I'm using an h-bridge with a SO28 footprint. The SO28 footprint in PCB has a .050 mil pitch which matches the spec for the chip. When I place the footprint in PCB on a 1" x 1" inch card the pitch is correct. My problem is that the actual card size is 6" x 4". At this size the pitch starts to grow as you go from pin to pin. It probably has something to do with the aspect ratio of the monitor or maybe the resolution of the printer/export but when I print out the etch pattern to make a home-made card the pins don't line up. Hopefully I described the problem well. How can I account for this? Thanks
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