The MNational Archaeological Useo (MAN) and Acciona have presented on Monday in Madrid the first architectural piece of cultural heritage reproduced on a real scale through 3D printing in concrete. Is about a replica of the Romanesque arch of San Pedro de las Dueñas de Sahagún (León), whose original is part of the Museum's collection.
The replica has been located in the museum garden.
This technological milestone is the result of the collaboration agreement signed between the National Archaeological Museum and Acciona with the objective of Integrate avant-garde techniques that contribute to disseminate and preserve the historical heritage of Spain.
In the act of presentation Andrés Carretero, director of the National Archaeological Museum, stressed that this milestone "makes the Museum one of the most advanced in the world in the application of new technologies to the dissemination and preservation of cultural heritage."
For its part Juan Ignacio Entrecanales, Executive Vice President of Acciona, company that has carried out the printing of the Arc, has highlighted the necessary link between the private sector and public institutions to drive innovation.
The collaboration agreement between MAN and Acciona is part of the Museum's strategy to integrate technology at the service of historical disclosure in its facilities and contribute to technological advances in conservation techniques and preservation of historical heritage.
The Arch of the Dueñas, –a Romanesque arch 2.2 meters high and 3.3 meters wide, dating from the 12th century– is one of the most emblematic elements of the Romanesque collection of the National Archaeological Museum, which combines both architecture and sculpture.
The reproduction of the work has been done through a novel 3D printing technique in concrete with D-Shape technology. The durability of the material makes it possible, for the first time, to achieve an architectural reproduction suitable for being located outside, subject to various weather conditions.
Thirty works of the medieval coefficient
The project also includes 3D scanning of a total of 30 works from the medieval collection. The selected cast intends to show some of the most important medieval pieces of the MAN collections, in a wide chronological journey from the IV to the XV century: works from the late Roman and Visigoth periods (ss IV-VII), from the Andalusian collections and Mudejars (VIII-XV centuries), and others framed in the medieval Christian world (IX-XV centuries).
The presentation of these reliable models on a touch screen in the medieval hall will allow visitors interactively approach the pieces and manipulate them virtually to appreciate its artistic value. In addition, the digital models of the pieces can be of great help for future restorations, because this technology allows to obtain full or partial reliable replicas of the pieces by means of 3D printing.
3D printing: an innovative construction and preservation technique
3D printing or additive manufacturing allows you to create a three-dimensional object by superimposing successive layers of material. This technique makes it possible to produce high complexity pieces from digital 3D models.
Applied to construction, 3D printing allows the digitalisation of construction processes, making parts with a complex geometry and design without using molds, and automate and increase productivity in construction environments.