We as you all have X'ed out boards which run through our lines.
Our machinery will recognize a white or bright yellow dot as a bad board
and automatically skip that offset in the programs.

Paper dots go through the reflow just fine but in the water wash they fall
apart and would clog up the wash after a period of time.

We can use a white marker which is permanent and hand draw a dot on every
board but now the problem is as human beings go. Some make big dots and
some put specks on which the machines may or may not recognize.

Any suggestions?????

Thanks

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