I want to know about the SMT requirement documents. When I make a partlist and XY-coordination data from PCB software that shows me rotation angle like R90 or MR270. I know that R90 means rotate it 90 degree and MR270 is mirror and rotate parts.
But I'm curious how to know the direction? R90 can be either clockwise or counterclockwise? and I think If the pin position is opposite, so it may cause confusing.
For example, If I make a capacitor which is left to right pin number are 1 and 2. But other people make a capacitor which is left to right pin number are 2 and 1. Those are opposite way.
In that case How the SMT manufacturer know the direction of parts?
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