What is the first step in constructing an inspection plan?

The first step in constructing an inspection plan involves selecting the critical and important dimensions to inspect. This step is crucial because it establishes the foundation for the entire inspection process. Identifying which dimensions are critical ensures that the focus is placed on the features that significantly affect the functionality, safety, and quality of the machined part. This prioritization helps in allocating resources effectively and ensures that the inspection process is both efficient and effective.

By determining which dimensions need to be inspected, it allows for a targeted approach that can lead to better quality control and reduced waste. This step is essential before moving on to formulate a schedule or determining which tools are needed, as these elements depend heavily on the dimensions that have been deemed critical. If a plan does not start with this identification, it may result in overlooking significant factors that affect the overall integrity of the machined components.