3D-printing to be used in HDB project for the first time, in Tengah and Bidadari estates

SINGAPORE - For the first time, 3D-printing could be used to build landscape furniture and architectural features in a Housing Board estate, such as a bench or a pavilion, in the upcoming Tengah and Bidadari estates.

Billed as the largest 3D-printer in South-east Asia, it successfully printed a room measuring 3.6m by 3m by 2.75m in 13 hours last month . The printer and the work involved in installing it cost about $900,000. "Architect and designers would have more free play in their designs, greater flexibility, and since the printing process is highly automated, that reduces the dependency on manual labour," he told reporters on Thursday.

It is costly to fabricate new moulds, which have to be done as each mould set will lose its form over time. With 3D-printing, such moulds will no longer be needed. Minister for National Development Lawrence Wong said on Tuesday at the HDB Awards 2019 that it is currently more expensive to use the 3D-printer.

But it is still pushing boundaries with new technologies, for example, by collaborating with local prefabrication company Robin Village Development, Dutch engineering firm Witteveen+Bos and the Nanyang Technological University to explore 3D-concrete printing's potential.

Ms Ng Peck Nah, deputy director of Building Construction Management, said that the project could lead to higher construction productivity with fewer delays due to safety-related incidents. Residents were notified in advance during the trials and the area below the flight path was cordoned off for safety during the inspection.

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