What defines subtractive manufacturing?

Subtractive manufacturing is characterized by the process of removing material from a solid block or piece to achieve the desired shape or geometry. This method involves cutting, drilling, milling, or grinding away material, which can be seen as "wasting" material since the excess material is removed to create the final product.

This process is distinct from additive manufacturing, where material is added layer by layer, making it critical for understanding the fundamental differences in manufacturing techniques. The focus in subtractive manufacturing is on the precision and control of material removal, allowing for the creation of complex shapes and fine details.