Editing Existing Geometry and Creating New Geometry
As you work through your projects, a common consideration is when to create new Geometry, and when to edit existing Geometry. This will all depend on what objects you are creating, where you are in the workflow, and what shared data or distances you might have between different objects.
The number-one thing to remember when working on your model is to separate different objects into Groups or Components—if they are not the exact same material in the real world, then they should not be stuck together in SketchUp. Of course, there are always exceptions to every rule, but this is a good one to follow 99% of the time. Even if multiple objects will eventually be glued together in the real world, they can always be Grouped in Nested Groups in your SketchUp model.
Note
One exception to this might be a picture frame that is made up of four connected pieces of wood. If we consider the picture frame to be one “object...