An object manufactured by a CNC machine is an example of which type of rapid prototyping process?

CNC (Computer Numerical Control) machines operate by removing material from a solid block or sheet to create a desired shape. This technique utilizes tools such as cutters, drills, and mills to precisely carve out the product, which aligns with the principles of subtractive manufacturing. In subtractive processes, an object is formed by starting with a larger piece of material and systematically removing parts of it to achieve the final design.

In contrast, additive manufacturing builds objects layer by layer, typically using materials like plastics or metals, which are deposited, fused, or cured to create three-dimensional shapes. Integrative and compressive processes are not standard classifications widely recognized in the context of rapid prototyping, thereby making them less relevant in this scenario.

Understanding the specific nature of CNC as a subtractive method is essential in distinguishing it from other fabrication methods, providing insight into the various techniques used in rapid prototyping and manufacturing today.