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SAB Goblin 630/700/770 SAB Heli Division 630/700/770 - Goblin Helicopters Factory Support


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Old 05-05-2012, 07:30 AM   #41
Mystic3D
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Originally Posted by Flying Dutchy View Post
Hey Justindewoody, for the record, what you are stating here is incorrect! :-) there is something called ohm's law which makes it impossible to let 100A flow through your body at 12 volts and I can assure you that 500.000 volts with .1A will kill you in an instant! But you are correct that in the end it is the current that kills you.....
Interesting factoid. A cardiologist friend tells me a major factor in causing your heart to stop is AC cycles per second is when the frequency is divisible by heart rate.


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Old 05-05-2012, 07:46 AM   #42
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sounds logical to me, however, even a DC source will kill you as long as the voltage and available power are high enough.
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Old 05-05-2012, 09:45 AM   #43
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I ordered the pad when I built the Goblin and placed the YGE on the mount. It took about 2 weeks for it to arrive and by then I already had a number of flights on the machine and didn't think heat was much of an issue anymore. Now that summer is on the way I will install it the next time I get in the mood to cut tie wraps and dismount it. It's not a big job.

I got it from FrozenCPU but I'm sure there must be a European source that may be better for you. Lookup thermal pad, the thickest I could find was the 1.5mm
OK, thanks for the info
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Old 05-05-2012, 01:11 PM   #44
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Nick,

I just got all the stuff in and as far as I can see now I can make it fit. It is just too wide because of this 8 screw extensions on the sides. If I unscrew it all, cut off the 8 extensions and then hold the heatsink in place on the pcb with some epoxy, then it all should be fine after shrink tubing it again.... But I have to setup the Goblin first before I will get to that.....
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Old 05-05-2012, 04:34 PM   #45
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Maurice, thanks for the update. Can you please post a picture of it so we can compare to the Mikado version?
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Old 05-05-2012, 10:56 PM   #46
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Picture can be found here:

http://www.rigidheli.com/Webwinkel-P...-assembly.html
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Old 05-06-2012, 06:43 PM   #47
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Interesting factoid. A cardiologist friend tells me a major factor in causing your heart to stop is AC cycles per second is when the frequency is divisible by heart rate.


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AC current will put your heart in vfib... (Ventricular fibrillation)

DC current will stop your heart...

When us paramedics use the paddles, it is DC, we stop your heart, and "hope" it starts back up again...<grin>

On a related note, I installed my Kontronik using artic silver, and some zip ties... I figure the arctic silver thermal paste will transfer heat to the esc plate just fine...

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SAB Goblin 630/700/770 SAB Heli Division 630/700/770 - Goblin Helicopters Factory Support

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