What does "dimensioning" refer to in technical drawings?

Dimensioning refers to the process of indicating the measurements and specifications of features on a technical drawing. This is critical for ensuring that everyone involved in the manufacturing process understands the exact size, shape, and location of parts as intended by the designer. Accurate dimensioning provides the necessary information for machining, assembly, and inspection, allowing for precise construction and fit of components.

In contrast, creating 3D models involves using software to simulate objects in three dimensions and does not specifically convey the necessary measurements that dimensioning provides. Outlining boundaries for manufacturing processes relates to establishing limits for operations rather than specifying detailed measurements. Sketching component placements focuses on layout but lacks the formalized and standardized approach that dimensioning employs to convey essential measurements and specifications on a drawing.