3 3 AUTO-LEVELLING SYSTEM FOR DLP TYPE 3D PRINTER AND DLP TYPE 3D PRINTER WITH SAME

摘要

A light source 130 for irradiating light to the resin reservoir 120; a building tray 140 for supporting the molded article; a building tray 140 And an image sensor for measuring a tilt of the building tray; and an image sensor for measuring a tilt of the building tray. A tilting driving unit for adjusting a tilt of the resin reservoir; A light source transfer unit for adjusting a position of the light source; And a control unit for transmitting a control signal to the tilting driver and the light source transfer unit using a signal received from the image sensor, wherein the image sensor includes a plurality of CMOS cells arranged on a plane parallel to the building tray, And the plurality of CMOS cells transmit a signal amount generated by receiving light emitted from the light source to the control unit.