CONTROL OF PHOTO-POLYMERIZATION FOR ADDITIVE MANUFACTURING

• Main Authors: Schmeing, Andre, Ou, Jifei
• Format: Patent
• Language: English
• Published: 08.08.2024
• Subjects: ADDITIVE MANUFACTURING TECHNOLOGY; ADDITIVE MANUFACTURING, i.e. MANUFACTURING OFTHREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVEAGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING,STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING; PERFORMING OPERATIONS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR; SHAPING OR JOINING OF PLASTICS; TRANSPORTING; WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL

Provided herein are systems and methods for 3D printing. The method can include providing a material model of a volume of photo-curable resin contained in a 3D printer, where a portion of the photo-curable resin is suitable for contact with radiation to cure a portion thereof. The systems and methods can further include providing a geometric model of a 3D object to be printed and choosing a printing methodology comprising a geometry and intensity of radiation to be projected onto the photo-curable resin as a function of time and a control parameter of the 3D printer. The systems and methods can further include minimizing an error between the cured portion of photo-curable resin as predicted by the material model of the photo-curable resin and the geometric model of the 3D object to be printed.