Optical EngineeringScanning path planning for graphics objects in laser flying marking system
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In this study, we described the scanning area limitation (SAL) speciality in laser flying marking and defined maximum markable time and maximum marking offset (MMO) for analyzing the effect of SAL on flying marking process. We presented maximum flying velocity (MFV) to evaluate the performance of a laser marking system and investigate the factors, including the the length of marking graphics in the moving direction and the marking order of graphics objects, which will impact the maximum flying velocity very much. Transverse and vertical directions of graphics entering into the scanning area and three object scanning path algorithms, the all-entered-marking, first-entering-first-marking (FEFM), and rowed-FEFM were analyzed and compared, and MMO and MFV were calculated using these algorithms. Experimental MFV results with different algorithms satisfied theoretical calculations very well, and it was shown that there is a best MFV performance when using the FEFM scanning path algorithm in the transverse moving direction.