Would you trust your safety to 3D printed parts? Have you ever wondered about the accuracy of SOLIDWORKS Simulation Topology Optimization? Have you ever wondered about the reliability of these results? Today we will challenge the results from difference Topology Optimization mass reductions on a 3D printed carabiner to verify how true the yield predictions are. We'll simulate, topology optimize, and print a functional ASA carabiner and even test results the solver deems unsafe. It's not fun if nothing breaks, right?