Crown moulding encapsulates a large family of moldings which are designed to gracefully flare out to a finished top edge. Crown molding is generally used for capping walls, pilasters, and cabinets, and is used extensively in the creation of interior and exterior cornice assemblies and door and window hoods.
 
In recent times, crown moldings have generally made their appearance as mostly decorated plaster or wooden trim where walls meet ceilings.

Painting Trim

Painting Trim

Steady / "hand eye coordination" enables painters to exceed in both speed and how paint flows. Today's paint dries fast, therefore, if you are able to cut lines straight before paint starts to "set", it always has a nicer edge and looks better to tape lines.

Painting trim