Interesting event.

I have been running my printer several batches a week with PLA and the bed set @ about 70. Just as I began using a new filament, the printer started to smell. I ignored it for the start of the first print with the new filament thinking it was related to the composition of the media, but then noticed the bed had stopped heating. The screw terminals on the heat bed relay for my 10" had melted and desoldered from the PCB. The smell was probably the melting terminals. Picture attached. I ordered a replacement and it is working fine. I'm wondering if this might be a symptom of a deeper issue with the heat bed, a common issue with the relay or a rare event. Anyone else with data points?

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