Vacuum forming also known as thermoforming is a process utilising a sheet of plastic which is heated and placed over a shape, a vacuum is then applied forcing the plastic to conform to the shape. When cooled the plastic retains the shape. Vacuum formings are commonly used for packaging, displays, prototypes and industrial components.
Aluminium tools created using cnc milling from information supplied and interpreted from sketches, CAD files or reverse engineered from parts. Very fine finishes can be created for use with thin materials.