Certain polymers are reinforced with glass fibres, carbon fibres and other additives in order to enhance their properties. The enhancement in the mechanical properties of any polymer will tend to a favourable condition of its machinability like any other alloys. This article focuses on the design of drilling fixture to produce a recess that is an internal feature, that could not be incorporated in the injection moulding tool. To design any fixture there are fundamental concepts that are to be followed, but to avoid the error in dimensions or in the tolerances or the design itself, computer aided fixture design is one of the best ways to develop the fixtures. This allows the manufacturers to virtually simulate, minimize errors and ensure human safety as well.

Keywords : Design, Drilling Fixture, Nylon-66, Virtually Simulate, Injection Moulding, Fool-Proofing, Fits