India’s “cleaning plan”, which was rated as a business opportunity of 62 billion US dollars, has brought new opportunities. According to foreign media reports, the world ’s first 3D printed toilet developed by the Hamilton Laboratory has been born and will be widely used in Madhubani and Darbhanga in northern and eastern India, aiming to improve the sanitary conditions in both places. Milton Laboratories is headquartered in Singapore and is a 3D printing collaboration program jointly established by Nanyang Technological University (NTU), National University of Singapore (NUS) and Singapore University of Technology and Design (SUTD). Outsiders predict that 3D printed toilets may make a huge contribution to toilet hygiene in India. It is understood that the Hamilton Laboratory has signed an agreement with the Rural Information and Action Center (CRIA) in India to use its robotic 3D printing system to build 3D printed concrete toilets for India. The company said that its robotic 3D printer HamilBot Mark 1 is capable of building “quick, beautiful, and comfortable toilets.” India is the second most populous country in the world, and its poor sanitation facilities have been criticized by the outside world. According to UNICEF estimates, India has a population of about 524 million, and about half of the total population does not have a toilet, so there is a strange phenomenon of using “toilet” as a dowry. Indian Prime Minister Narendra Modi ’s “clean plan” proposed in 2014 eradicated the country ’s open defecation habits in 2019. The plan contains $ 62 billion in business opportunities. So far, about 60 million new toilets have been built, but about 40 million are needed. Madhubani and Darbhanga signed a 3D printing toilet cooperation with Milton Laboratories. One is to quickly solve the lack of toilets in the two regions. India ’s “cleaning plan” is to be completed in 2019, leaving time for the two places More; second, 3D printed toilets are relatively cheap. In the absence of sufficient funds from the government, 3D printed toilets can really help. It is understood that the 3D printed toilet developed by Milton Laboratories is not made of typical 3D printing materials such as PLA and ABS, but is made of special cement made of recycled fly ash, which is a raw material for coal combustion In countries where coal-fired power generation is used, there are many sources, which save a lot of costs. It is worth noting that Milton Laboratories is not the only institution that makes toilets. As early as 2015, the China International Tourism Expo had exhibited a number of sanitary wares manufactured, including a yellow and black 3D printed toilet produced by Shanghai Huajie Ecological Environment Engineering Co., Ltd. And did not get attention. In September 2016, a 3D printing company called WinSun China designed and manufactured 3D printed apartments and villas in the Dayang Mountain Scenic Area in Suzhou, including a 3D printed public toilet. How far is the 3D printing technology from the bathroom, the key link is the material source. Materials directly affect the cost of 3D printing products, as well as the promotion and popularization of 3D printing products. People are still in the exploration stage of 3D printing. Perhaps in the near future, after solving the cost problem of 3D printing materials, 3D printed bathroom products can be seen everywhere.