In CAD/CAM, what does the snap grid do?

In CAD/CAM software, the snap grid is a feature that provides a structured reference for drawing and positioning objects. When enabled, it contains predefined points at regular intervals on the drawing surface to which the cursor can automatically align or "snap" when sketching or placing objects. This snapping behavior helps maintain alignment and spacing, making it easier to create accurate designs.

By snapping to these specific points, users can ensure that elements of their design are precisely placed in relation to one another, thus facilitating the drafting process and enhancing overall design coherence. This functionality is especially vital in technical drawings where precision is crucial, as it prevents unintentional offsets and misalignments.

The other choices refer to functionalities that do not relate directly to the purpose of the snap grid. While activating drawing tools, allowing freeform sketching, and displaying measurement units serve important roles in CAD/CAM applications, they do not specifically describe the snapping mechanism that aids in aligning the cursor with grid points during the sketching process.