In article ,
Franc Zabkar wrote:
I'd also drill a hole at the ends of each track, components and traces
permitting. This will relieve any stress and prevent cracks from
propagating.

Novel concept. While this may be good practice on a single material PCBs
are composites, and it's usually just the track that cracks. And by nature
tends to be across the entire track so can't spread anymore.

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*Time is what keeps everything from happening at once.

Dave Plowman London SW
To e-mail, change noise into sound.