A system is disclosed for use in manufacturing a component. The system may have a build chamber, a stage movable within the build chamber, and a recoater configured to deposit a layer of powdered material on top of the stage. The system may also have an energy source configured to direct a beam onto the layer of powdered material in a pattern corresponding to a shape of the component, and a brace fabricated before manufacturing of the component. The brace may be located adjacent a periphery of the component and extend from the stage toward the recoater.