Blender can be used to edit a mesh by deleting vertices, edges or faces from it.
1. Switch to
Edit Mode. Switching the Mode can be done from the dropdown in the bottom bar.
2. Depending on whether you want to delete a vertex, edge or face, choose the corresponding Select Mode. These buttons are placed a few buttons to the right of the Mode dropdown. For example, to delete a vertex click the
Vertex select mode button.
3. To choose the elements of the mesh you want to delete, click on them using the right mouse button. Keep the
Shift key pressed, if you want to select many elements. You can only select the elements of the select mode you picked. For example, in Vertex select mode you can only select vertices.
4. After you have chosen the elements, press the
Delete key. A context menu comes up and you can choose what you want to delete: vertices, edges, faces or all. For example, if you chose a vertex, the dialog is asking whether you want to delete that vertex, or the edges incident to that vertex or the faces incident to that vertex or all of the above. Select what you want and those elements will be deleted from the mesh.
Tried with: Blender 2.62 and Ubuntu 12.04 LTS