- Makes artificial eyes and contact lens discs, and makes and repairs spectacle frames and plastic parts of artificial limbs and other orthopaedic appliances.
- Trims, cuts and performs other finishing operations on plastic using hand and machine tools.
- Inspects plastic products for defects, takes measurements and repairs plastic belting and sheathing.
- Monitors controls regulating temperature, pressure, etc. and operates moulding, extruding, calendering, thermoforming and covering machines.
- Weighs and mixes ingredients, loads machine with plastic to be worked or regulates flow from feed conveyor or hopper.
- Prepares machine for operation by affixing any necessary attachments.