The Chinese Academy of Sciences Chongqing Institute of Green Smart Technology announced on April 18 that the first space 3D printer co-developed by the CAS and the Space Application Engineering Technology Center of the Chinese Academy of Sciences has successfully completed the parabolic weight-loss flight test in Bordeaux, France, Complete 3D printing. According to Duan Xuanming, director of the 3D Printing Technology Research Center of the Chongqing Institute of Chinese Academy of Sciences, the largest part size of the printer is 200 × 130mm, which is more than twice as much as the print size of the first in-orbit printer of NASA. In early March this year, the printer conducted a parabolic weightless flight test in Bordeaux, France. 3 days a total of 93 print tests to achieve the plastic and composite materials such as 2 kinds of materials and weightless, overweight, normal gravity state of the three kinds of process parameters, four models and other micro-gravity printing, the successful acquisition of micro-gravity environment 3D printing process parameters affect the experimental data for the completion of China's space station construction and post-operation in 2020 laid the foundation. Duan Xuanming introduction, in-orbit 3D printing is to solve the space station maintenance and protection needs of an effective method. At present, astronauts on the space station rely more on the supply of ground, and almost all the space station supplies require ground supplies, especially some precision instruments and equipment. If astronauts can create the required experimental and maintenance tools and components in a weightless environment, the space station experimentation and maintenance flexibility will be greatly enhanced and the type, amount and operational cost of spare parts for the space station will be reduced. It is understood that the space station waiting for a global supply of at least six months, and 3D printing takes only 1-2 days to produce the need to replace the parts. Duan Xuanming introduction, at present this printer is the third edition of their research and improvement, through the continuous development of design, electrical machinery, transmission equipment and weightlessness flight test to prove that the printer on the earth diagonal, inverted, in the microgravity, No gravity conditions can print, and print the same level of foreign and. Duan Xuanming said he hopes this result can be applied to China's space station.