Rapid prototyping (RP) technology has attracted a lot of attention as an effective tool to compress the new product development process and hence decrease the time to market. As RP technology continues to develop, other systems and processes, such as computer integrated manufacturing and metal injection moulding, are becoming available to industry. One such technology, driven by RP, is rapid tooling (RT) which has the potential to reduce product lead times. RT can be broken into two broad classifications: indirect and direct tooling. In producing a mould tool, for example, indirect tooling would use a master pattern, such as an RP model, to produce the mould cavity, whereas direct tooling would build the mould tool directly from CAD data. The paper reviews the prospects of creating a mould tool directly from a computer model.