How is 3D modeling used in product prototyping and testing?

3D modeling is used in product prototyping and testing by digitally creating detailed product designs to enable visualization, simulation, and early issue detection, streamlining development and reducing costs. In prototyping, it generates digital prototypes that can be 3D printed into physical models, allowing designers to evaluate form, size, and fit without expensive traditional methods. In testing, 3D models support virtual simulations like stress analysis, thermal testing, or ergonomic checks, identifying flaws (e.g., weak structural points) before physical production. Overall, 3D modeling accelerates iteration, minimizes physical prototype reliance, and ensures product reliability early in the development cycle.