Hi is it possible to rotate part of a mesh but without any stretching (I understand weight painting a little) For instance I want to be able to animate just the radar dish around the z axis. Is this doable and is there a fast way such as through a vertex group?
Two (of many) ways to do it:
Select the radar in edit mode and press P to have it separated in a new object, and animate the whole object, without even the need of an armature.
Create an armature which has a "Radar" bone, parent (Ctrl P) the mesh to the armature and choose "with empty groups" option, then in edit mode select all vertices of the radar, select in the properties panel the newly created "Radar" vertex group and click the "assign" button.