The 3D printed house

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A house made by a 3D printer? This is no longer just a dream… the façade of the ‘Europa-Haus’ in the Amsterdam Marine Quarter, built for the duration of the Dutch Presidency of the EU, was partly constructed in this way. Based in Amsterdam, DUS Architects realised the idea of building entire houses in this way – with a mobile 3D printer in extra-extra-large (XXL) format, which is housed in a shipping container. For the construction of the building, the architects worked closely with igus.

The 3D printed houseIt might seem exotic or gimmicky at first glance, but on closer inspection, the building is not only charming, but has many benefits in its favour. The load-bearing structures are manufactured from biodegradable plastic, which can be recycled at the end of the presidency. This makes the structure both eco-friendly and sustainable. The interior decorations, such as the seating elements, were also 3D printed.

The architects were keen to point out that while pre-fabricated architecture is cost-effective, it can restrict design freedom in terms of creativity. The structural elements of the façade were 3D-printed, and then concreted into position on-site. This process of construction can also work very well to build new homes in disaster areas, for example.

To transform the idea into reality, DUS Architects founded a separate company called Actual; this enabled the owner to design or select components on a digital platform, which are then manufactured on site using mobile 3D printers. In the spirit of modern networking, Actual sought partners to help realise the construction.

The first generation 3D printer had a separate room for the control, this limited the part size to a maximum 2.50 × 2.50 × 3.50m. There was also need for improvement, both in precision and in the printing speed. As one of these partners, igus optimised the design of the mobile 3D printer and developed a linear robot for the print head.

During the planning stages, the engineers used the modular drylin system multi-axis linear robots. They are available as line, flat and room gantries for one, two and three axes, and depart from pre-defined surfaces and spaces. To enable the print head to move precisely, self-lubricated drylin toothed belt units were used. The leadscrew units were used to position the gantry vertically, which integrate drives that provide position detection.

The engineers also supported Actual with integration of the printer, which can now print structural elements of up to 6.50 m. In addition to the linear robots, other parts from igus were included in the construction of the 3D printer, including plain bearings, cable management systems and linear systems. Joe Platt, Head of Mechanical Engineering at Actual, said of the project: “igus gave us excellent support, and the gantry proved to be the best in practice.”

Among the projects being undertaken by Actual at present is the “3D print Canal House”, which is currently being built on a town canal in Amsterdam. The construction site is public and has more than 1000 registered visitors per month.

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