We see very little mention of getting the orientation correct when building
library packages.
IPC has some rules
http://pcbget.ru/Files/Standarts/IPC_7351.pdf
This similar document results from those rules and depicts how they should
look in the your library (zero degrees)
Getting these consistent and correct in your libraries can assist your
assembler when they review your design and setup the machines to assemble
your boards. This should result in less errors, cost and improve
turn-around.
I hope this assists you
Warren
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