The paper deals with design of nesting software package of sheet material ITAS Nesting. The paper considers features of CAD/CAM systems intended for formation of nesting and generation of control program for technological equipment with computer numerical control (CNC). We identified common shortcomings of existing systems. On this base, main features which nesting program complex should have were designated, as well as actuality of its development was proved. The structure of interaction of nesting software complex ITAS Nesting modules is shown and functional of this modules was described. The paper consider common data model of projected software complex as class diagram. The results of the cutting-packing algorithms work, implemented in the software package, for details of complex shape were designated. Comparison with similar software systems of cutting sheet material is given. The paper analyzes the features of CAD/CAM systems for design nesting of sheet material on personal computers and preparation of control programs for CNC manufacturing equipment. Shortcomings of such systems reviewed. The paper presents the structure of the software nesting system ITAS Nesting, intended to form nesting and generate control programs for machine tools with numerical control (CNC). The modules interaction reviewed. The class diagram of software modules of ITAS Nesting is presented. The examples of cutting-packing algorithms used in the software package are shown. Thus, automated systems for cutting materia is reviewed, software package architecture is designed, data model and software package that allows to form nesting for cutting materials with high coefficients of installation is developed.

CNC, shape nesting, software package, sheeting.