Mustofa,

I am assuming you need info about how to digitize a part on a CMM, create a CAD model and finally use the CAD model to drive the CNC machine.

You would like to do this when a part has complex surfaces that cannot be described by prismatic shapes (cylinders, cones, planes, etc.)

I have done this in the past for some parts that did not have an accurate print. The parts were being formed correctly by the die so I digitized them and created a Pro/E solid model in order to create a new print. The solid model could be used to CNC a new die.

I have a well established procedure to digitize parts using the CMM QUINDOS software and Pro/E. I am not very familiar with CNC software but I believe that the CAD model must be fairly good to work properly. That means that all surfaces must join correctly without gaps or overlapping. I am able to create a CAD solid model from the digitized parts which by definition must have all surfaces joined correctly so it should work in CNC software.

Take a look at this page and if it is along the lines of what you are looking I can give you more info.

http://home.san.rr.com/cms/current.htm