Steven Michalske wrote:
Would registration marks help with this? Three points forming approximately a 90 degree corner. Would give the ability to detect +x,+y I know our smt lines heavily depend on these marks. Steve
I think registration marks help a lot. Attached you find my favourite mark, that regrettably can't be converted into a footprint, because it contains polygons. It's very good for machine vision, gives sub-pixel accuracy. Since they allow to measure board manufacturing distortions, I'd eventually place 3-4 marks along each side. Using different marks to indicate axes.
Attachment:
regmark.pcb
Description: application/pcb-layout
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