ADRIAN MOTOMANCEA, ANCA BUCURESTEANU, DAN PRODAN EXECUTION OF NON-METALLIC OR METALLIC DUPLICATES, CAST WITH 3D SCANNERS AND 3D PRINTERS In this paper, the authors show a part of research works performed on the use of 3D scanners and 3D printers to execute the molds required for the cast of parts with complex surfaces. 3D scanning allows copying of certain surfaces in our environment, based on existing models. The finished parts may also be executed from metals that are relatively easy to cast (bronze, aluminum etc.). In order to execute the molds destined for the casting, various pieces may be scanned, with a volume size in the range of <150x150x200 mm3 ÷ 500x500x2000 mm3>. Plastic model printing is performed depending on the capacity of the 3D printer used. This paper shows the results achieved with general-purpose scanner and printer, valued at affordable prices.