The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Sep. 05, 2023

Filed:

Jul. 19, 2022
Applicant:

Beijing University of Technology, Beijing, CN;

Inventors:

Lifang Wu, Beijing, CN;

Lidong Zhao, Beijing, CN;

Zening Men, Beijing, CN;

Yandong Li, Beijing, CN;

Feng Yang, Beijing, CN;

MingLi Xiang, Beijing, CN;

Zun Li, Beijing, CN;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B29C 64/393 (2017.01); B33Y 50/02 (2015.01); B33Y 10/00 (2015.01); B29C 64/124 (2017.01);
U.S. Cl.
CPC ...
B29C 64/393 (2017.08); B29C 64/124 (2017.08); B33Y 10/00 (2014.12); B33Y 50/02 (2014.12);
Abstract

A rapid DLP 3D printing control parameter optimization method combining continuous and layered molding includes the following steps: confirming the maximum printable distance of each slice by analyzing the printable area of the model slice. The liquid-liquid interface printing scene was further established, and the flow behavior of the resin between the printed object and the fluorinated oil after printing a layer of slices was simulated and recorded. Next, determine the printing mode of the current slice by slicing the maximum printable distance and numerical simulation model. Then, based on Poiseuille flow, Jacobs working curve and Lambert-Beer law, the resin curing time of continuous and layered printing, the maximum filling distance of continuous printing, the best lifting distance of layered printing, and the corresponding printing platform lifting of the two methods are expressed speed. Finally, camera monitoring is used to determine the print origin before printing starts. This method can achieve fast printing of any model by obtaining the optimal control parameters, while being portable and printable.


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