If a sheet is produced with a laser-machine, then normally it would become not 100% correct, because the laser has some tolerances.
So it would be usefull if the dxf-file could be auto-corrected when exporting it with an user-defined value.
For example if the user sets the value to 0,1mm, then the outside-geometry would be made smaller (=> minus 0,1mm) and the inside-geometry (holes, threads, etc.) would be made bigger (=> plus 0,1mm)
In effect this is nothing else than the offset-function...