To help you with reinforcement of a part we developed slicer Aura. Aura algorithms are based on our intuitive vision of how composites should work. You can reinforce external and internal boundaries of each layer of the part with one or several fiber perimeters, so called outer and inner perimeters. You can also reinforce inner space of the part with solid (conventional laminate) or lattice patterns. Such reinforcement is called reinforced infill. Different layers or groups of layers can have different reinforcement.