3D A 3D printer having a large scale display screen exposure system being divided by a plurality of display screens

摘要

The present invention relates to a 3D printer having a light exposure system of a large screen. The 3D printer of the present invention comprises: a resin tank which stores liquid resin; a molding plate which forms a molded planar side by being immersed in the resin tank or placed on a surface and curing and laminating the liquid resin on the molded planar side; a molded plate diving unit which derives and elevates the molded plate; a light exposure system which emits image light toward the molded planar side; and a control unit which generates a layered unit image from shape information of a molded object, divides the layered unit image into a plurality of divided images, and provides the divided images to the light exposure system with a time difference. The light exposure system receives the divided images, received from the control unit, and emits a plurality of divided image light with a time difference. The divided image light forms image light with a plurality of divided screens with a time difference and is emitted to the molded planar side. The 3D printer having a light exposure system of a large screen forms a large screen by using one optical engine and thus has a simple structure compared to a system using a plurality of optical engines. According to the present invention, a low-cost 3D printer can be provided.