Would you trust your safety to 3D printed parts? Have you ever used SOLIDWORKS Simulation Topology Optimization? Have you ever wondered about the reliability of these results? Today we challenge tools from the Simulation Professional package as well as the strength of Polyjet prints on a Stratasys J850 Prime with Digital ABS. We'll simulate, topology optimize, and print a functional Digital ABS carabiner, claimed as safe to hold a person's weight and actually test it by hanging from it. Will it hold?