Ok, before making changes and doing the thermal interface focbox->plate experimentI wanted to gather some data.
I initially planed to do this on proto#2 but it’s having it’s own issues now with a DRV fault. after previously having blown the FETS on the other focbox.
So, Let me do these tests with proto#1 (10s5p 20700b 20T/62T 155mm tire diameter )
this is my thermal test run ESCs temps shows 77 and 88. 84m climb over about 2km distance. a bit steeper at the end.
it’s interesting the two temps were that different. perhaps I should replace the internal thermal pad before doing the ESC -> aluminum plate experiment.