Realization of reverse engineering for the car body

For those existing physical object without any computer-aided design models or drawings, the reverse engineering is a good choice for reconstructing the related vectored 3D digital model and then rebuild the object. The general process of reverse engineering was introduced and briefly described in this work. Based on the point cloud captured from the physical model car by using 3-coordinant measuring machine, the CAD-model of the model car body is rebuilt and G-code for machining was generated on the software Master cam. A new aluminium alloy model car body was machined through data transformation between machining tool and NC program on the external computer. The studies we have performed showed that related product reconstitute can be realized with this experience and other related research can be done further.