What do dimension values define in blueprint drafting?

Dimension values play a critical role in blueprint drafting as they serve to specify the precise measurements required for parts and assemblies. When dimension values are included in a blueprint, they communicate the exact length, width, height, and other relevant measurements that must be followed during manufacturing or construction. This ensures that the final product meets the designer's intentions and functions effectively within its intended application.

While tolerances, materials, and overall size are important aspects of a blueprint, they are not what dimension values primarily define. Tolerances would indicate how much variation from the specified dimensions is acceptable, materials are specified elsewhere in the blueprint, and while dimension values contribute to understanding the overall size, they specifically pertain to the exact measurements needed to create the component. Thus, focusing on dimension values leads directly to understanding the exact specifications of the dimensions required in blueprint drafting.