Which feature is used to create a 3D solid from a 2D sketch in SolidWorks?

The feature that creates a 3D solid from a 2D sketch in SolidWorks is the Extrude Boss/Base. This feature takes a 2D sketch and extends it linearly along a specified direction to produce a three-dimensional shape. It is one of the most fundamental and widely used methods in SolidWorks for turning simple sketches into complex solids.

The user can define the depth of the extrusion, as well as various options such as direction and draft angle, depending on the design requirements. This makes the feature very versatile and essential for building the basic forms of 3D models.

While other features like Revolve Boss/Base and Loft Boss/Base can also create solids from 2D sketches, they operate under different principles. Revolve Boss/Base is specifically used to create solids by rotating a 2D profile around an axis, which is suitable for symmetrical objects like cylinders or cones. Loft Boss/Base creates solids by connecting multiple profiles along a path, allowing for more complex and non-linear shapes. Shell, on the other hand, is used for hollowing out a solid body rather than creating a new one from a 2D sketch.

Understanding these distinct characteristics of solid creation features in SolidWorks allows users to choose the most appropriate method