Processing method of large area structure in low cost type stereolithography system using small DMD and UV-LED

摘要

PURPOSE: A method for processing a structure having a wide area in a low-cost stereolithography system using a small DMD(Digital Micromirror Device) and a UV(Ultraviolet)-LED(Light Emitting Diode) is intended to provide a microstructure and a wide area of a mesostructure at high precision using a projection method and a scanning method properly. CONSTITUTION: A method for processing a structure having a wide area in a low-cost stereolithography system using a small DMD and a UV-LED is as follows. A three-dimensional model is transformed to a STL(Stereolithography) file. The STL file is sliced to lamination thickness, and a sectional image is created. The sectional image is split according to each unit area to obtain U(Ux,Uy) coordinates. The DMD (x,y) coordinate of a stage is detected by transfer of X and Y stages. If the U coordinates are the same to the DMD coordinates, the information on a unit area corresponding to the U coordinate is transferred to a DMD.