vel murugan: I would suggest you can checkout our Creo Parametric product to create a 3D models.
Of course you can use any 3D cad systems or other modelers. Important is that they should have an interface to some common format as step etc.
We recommend to use the Creo Parametric for following reasons:
It is PTC in house product and there are a lot of tutorial and training available.
It supports directly the PVZ format and no further converting is required.
-Durgesh
