![]() Instead of using a G-code program, the controller takes cutter location (CL) commands directly in order to perform the required machining tasks. The interpreted programming environment integrates STEP-NC data with CNCs at a deeper level. The indirect programming environment was developed based on the lowest level of integration between STEP-NC and CNC machine which provided limited advantages over G-code. Researchers have focused on different ways to enable deployment of STEP-NC standard on modern CNC architecture. Since the tool-path generation is achieved by the controller and STEP-NC provides high-level data in a formal standardized data format, it becomes totally transferable across different systems. The information contained in a STEP-NC file can be transferred to an intelligent controller in order to create the suitable tool-path based on the parameters available. Unlike G-code, STEP-NC specifies the machining processes based on the machining features. ![]() However, this still left a gap of data transmission between CAD/CAM systems and CNCs in order to achieve a total interoperable manufacturing environment, hence, the development of ISO 14649 (STEP-NC). The development of ISO10303, commonly known as STandard of Exchange of Product model data (STEP), has shown true benefits and possibilities in terms of standard form of data exchange among the whole product process chain. ![]() This standard has led to a bottle neck situation of total Computeraided Design (CAD)/Computer-aided Manufacturing (CAM) integration and data exchange between different parties. The data model stipulated by ISO (International Organisation for Standardisation) 6983, otherwise known as G-code, was developed to program and control such machine tools. ![]() Computer numerical controlled (CNC) machine tools have been developed for machining parts with complex shapes since the 1950s. ![]()
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