In the present study a method to screen and develop new materials by using L-PBF (3D-Printing) will be introduced. Up to now, the process of designing and developing new alloys is time-consuming and expensive. That can be significantly accelerated by the Rapid Alloy Development (RAD) approach. This approach describes a new and faster way of creating tailored alloys. New alloys can be fabricated directly by dry-mixing of elementary powders and then processed via LPBF. Thus, a large range of alloy compositions can be quickly produced, analyzed and evaluated. The Al-C-Co-Fe-Mn-Ni system is considered as the investigated material. First, promising alloy compositions are determined by using simulation tools and thermodynamic data bases. Second, different dry-mixed alloy compositions of AL-C-Co-Fe-Mn-Ni are qualified for the L-PBF process in order to screen the alloys. Finally, the various fabricated alloys are evaluated by microstructure analysis (OM, SEM, EBSD, EDX) and mechanical properties.