Virtual clamping, a technique that simulates deformations during clamping, has been introduced to measure large and flexible parts in a free state. This method reduces inspection time and costs, but the reliability and accuracy of this method are still being evaluated. The goal of this thesis is to perform 3D scanning on actual mechanical parts and I have selected impeller parts. I used a Powershape scanner to accurately scan impellers with thin-walled wings and SOLIDWORKS software for scan data modeling.