The aim of this work is to follow the entire value chain of a mechanical metallic hydraulic module that is produced with the additive manufacturing process called Laser Powder Bed Fusion (L-PBF). Different software is used: Siemens NX 12 and Altair Inspire 2019 for CAD, Siemens NX Nastran 12 and Altair Inspire 2019 for FEA and topology optimization, and Materialise Magics 21.11 for support structure creation. A comparison between the software used for CAD, FEA analyses and topology optimizations is presented. The customer provides all the technical information related to the component to perform a structural FEA. After the definition and extension of the design space, loads and constraints are applied on the non-design space and a topology optimization with Solid Isotropic Material with Penalization (SIMP) method is performed.