A professional who sets up and adjusts mixers, feeders, rollers, cutters, and other equipment to fabricate wallboard and lath. Respnsibilities include:

• Sets edging bars, rollers, and scoring cutters to ensure that wallboard produced attains specified width and thickness, using rules, gauges, and handtools.
• Adjusts paper guides, glue feeders, chamfering wheels, and stenciling machine so that board edges will be smoothly sealed and markings legible and evenly spaced.
• Regulates flow of material into mixing machine.
• Observes machine operations and adjusts setup on basis of factors, such as atmospheric conditions, slurry composition, and line-speed requirements.
• May test slurry for consistency, using scale and by feeling it.