumbo sized chalk thinks with my arrow which went through them and was never seen again... we also tried shooting 11 pop cans in a row but started to deflect half way down the line... it was a very fun day.  |
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| TechnoMancer |
| Posted: 07/08/2007 6:08 AM Post subject: |
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Corporal
Joined: 02 Jul 2007
Posts: 64
132.12 Spud Bux
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wouldn't the fuel and more molecules cause a lower resistance because it is easier for electricity to move through a substance than a vacuum usually!!
and if there are ne ions in the gas (which there wont be!!) it would have lower resistance! |
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| spanerman |
| Posted: 07/08/2007 12:19 PM Post subject: |
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Lieutenant Colonel
Joined: 17 Sep 2006
Posts: 447
296.08 Spud Bux
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| quick question, dont you need a regalator between the meter pipe and gas bottle? or just add gas untill it reaches the pressure needed on the guage? |
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| SpudBlaster15 |
| Posted: 07/08/2007 12:21 PM Post subject: |
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Human blast shield
Joined: 18 Oct 2006
Posts: 1539
11.03 Spud Bux
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| spanerman wrote: | | just add gas untill it reaches the pressure needed on the guage | |
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| spanerman |
| Posted: 07/08/2007 12:22 PM Post subject: |
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Lieutenant Colonel
Joined: 17 Sep 2006
Posts: 447
296.08 Spud Bux
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| oooo, that just made my plans alot simpler, (and cheaper) |
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| turbohacker |
| Posted: 07/08/2007 13:23 PM Post subject: |
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Major
Joined: 20 Dec 2006
Posts: 394
489.56 Spud Bux
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Great gun!
You must have quite a bit of mulah into steel parts 
What is the highest mix you have taken it to?-or are going to take it to? |
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| SpudBlaster15 |
| Posted: 07/10/2007 4:41 AM Post subject: |
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Human blast shield
Joined: 18 Oct 2006
Posts: 1539
11.03 Spud Bux
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| Hailfire753 wrote: | | come on man, no credit? I helped you for an hour! |
Actually, he didn't need the lengthy explanation you gave him via PM, he only wanted to know how to post the animation, as he had already created it. This is why you don't get the credit you are hungry for. |
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| tylerthetatertosser |
| Posted: 07/10/2007 5:07 AM Post subject: |
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Staff Sergeant
Joined: 22 Oct 2006
Posts: 107
176.95 Spud Bux
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| i have only taken it to 4x mix, i did cost a little bit but my dad got some parts from work |
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| SnowFlox |
| Posted: 07/10/2007 5:15 AM Post subject: |
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Sergeant First Class
Joined: 16 Jun 2007
Posts: 134
192.57 Spud Bux
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| thats some heavy equipment !! nice one ! |
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| psycix |
| Posted: 07/10/2007 6:58 AM Post subject: |
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Major General
Joined: 25 Jun 2007
Posts: 1711
167.35 Spud Bux
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It looks very nice!
Insane it is!
Could you make a vid of it?
Then it would be even more awesome! |
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| SpudBlaster15 |
| Posted: 07/10/2007 13:47 PM Post subject: |
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Human blast shield
Joined: 18 Oct 2006
Posts: 1539
11.03 Spud Bux
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| psycix wrote: | | Could you make a vid of it? |
If all goes well, we will be making one today. |
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