Skripsi
PEMROGRAMAN MENGGUNAKAN KODE G MAKRO (G65) PADA SOFTWARE SIMULATOR CIMCO EDIT V8 UNTUK MEMBUAT KOMPONEN YANG SPESIFIK
The advancement of computer-based manufacturing technology has significantly improved machining efficiency, particularly through the utilization of Computer Numerical Control (CNC) machines. One of the advanced programming features that remains underutilized is parametric programming using the G65 macro code. This study aims to implement CNC programming using the G65 macro and compare its performance with M98 subprograms and conventional NC programming in the manufacturing of three mechanical components: Molding Rubber Coupling, Tube Sheet, and Semi-Open Impeller. The research was conducted using CIMCO Edit V8 as the programming and simulation software, and a CNC Milling GSK218MC-H machine for machining validation using aluminum 6061 as the work material. The methodology includes literature studies, parametric variable design, CNC program development using three programming approaches, toolpath simulation, and comparative analysis of program efficiency based on line count and machining time. The results show that the G65 macro programming approach is the most efficient compared to M98 and conventional NC. In the machining of the lower Molding Rubber Coupling, the G65 macro produced 218 lines of code with a simulation time of 111.19 minutes, whereas M98 produced 220 lines with 147.41 minutes, and conventional NC resulted in 282,235 lines with 390.02 minutes of machining time. The G65 method also demonstrated superior flexibility in program modification and reuse. It is concluded that G65 macro programming offers the highest efficiency, a more compact program structure, and excellent flexibility, making it recommended for implementation in vocational education and modern manufacturing practices.
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