A little bit falls behind my schedule. One model left for Sweep & Sweep Cut Section. Rendering is done after one month. Really need a super computer to do these stuff, but don't have enough money to buy a super computer though, hahaha. I am trying to figure out how to use natural sketch in Catia V5, but I there is not enough information online. That is really a great application for product designer because it is difficult to draw complex surface in Solidworks.