MEMS CAD tools have been developed for conventional micromachining processes, however, the simulation of the mask projection Excimer laser process has not been researched. © 2017, Beijing China Science Journal Publishing Co. Simulation experiments show that the proposed modelling and optimization for the planar cutting path problem containing multi-layered nested loops is feasible and effective. A greedy algorithm embedded with tabu table is finally presented and called repeatedly to solve the optimization problem, taking the loop cutting sequences and the selection of start-and-end point of each loop into account. Considering the geometry of each loop and the relationship between two loops, the cutting path optimization model is converted to a combination of multiple related dynamic traveling salesman problems. Firstly, a sub-algorithm is presented to identify multi-layered nested loops, which are then constructed as a planar cutting path model based on the four-directional linked list nodes. To solve this problem, this paper proposes an algorithm to optimize the cutting path containing multi-layered nested loops. In the field of planar pattern cutting, various cutting sequences and selection of start-and-end points may result in a big difference in the idle run. Designing on CAD and Manufacturing techniques will be much more benefitted by sharing data between different systems in a firm will let machines learn the trends and patterns and will optimise the process and advance it further. Machine learning can help us to develop the designs which would have minimum errors and after the rescans and checks the AI part of the software will totally eliminate the error.

Prototyping, Reverse Engineering, Additive Manufacturing, Intelligent Management all are the features of the CAD/CAM system. Simulation is also carried out by this system and the challenges in the modern-day world for the survival in the fast changing and growing world can be backed by the integrated CAD/CAM systems. CAD/CAM is the requirement of the every managerial as well as engineering and processing industries weather it is the process or operation handling or the manpower and resource handling or meeting the dead lines of the deliveries. Designing has been well advanced and meets the requirements of the task, not only big but the system of CAD/CAM is sophisticated for the small industries. Integration of the system has given birth to the CAPP, ERP, DNC and Production and development.

CAD/CAM systems work best in the integrated form and they are not only confined to the engineering world but to each and every corner of the process background.

The total sum up and the best review which is conclude is that the CAD/CAM systems are the modern-day requirement.

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