With OpenARMS (Open Adaptive Repair & Manufacturing Software), BCT GmbH provides a flexible software solution for adaptive machining. OpenARMS compensates for both individual deviations from normal shape and imprecise clamping positions. This is achieved by automated measuring and processing to create geometrically adapted NC programs. BCT’s adaptive machining technology has been used successfully for quite some time in the manufacture and repair of aero-engines. Using adaptive machining, many automation tasks in composite manufacturing can be accomplished with geometrically adaptive machining; e. g. for sacrificial machining or machining of mating surfaces to minimize shimming operations. BCT offers stationary and mobile automation solutions for scarfing of composite structures in the re-work and repair sector. These solutions dramatically shorten aircraft-on-ground times and substantially improve the quality of repair preparation.