Zhejiang University

Hongyao Shen

Jianzhong Fu

Xiaoxiang Ye

Qingyu Li

The present invention has disclosed a 3D printing method, comprising the following steps: (1) importing a model to be printed into the printing area; (2) a support unit in arrayed arrangement is provided at the lower part of the printing area; dividing the printing area where the model is located into supporting divisions in corresponding quantity according to arrangement of the support unit; (3) traversing each supporting division to obtain the lowest point on the model in the supporting division; set the target height value of each supporting unit; the target height value shall be no more than the height value of the lowest point; (4) hierarchically slicing of the model and establishment of hierarchical relationship to obtain a series of 2D contour lines in reference to intersection of plane with the model according to layer height; (5) proceeding with treatment of the supporting structure according to target height value of the supporting unit to deduct substituted part of supporting unit in the supporting structure; (6) defining runtime of supporting unit and velocity as required to reach the target height according to the time as required by the printer nozzle to reach the position of target height value of the supporting unit so as to make the printer nozzle and supporting unit top to reach the target height simultaneously; (7) controlling the operation of printer and supporting unit to complete printing of physical model according to calculations.

Growing community of inventors

Hangzhou, China

Hongyao Shen