Patent ID: 11911969
Assignee: INDUSTRY-ACADEMIC COOPERATION FOUNDATION, DANKOOK UNIVERSITY
Field: Other special machines (Mechanical engineering)
Classification: CPC B  G | IPC B  G

Claim 4:
5. A control method of a 3D printer capable of adjusting a light transmission rate, comprising the steps of:
setting a processing course of light emitted to a forming material to cure the forming material;
determining a beam shifting speed in each of processing zones of the processing course set in the step of setting a processing course;
determining an accumulated intensity of light emitted to the forming material in each processing zone of the processing course, wherein the accumulated intensity of light is determined based on the beam shifting speed in each processing zone of the processing course;
adjusting, by forming a translucent plate, a transmission rate of the light emitted to the forming material based on the beam shifting speed in each of the processing zones of the processing course and the accumulated intensity of light, wherein the transmission rate of the light is adjusted corresponding to a transparency of the translucent plate; and
irradiating, by a light source, the forming material with light at the transmission rate of the light in each of the processing zones to cure the forming material while shifting light beams along the processing course,
wherein, in the step of adjusting the transmission rate of the light, the translucent plate is disposed between the forming material and the light source,
wherein the translucent plate is formed with an area covering an entire area of the forming material irradiated with light from the light source,
wherein a translucency in each processing zone of the translucent plate is inversely proportional to the accumulated intensity of the light irradiated to the forming material corresponding to the area of the translucent plate.