"Indeed, it allows for the integration of other pieces, materials and textures, opening the door for the creation of objects, which combine different features that are commonly hard to achieve through 3D printing." The toilet can be used in remote locations "We wanted to demonstrate that large-scale 3D printing can offer much more than ornamental pieces and single material elements," said Nagami CEO Manuel Jiménez García. An off-the-shelf separation toilet was used for hygiene reasons So the team decided to incorporate an off-the-shelf compost toilet instead.
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To prevent the accumulation of dirt and bacteria, Nagami had to avoid the use of 3D printing for the actual toilet seat, as the process creates distinctive grooves rather than a smooth, hygienic finish. Read: Shigeru Ban designs pair of transparent public toilets in Tokyo This is combined with a number of mechanical elements such as metal rails, which are inserted into the frame as it is being printed to accommodate the sliding door. Nagami, which specialises in 3D-printed furniture, decided to build on this idea for The Throne by sourcing a filament made from recycled plastic medical trays by Dutch company ReFlow. The Throne project is an evolution of the Bottle Brick Toilets that To.org set up in the slums of Kampala, Uganda, in 2018, which used bricks made from plastic bottles as their structure to simultaneously tackle the lack of management systems for both human and plastic waste. "But the cost of production needs to drop before this can be a viable solution for building structures in places like refugee settlements and urban slums." The cubicle has a distinctive ribbed finish created through the 3D-printing process "The Throne is a proof of concept for it can be used to create large structures that are both aesthetically pleasing and immensely useful," he added. "Plastic waste is a very low cost, inexhaustible resource," Mimran told Dezeen. An oculus lets in light from the top of the structure As 91 per cent of all plastic waste produced to date is still waiting to be recycled, To.org founder Nachson Mimran said this abundant material could help to create accessible and affordable sanitation and shelter where they are needed most.