To capture 3D scan data for quality inspection, the components often need to be supported by a fixture which allows repeatability of position within the scan volume, while also allowing the maximum optical access across the whole surface of the component. The design of the fixture requires an understanding of metrology and the scanning process. As well as the repeatability and optical access requirements, elements such as thermal expansion effects need to be taken into account to ensure a robust design. Physical Digital designs fixtures for components where we are delivering a complete turn key measurement, inspection and reporting service. We also use this knowledge to design and supply fixtures for clients who do not have in-house design and manufacture capabilities.