3D PRINTING METHOD AND 3D PRINTING SYSTEM

WIPO Patent Application WO/2021/114602

A1

A 3D printing method and system, comprising: generating a 3D digital model of a sample to be printed and cutting the 3D digital model into an image sequence; sending the images to a micro-display device, the micro-display device provided with a light source projecting the images by means of a projection lens onto an interface of an oxygen-permeable film or hard window and resin at one end of a print head; an image acquisition unit collects the images reflected back by a spectroscope and detects the quality of the projection images, and printing is controlled on the basis of the detected quality; performing exposure printing; after one layer is printed, adjusting back to position and adjusting the up-down distance between the print head and the sample to print the thickness of the next layer, the gap between the sample and the transparent window of the print head being filled with the resin required to print the next layer; and repeating exposure and printing in turn until printing is complete and the model is replicated in the resin tank; the present 3D printing method and system use the hard edge of the lower end of the print head as a coating scraper, and simultaneously implement the splicing movement and coating steps, saving time and increasing efficiency.

XIA CHUNGUANG (CN)
ALEXANDER SLOCUM (CN)
JOHN KAWOLA (CN)
JASON BASSI (CN)

PCT/CN2020/097098

June 17, 2021

June 19, 2020

Click for automatic bibliography generation  

BMF NANO MATERIAL TECH CO LTD (CN)

B29C64/129; B29C64/264; B33Y10/00; B33Y30/00

CN109822891A	2019-05-31
CN106799835A	2017-06-06
CN101244629A	2008-08-20
CN105216330A	2016-01-06
CN108357089A	2018-08-03
US20160368210A1	2016-12-22

SZ KINDWALF INTELLECTUAL PROPERTY FIRM (CN)

View/Download PDF      PDF Help

Previous Patent: DUAL DIRECTION REFRIGERATOR ICE MAKER

Next Patent: MEM-BASED FIBER GRATING SENSOR PACKAGING METHOD AND DEVICE