The paper investigates the capabilities of I-DEAS Mechanical Computer Aided Design software (MCAD) on the modelling of artefacts which have got freeform geometry. Freeform geometry is the geometry which uses curves and surfaces, which is not made up of Constructive Solid Geometry (CSG) such as cubes, spheres, and cylinder. To achieve this, an object having a freeform geometry i.e. a mobile handset was chosen, as the geometry of mobile handset is quite typical and challenging and commonly used in day today life. This was done by reviewing the freeform geometry of mobile handset which is being used in industry. After the modelling was complete the mobile handset was rendered. The modelled mobile handset in the software was used to produce a stereo lithography (STL) file format and given for manufacturing or prototyping. In I-DEAS the objects can be manipulated at any time during modelling using the history access and also the modelled objects can be manipulated after stitching . The production of STL file format in I-DEAS of the completed objects take less time.