What is the purpose of the Extrude feature in SolidWorks?

The Extrude feature in SolidWorks is primarily used to generate a 3D shape from a 2D sketch by adding depth. When you create a 2D sketch on a plane, you can use the Extrude function to extend that sketch vertically or in a specific direction, converting it into a three-dimensional object. This process allows for greater design flexibility and is foundational for creating parts that can be further modified or combined with other features.

This capability is essential for designing solid parts, as it enables engineers and designers to realize complex shapes that start from more simplistic 2D profiles. For example, a circle can be extruded to create a cylinder, or a rectangle can become a block. The ability to specify the depth of the extrusion provides control over the final dimensions of the part, making it a versatile tool within SolidWorks for 3D modeling.