*STOL
r1
r1: r*8: Multiple STL gap tolerance
This card is used to prevent holes between parts when using multiple STL files. It should be assigned in the native STL units (e.g. mm, in, m, etc.). This value will expand each STL by the value chosen, r1, so it is best practice to make this as small as possible, without producing any holes. If overlap occurs, the mesh is assigned to the value in *STLM via the order of listing in *STLF.