Thermoforming uses thermoplastic single or multi-layer sheets of polycarbonate (PC), acrylonitrile-butadiene-styrene (ABS), and polypropylene (PP), or other thermoplastic polymers which provide excellent flexibility and durability. Glass fiber or carbon fiber reinforcements can also be used to enhance strength and stiffness. In this process, a plastic sheet is clamped into position over a mold and heated. Once the sheet has reached a pliable temperature, it is placed on the mold and drawn to shape using vacuum pressure, air pressure, or a combination of both. The part is allowed to cool and removed from the mold for further processing.