3D Systems' SLS software version 3.2 integrates slicing and scanning routines The latest version (3.2) of 3D Systems' LS software now integrates slicing and scanning routines used in stereolithography systems. Other new features include upward and downward fill compensation, outline outside contour only, extrusion, variable layer thickness and infiltration tab wizard. The upgrade is free to 3D SLS system owners, on contract or under warranty.