12020 heat

[BrianG]

Hey, I noticed after running for a while that the sides of the ESC seem hotter than the heatsink itself. Without removing the heatshrink, I assume that the PCB traces work as a heatsink for the lower layers and the heatsink is only on the top layer of FET devices? Since I've had my ESC for a few months now, I was thinking of risking the warranty by removing the heatshrink and attaching heatsinks to the sides of the ESC. While I'm at it, I'm thinking of adding a larger one in place of the current one. I could use a fan, but I'd rather not use one just for the sake of simplicity. Does anyone have detailed, close-up pictures of what a non-burned ESC (9920 or other would work too) looks like without the heatshrink? I don't want to remove the shrink unless I have a reasonable idea that what I want to do is possible.