NEW ORLEANS – Additive manufacturing startup Rosotics announced plans Jan. 14 to halt sales of its metal 3D printer Halo to focus on building a fleet of orbital transfer vehicles. “We intend to produce heavyweight infrastructure to stay in orbit long term: a propellant depot, a power plant, a shipyard,” Rosotics CEO Christian LaRosa told SpaceNews. “The way to do that is beginning to be unlocked from platforms like Starship and the platform that we will operate.” Halo, Rosotics’ machine for printing large structures, combined with the company’s expertise in…