Optimization of Modeling and 3D Printing of Architectural Elements in Historical Buildings Through the Systematization of Boolean Solid Operations

By having a 3D model of an architectural element that can be viewed on a computer display, it cannot always be printed in 3D adequately to achieve a real model. When the element is designed, it must be considered that the model must be solid, it must be completely closed and the existence of geometries that require supports in 3D printing must be minimized or even eliminated. This paper presents the research on the optimization process of the 3D modeling of both the exterior and the interior of the keep of the Castle of Priego de Córdoba. Given the complexity of the aforementioned 3D model, the interior of the tower has been conceived as if it were a positive virtual 3D mold and, after applying Boolean operations, subtracting the aforementioned virtual 3D mold from the exterior of the tower. This conception facilitates the systematization of the process of obtaining 3D models. The ultimate goal is to obtain a printable 3D model without supports and perform an analysis varying the printing modes.