Building components in FAB 3000 that are not a derivative of 90 degrees.
It is very common that a PCB design is sent out for manufacturing and assembly without any X,Y Centroid data for the components. Sometimes these designs come from a 3rd party, and there is no way to ask or retrieve the centroid data from the original designer. In these situations, a Part Centroid file must be extracted from the Gerber files. Here's a recent situation that occurred for a customer, and how FAB 3000 resolved the issue: