Staircase G. is the world's first project to be realised using the Selective Paste Intrusion (SPI) method. As the central architectural element of a private house on Lake Garda, the staircase extends over two storeys and a total height of ten metres. The 3D-printed core of lost formworks allows the steps to cantilever from it, thus separating them from the surrounding interior walls and enabling a crucial separation for sound insulation.
Scawo3d, located in the Sarentino Valley in South Tyrol, develops state-of-the-art technologies for the production of concrete staircases. Scawo stands for "Scale Wohlgemuth" - Italian for "Staircases Wohlgemuth" - after the inventor and owner Kurt Wohlgemuth and is a patented technology for customizing concrete staircases from prefabricated formwork.
In 2021, a new patent has been submitted for the world's first print head for printing cement paste into a bed of concrete aggregate allowing for any freeform to be printed and resulting in a novel method for additive manufacturing called Selective Paste Intrusion (SPI).
