Farmers in Gansu develop 3D printers to build greenhouses

On October 10, 2016, a machine sound of "squeak, squeak" sounded in Wumiao Village, Chengchuan Township, Jingning County, Gansu Province. On this day, 38-year-old farmer Wu Bingrong officially began to "print" his house with the mobile 3D building printer he invented.

Half a month later, the neighbors were surprised to find that a wall 18 meters long, 30 centimeters thick and 1 meter high really stood up.

"3D building printing is very hot now, which is not only of reliable quality, but also can shorten the construction period by 50% to 70%, and reduce labor by 50% to 80%. In addition, as a new way of construction, the biggest bright spot is environmental protection. " Wu Bingrong said: Gansu is a major agricultural province, and it is the right time for the development of modern agriculture. I will apply this technology to modern agriculture and print the walls of greenhouses, which is of milestone significance.

Decided to develop 3D building printer from 300000 to 30 million

Why would a farmer set foot in the "high, sophisticated and sophisticated" field of 3D building printers? It starts with building a house.

Just after the spring of 2014, Wu Bingrong and his parents decided to renovate the family's old house, but the calculated 400sqm courtyard will cost at least 300000 yuan. During that time, Wu Bingrong, who was obsessed with building a house to save money, was fascinated by the news report that a company in Suzhou printed a villa with a 3D printer while surfing the Internet. "the cost of a villa printed in 3D is only 2/3 of that of manual construction," the report said. "

After seeing the message, Wu Bingrong was so excited that he immediately boarded the train to Suzhou and found the company and visited the "printed" villa on the spot.

When he asked if he wanted to "print" his house with 3D technology, he was told that the franchise fee would cost more than 30 million. From 300000 to 30 million, reality played a big joke on this warm-blooded farmer. Wu Bingrong, who was disappointed, made a big decision in his life: to develop his own 3D building printer.

Turn on the mode of "crazy learning" and upgrade "printers" from generation to generation

When he came back from Suzhou, Wu Bingrong spent all his time on his studies. He has read a large number of documents on electronic circuits, mechanical manufacturing, automatic control, 3D printing, cement building materials, robots and so on. From the first generation of 3D printers in September 2014 to the fourth generation of 3D printers today, Wu Bingrong has overcome the problems of printing formless, how to print walls, and the clunkiness of machines. Wu Bingrong told reporters that today's 3D printers have many advantages: "first, they are small and exquisite, and huge buildings can be printed on the spot by moving on their own; second, three-dimensional models of buildings are designed by computers and printed directly by printers, which saves the production of bricks and other building materials and shortens the production cycle; third, the degree of building automation is high, reducing labor intensity; fourth, the cost is low, and the building materials are ordinary cement and fine sand. Fifth, the appearance and shape can be designed at will, and landscape buildings of different shapes can be printed. But the fourth generation of small mobile 3D printers have only one sprinkler and can only print 2 square meters of walls per working day, which is relatively inefficient. "

At present, Wu Bingrong is developing more advanced small mobile 3-nozzle and 6-nozzle printers. "I hope this technology will be realized as soon as possible, so that the broad masses of farmers can enjoy the fruits of scientific and technological development as soon as possible."

(reporter Li Xiaoguang, correspondent Wang Xiongxiong)