Printed Circuit Board Assembly & PCB Design SMT Electronics Assembly Manufacturing Forum

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What do I win setting up 3 or more fiducials in printer ?

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#80072

What do I win setting up 3 or more fiducials ? | 26 March, 2018

Hi, If I can choose more than 2 fiducials, what would be my benefit?

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#80074

What do I win setting up 3 or more fiducials ? | 26 March, 2018

3 Fiducials would be enough if two of the fiducials are from the opposite corner of the board. More than 3 would not add more accuracy but more confusion for setup.

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dwl

#80086

What do I win setting up 3 or more fiducials ? | 27 March, 2018

Two Fiducials are sufficient for alignment. A third fiducial is useful to make sure the board isn't loaded backward. This assumes there's not a fourth fid on the opposite corner of the third.

More than three fids just wastes time on a printer since you can't do local alignment like you can on a P&P machine.

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