Hour 6 of a 7 hr PLA print and no heat to the bed.
Investigation shows, melted negative 16 AWG wire from the power supply to the relay. I used 16 AWG per the kit instructions. That connector is fused to that terminal now.
Causes? Solutions?
I think I am going be running my thermal camera on things for a while after I fix this issue.
https://content.screencast.com/users...01-30_0917.png
https://content.screencast.com/users...01-30_0918.png