STL systems and colour for the reproduction of cultural artefacts

In this paper we discuss and review the available STL systems and its suitability in the colour reproduction of cultural artefacts. Such systems in the past were largely associated with the computer-aided design (CAD) and manufacturing industry. These systems are categorised as one of the methods in the rapid prototyping (RP) process in manufacturing, and were initially limited in its build material. Over a short period of time, various build materials and RP machines appeared, providing greater selection for quick parts fabrication. Advancements in computing, screen and display, and manufacturing technologies over the past two decades have now made STL systems more affordable and are readily available to the consumer market. One of the applications of STL system is towards the digital preservation of cultural heritage artefacts.