Vice President and Prime Minister of UAE and Ruler of Dubai announced the “Dubai 3D Printing Strategy” in August of this year. Part of this strategy is to achieve 25% 3D print for all new buildings starting in 2019 at 2% and graduate increase to achieve 25% by 2025. 
This announcement brought attention to a high-tech 3D print architecture firm in China, WinSun, also known as YingChuang Building Technique (shanghai) Co. Ltd. In 2014 WinSun made the construction headline by printing ten houses in a day under $5000 per house . August 2016, WinSun had completed the first 3D print government building, Office for Future, in Dubai . Year later, March of 2017, Saudi Arabian Al Mobty Contracting Company signed $1.5Billion contract with WinSun to lease 100 3D printers and to receive future technique support as well as to access its online cloud platform.  As today, WinSun still holds the record of tallest printed building, 6 stories villa, with only 30% of normal construction time 
To understand the significant of what WinSun is doing, we need to have some context of current construction industry. In the past decade, although we are able to build skyscrapers to fulfill our desire of reaching sky limit, construction industry hasn’t been evolved much. It remains as one of the industries consumes considerable amount of resources and poses significant environmental stresses . In a rough estimate, buildings consumed 36% of the total energy used, 30% of the raw material used, and 12% of portable water consumed in the US . These data found similar in UK and other developed countries. In a McKinsey market research report, labor performance on productivity has double in manufacture but in construction remains flat.
If this is not bad enough, the value added per hour worked is decreasing in construction while other comparable industries are increasing significantly . Currently, 70% of projects are over budget and delivered late. The industry still sees about 800 deaths and thousands of injuries per year .
3D printing also known as Additive Manufacturing has been invented since 1983, nowadays, this knowledge is been rapidly adopted in aerospace, automotive, and medicine field . So what’s the value proposition of 3D print from WinSun and how can it be the paradigm shift to change the current industry dire situation while other promising technology such as BIM (building information modeling) hasn’t able to do so?
Reference to figure 2 below, the simplify version of 3D printing process, provides answer to the question many construction companies struggled to solve since introducing of BIM – what do we do with this model? How can we effectively translate this model to real productivity?
From environmental, social, or economical aspects, combine 3D printing and Cloud computing, WinSun 3D printing technology possess the ability to interrupt traditional Construction industry in many positive ways:
- It’s environmentally friendly. This construction method not only reduce construction waste by 30% to 60%, “ink” from the printer is a special designed mixture that combine industrial recycled solid waste with cement to form much thicker than regular concrete .
- Improved safety—Reduce number of injuries and fatalities onsite as the printers will be able to do most hazardous and dangerous works
- Cost Reduction – With reducing profit margin and increasing labor cost while facing shortage of skillful labor, 3D printing can effectively reduce labor cost by 50% to 80%  become more competitive and preferable way to build.
- Time saving – Company competitive edge can be further strengthened because 3D printing project reduce time by 50% to 70% . This also adds value to the end users, whether is home owner or developer.
- Encourage diversified working force. By removing labor intensive elements of construction, 3D printing could open possibilities to all people to be integrated into the workforce 
- Unrestricted design possibility. Computer automation allows more control and precision while unbound by typical design constrain. The ability to use curvilinear forms, rather than rectilinear form bound by traditional construction, unlocks the door to whole new realm of design 
Despite all the great benefits and some early adopters to participate, there are challenges laying ahead:
- Even with high labor cost reduction, up-front cost of the 3D printer is still too high to achieve mass adoption. Printer size and placement still can’t be accommodated for all project types. 
- There is limitation on types of materials we can use for 3D printing. 
- Many skill workers are feared that 3D printers will replace the workforce. 
- There is lacking design/inspection standards developed for 3D print components. Although we can apply existing building code, the performance result and testing method maybe different because the design mixtures are new, and we have limited data to understand its long term performance. 
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