Quote:
Originally Posted by Ether
Yeah, a fan is probably the first thing to try.
But the converse is true too: with or without fan-forced airflow, surface area is key.
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In this application, a fan is
definitely the first thing to try (assuming you don't have a mechanical issue that is causing the heat problem to begin with).
If you don't have airflow, you're relying on radiative cooling, and in that case surface area is very important. But in order to get enough radiative cooling to make a significant difference, the motor has to be hot enough that it will likely already be permanently damaged.