A professional who tends machine that combines paper and plaster to form continuous ribbon of wallboard (plasterboard). Respnsibilities include:

• Inserts shaft through paper roll, places plates and collars over ends of shaft, and secures collars with wrench.
• Mounts and aligns rolls of paper in machine racks, using hoist.
• Threads paper through guides with unsized surface next to plaster.
• Starts and monitors machine for alignment and defective paper, such as pinholes, rough surface, mill splices, and soiled areas.
• Stops machine to cut defective paper from roll and splice ends by overlapping them and to splice exhausted paper to new roll.
• Records identifying number, weight, and amount of paper wasted for each roll.