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04.07.2007, 11:32 PM
The Quark really doesn't need much. I usually use a 1/16" or 1/8" thick piece of aluminum with a little extra heatsinking on it. The case is all metal, but it's fairly thin and there isn't much surface area on the few and shallow fins. All in all, it probably has as much surface area as a MM heatsink, maybe less.
Also, be aware that the FETs are internally secured by a ~0.5mm thick thermal pad. After a while of running, the "sticky stuff" may let go. One user had that happen and the ESC thermaled quickly (of course). Once my ESCs are out of warranty, I take them apart and replace that sticky pad with thermal epoxy and it cools much better and faster. But since the thermal epoxy is permanent, it aint coming apart again.
No matter what ESC you get, there is always a chance that something will go wrong. There doesn't seem to be an ESC on the market that meets all needs - a holy grail if you will.
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