A method for determining the positional laydown accuracy of an automated
lamination machine during fabrication of a multiple layered part is
described. The method includes measuring a position of a placement head
of the lamination machine in a coordinate system, determining a location
of a ply edge with respect to the placement head, transforming the
location of the ply edge into the coordinate system, based on the
measured head position, transforming the location of the ply edge from
the coordinate system into a second coordinate system that is associated
with the part being fabricated, and comparing actual ply edge location in
the second coordinate system to an expected ply edge location defined in
the second coordinate system, the second coordinate system associated
with the part being fabricated, to determine the laydown accuracy of the
machine.