METHOD AND DEVICE FOR DETERMINING A REFERENCE FOCAL POSITION OF A BEAM OF A BEAM-BASED MACHINE TOOL BY PERFORMING A SEQUENCE OF TEST CUTS ON A WORKPIECE

摘要

Disclosed are methods of determining a reference focus position of a beam of a beam-based machine tool. The methods providing a relative motion trajectory defining a discoid area with respect to a surrounding area, the discoid area being connected to the surrounding area via at least one bridge area, and performing a sequence of test cuts on a workpiece, wherein at each test cut, a cutting structure is cut in the workpiece by guiding the beam along the relative motion trajectory and the cutting is performed along the at least one bridge area of the relative motion trajectory at differently set focus positions.