Research on 3D printing path planning algorithm based on combination of contour offset and Hilbert curve

In this paper, a path planning algorithm based on the combination of contour offset and Hibert curve strategies is proposed to mitigate the poor printing accuracy and low efficiency of existing path planning algorithms for 3D printing. The contour offset path is used at the edge of the printing area to ensure contour accuracy, and the Hibert curve path is used inside the printing area with low precision requirements to achieve complete filling of the inside area through a continuous curve. The proposed algorithm avoids the blank running of the printing nozzle and improves the printing efficiency.