Since you're "in that neighborhood", perhaps it would be worth going with a relay as well.

I don't know what the numbers are for the 8", but a relay couldn't hurt..., especially if you've possibly burned out a mosfet being run close to a limit.

Out of curiousity, do you mostly print PLA or ABS? (i.e., what are your typical bed temps?)

0.02USD.

Quote Originally Posted by eghm View Post
My D8 stopped powering my heatbed tonight. D9 works, I don't see any burns on the side of the board I can see, I assume it's the same terminal issue others have reported.