The recent increase in space activities, particularly in Low Earth Orbit (LEO), brings significant attention to the issue of space sustainability, concerning the impact of these activities both on orbit and on Earth. One of the solutions identified by the scientific community is space additive manufacturing, which would allow for the recycling of space components already in orbit, that would otherwise become debris, as well as reducing the launch mass of satellites, thus optimizing the payload of space launch vehicles. A project led by the European Space Agency, called Metal3D, involving an industrial consortium headed by Airbus Defence and Space, aims to demonstrate the feasibility of using in-orbit additive manufacturing for the production of metallic parts.