3D digitalization for patrimonial machines

Nowadays, digital document is becoming the standard way of working: travellers have lighter bags but mainly transmission of such documents is faster, and their use is far more convenient to search into them. Consequently, digitalizing physical paper is also very common: many people own a scanner at home. But what about objects? 3D artefacts also need to be digital. CAD software is nearly always used by enterprises for designing their product. But what about old objects, old machines, 100 years older or even more? These basics of technical knowledge have also to be digitalized. 3D scanning technologies are fully emerging in Industrial Engineering. Our scientific researches are targeted on old objects issued from heritage. We propose to virtualize them. But 3D scanning technologies need to be customized as we are working with patrimony where sometimes it is impossible to lighten the object or to move it. The aim of this communication is to define a methodology using a decision tree with adapted operators for digitalizing old objects respecting patrimony conditions. In addition, we illustrate our research with two examples where it has been used digitalizing technologies.