(Technical Communication) Development of a Path Generation Algorithm for Large-Area Laser Patterning Using a Manual-Input Control-Point

摘要

In this study, we have developed stage path generation algorithm to extend scanner fabrication area into the stage working area. Proposed a manual input control point (MICP) path algorithm is to teach the stage path by a control point manually. G-code is a programming language for CNC ma-chines. The conventional system is difficult to use because it requires G-code inputs and takes a long time to prepare for processing when the data volume is high. But proposed the stage-path algo-rithm with a non-uniform rational B-spline (NURBS) curve uses the mouse pointer to receive con-trol-point (CP) inputs for path generation. It also reduces the processing time because helps the user to make the desired path. The speed profile is automatically calculated using the constraints, and a smooth profile is determined by defining the maximum acceleration/deceleration. A device for stor-ing 10 us/32-bit data was developed to verify that 350×350 mm squares could be processed without exceeding the 50×50 mm scan area. In addition, the two created path types were used to measure processing precision, and errors were comparatively analyzed according to path type.