Velocity Profile Generation of CNC Machines by the Look Ahead Algorithm

Look Ahead 알고리즘에 의한 CNC 공작 기계의 속도 궤적 생성 연구

This paper proposes the look ahead algorithm with the trapezoidal velocity trajectory in each G-code block. The algorithm requires the information on the length of next trajectories and the connecting angle between each trajectiories. A method of generating the maximum corner velocity upon the connecting angle within the machining tolerance is developed and applied to the look ahead algorithm. Simulations and experiments witha machining center show the effectiveness of the methodology.