What does the Boss-Extrude feature do in SolidWorks?

The Boss-Extrude feature in SolidWorks is fundamentally used to add material to a part by extending a 2D sketch into 3D space. This process allows users to take a flat geometric profile created in a 2D sketch and, through the extrusion command, extend it outward to form a three-dimensional solid feature.

This feature is essential in part modeling, as it enables the creation of various shapes and structures that are foundational to product design. The user can define various parameters during the extrusion, such as the depth, direction, and whether it includes a draft angle. The ability to add material in this way not only helps in creating complex solid geometries but also increases design flexibility and efficiency in the modeling process.

The other options refer to processes that are different in nature. For instance, cutting material from a part relates to the Cut-Extrude function, which is specifically for removing material rather than adding it. Merging multiple parts into one solid typically involves the Assembly feature or a Combine feature, rather than a Boss-Extrude. Lastly, creating a 3D sketch from a 2D profile is a different function altogether and does not utilize the Boss-Extrude feature. Understanding these distinctions helps clarify the role and function of