From 3D survey data of cultural heritage artefacts to 3D-printed prototypes based on cement and lime-based mortars

The preservation of historic structures and artefacts has evolved with new technologies, and reverse engineering emerges as a pivotal tool for capturing their geometry and intricate details, enabling their replication and restoration through additive manufacturing techniques. This article delves into the application of digital technologies in the rehabilitation of cultural heritage artefacts, using 3D survey technologies for data acquisition of the building element, 3D modelling and liquid deposition modelling for the fabrication of the prototype. The methodology and challenges encountered during the scanning phase, the digital modelling preparation, and the 3D printing trials are described, offering insights into the technical processes involved and paving the way for further advancements in this field.