This demo video shows a portion of lesson 1 that introduces personnel to basic thermoforming methods, types of thermoforming machines, the structure and properties of plastic including the characteristics of semi-crystalline and amorphous plastic and effects of temperature on the plastic sheet. Plastics are materials that have their own unique properties. Well-regulated control of plastic temperatures will minimize plastic degradation, shrinkage and contribute to part thickness uniformity and improve over all part quality.