A professional who operates machine to stretch plastic sheets to specified dimensions. Respnsibilities include:

• Positions sheet in machine and clamps hydraulic rams to edges of sheet.
• Sets temperature control and starts blowers to heat sheet.
• Adjusts stops on hydraulic rams (pullers) and starts machine to stretch sheet to specified dimensions.
• Removes sheet and places it on table or rack to cool.
• May cut stretched sheet into pieces of specified size, using bandsaw.
• May inspect stretched sheet against grid board to locate distortion-free areas.