Selective modification of build strategy parameter(s) for additive manufacturing

A system for modifying object code representative of an object to be physically generated layer by layer by a computerized additive manufacturing (AM) system having a first and a second irradiation device using the object code, the system comprising:

• a computing device providing an interface to allow a user to manually:
• select a stitching region within the object in the object code, the object code including a plurality of pre-assigned build strategy parameters for the object that control operation of the computerized AM system;
• and
• selectively modify a build strategy parameter in the selected stitching region in the object code to change an operation of the computerized AM system from the plurality of pre-assigned build strategy parameters during building of the object by the computerized AM system, wherein the modifying includes modifying a scan vector end gap among a plurality of spaced scan vector end gaps defined between:
• a first melt pool end of a first scan vector formed by the first irradiation device in the stitching region, and a second abutting melt pool end of a different scan vector formed by the second irradiation device, wherein the plurality of spaced scan vector end gaps are alternatingly positioned in the stitching region.