What does the "Dimension" tool provide in Fusion 360?

The Dimension tool in Fusion 360 is designed specifically to define the size of features in a sketch. When you use this tool, you can set exact measurements for the distances, angles, and sizes of the entities within your sketch, enabling you to create precise geometries. This is essential in CAD design to ensure that parts fit together correctly and meet the necessary specifications for manufacturing.

Setting dimensions not only helps in establishing the size but also enforces constraints that guide how the sketch behaves when you modify other aspects of the design. The appropriate use of dimensions is crucial for maintaining design intent, ensuring modifications to the sketch result in predictable changes to size and shape. Therefore, this tool is fundamental in transforming conceptual designs into precise and accurate engineering drawings.

The other choices are related to different functionalities within Fusion 360. Changing the color of model components pertains to visual modifications rather than dimensional definitions. Limiting the movement of parts in an assembly focuses on assembly constraints, which do not directly define sizes in sketches. Generating a new sketch plane relates to the creation of new sketch contexts, which is a separate feature from dimensioning existing sketches.