Extend sketch profiles to create extruded bosses to add material and extruded cuts to remove material. Use sketch relations and dimensions to define sketch profiles. Understand some of the options for extruded features. Add material with an extruded boss and remove material with an extruded cut.
When the internal cut features of a model are of most importance in a design, one approach is to create solid features that represent the negative space of a part. Once the negative space is complete, the Combine command can be used to subtract the volume from another solid body. Use solid geometry representing the interior space of a manifold to create the negative space of the part. Create a separate solid body surrounding the geometry as the main body of the manifold. Combine the solid bodies in the part using a subtract operation.
