Automatic Production of Tailored Packaging for Fragile Archaeological Artifacts

Abstract

This paper deals with storage and transportation of fragile heritage objets. The main goal is to create an ad-hoc packaging software solution by combining the use of 3D scanning and 3D milling technologies. Traditionally, packaging for this kind of objects is made manually, creating custom supports and boxes adapted to the specific needs and particularities of each case. This process is time-consuming and fully dependent on the conservator's skills. On the other hand, the proposed solution provides a faster execution and a standard solution adapted to every object. The process starts with the acquisition of 3D digital models of the original artifacts and uses an interactive GPU-accelerated algorithm to assist the conservator in the construction of the package. The final result is a CNC program that is sent to a low cost milling machine to produce the housing for the selected artifact. Unlike 3D printers, milling machines allow working with lots of different materials, which is a key aspect for this kind of packages: chemical stability and shock absorption are mandatory. Given that, during the design process, original artifacts are only manipulated in the acquisition stage, risks of damaging them are also reduced. Since the whole process is considered in the same application, intermediate calculations are performed considering manufacturing and user-defined restrictions. This way, together with a GPU implementation, achieved results are very fast providing a real-time application with visual feed-back.

Influence of Three-Dimensional Printing Parameters on Compressive Properties and Surface Smoothness of Polylactic Acid Specimens

“…When polymers are printed The results obtained by the ANOVA analysis also revealed a direct relationship between the compressive properties of the PLA prints and the extrusion width. While it has been reported that the extrusion width has an insignificant impact on the compressive strength of ABS prints [14], the results of the present study, in Figure 8b-d, showed that altering the extrusion width from 0.45 mm to 0.65 mm led to an increase in the compressive strength and specific strength by 10% and 8.5%, respectively. However, the impact of the extrusion width on the compressive modulus was not significant.…”

“…For example, research has shown that The compressive strength and surface finish in fused filament fabrication (FFF) parts play critical roles in various demanding applications. Notably, FFF finds application in metal forming and molding tools [8][9][10], jigs and fixtures [11,12], full-scale molds for wind turbine blades [13], packaging products [14,15], bone scaffolds [2], and medical implants [16], where compressive strength is essential to withstand compressive stresses. The surface finish is equally crucial in such applications.…”

From Virtual Reconstruction to Additive Manufacturing: Application of Advanced Technologies for the Integration of a 17th-Century Wooden Ciborium

“…This requires greater care in working on the original works, as well as longer times and higher costs. The use of digital technologies to obtain three-dimensional models and 3D printing makes it possible to work on different scales (e.g., reducing large-scale works to scale), to reproduce details and missing parts, and to obtain an infinite number of reproductions/copies [ 7 , 8 , 9 ]. Through the use of these technologies, it is also possible to create online museum collections, share CAD models and files for 3D printing, and create new multi-sensory museum routes and educational workshops.…”

Digital Fabrication Techniques for Cultural Heritage: A Survey

“…styrofoam or polyethylene foam). Recently, Sanchez and colleagues [SBVVSL*15] proposed an algorithm for semi‐automatic production of customised housing for artefacts using CNC milling machine. The adoption of a milling technology allows to choose the reproduction material (softness, chemical composition) which better fits the characteristics of the artwork to be protected.…”