It is about a gap in the aircraft fuselage in plastic that was printed at Amexci in Karlskoga, a company in which Saab is a partner.
According to Saab, the actual printing process was relatively simple.
However, the plastic part has undergone a long series of tests to ensure that it is safe to fly with.
Among other things, Saab has performed suction tests for negative pressure and tested the tensile strength in different temperatures, from room temperature to extreme cold.
Even before, other Gripen planes have flown with parts printed by a 3D printer.
The purpose of the experiments is to eventually be able to print spare parts in the field.