SET WORKERS are a type of film crew member who are responsible for the construction and maintenance of the sets used in a production. They are responsible for building, painting, and dressing the sets, as well as ensuring that they are safe and secure. GRIPS are a subset of SET WORKERS who specialize in the physical aspects of set construction, such as rigging, carpentry, and lighting. They are also responsible for the safety of the cast and crew on the set.