Innovation 03: Seamless lines
The lines where different parts and materials meet is a feature that is integral to the industrial design of the phone. These lines meet seamlessly and line up perfectly, for example, on the side of the phone.
To achieve this, the engineers and craftsmen worked to very precise tolerances on the wraparound ceramic. Achieving extreme precision with ceramic is difficult, as it can shrink by up to 30 percent during the sintering process when ceramic is transformed into a solid material. The tolerance level recommended by experts is 0.2 to 0.3mm, but the Æ+Y craftsmen achieved a level of 0.05mm for the top-end where the two pieces of ceramic meet and 0.03mm on the bezel where glass meets ceramic.
Achieving a flawless line and seamless gap where the ceramic meets the lens was made even more challenging because of the desired thinness of the phone. Æsir took inspiration from the watch industry and created a sapphire lens with a stepped ledge that would perfectly mount the ceramic front cover – a technique that had never been used before on a square-shaped lens, or on a lens the size of the Æ+Y.