Additive Manufacturing (AM) technologies are used in several fields like aerospace and automotive industries, medical, architecture and many more, and their benefits, widely known, include customization, complexity without added cost, reduced material waste, and efficient prototyping. Despite various advantages, a major problem that limits the wider application of AM is part thermal deformations, that results in parts not being dimensionally complaint; implying the possibility of required iterative trials to obtain the expected results. As a solution, forecasting of deformations can overcome this problem; in fact providing accurate prediction during simulation-phase of the project, gives the opportunity to take actions to correct or alleviate the effects e.g.