This CNC Laser project, conducted by Industrial Engineering students at Universitas Atma Jaya Yogyakarta, focused on the design, fabrication, and testing of a custom CO₂ laser cutting and engraving machine. The project aimed to provide hands-on experience with Industry 4.0 technologies, enabling students to develop both hard and soft skills through team-based, project-oriented learning. The CNC laser machine was designed to process materials such as wood, leather, and acrylic with high precision and automation.
The project team consisted of 12 students divided into specialized divisions: Project Management, Design, Fabrication, Quality Control, and Secretariat. Each division had clearly defined responsibilities, managed through structured project management tools such as a Work Breakdown Structure (WBS), RACI Matrix, and a detailed Master Schedule (Gantt Chart). This organized approach ensured systematic progress from planning through execution.
The CNC laser was designed using SolidWorks, producing detailed 3D and 2D models of the frame, mechanical components, and electrical systems. Key specifications included a 40W CO₂ laser tube, an engraving area of 30×20 cm, stepper motor control, and support for both online and offline operation modes. The machine was built with an aluminum profile frame and acrylic safety enclosures, combining durability with functionality.
Fabrication was carried out over several phases, beginning with electrical wiring and circuit assembly, followed by mechanical assembly of the frame, laser tube, mirrors, and motion systems. The final stages included installing the control panel, cooling systems, and exhaust mechanisms. Each step was documented, and components were carefully tested to ensure proper integration and operation.
Comprehensive testing was performed to validate machine functionality, including firmware checks, touchscreen interface testing, limit switch operation, axis movement (X, Y), laser power calibration, and safety sensor performance. The team used LaserDRW software to generate and simulate G-code, ensuring the machine could accurately execute engraving and cutting tasks on sample workpieces.
The project successfully resulted in a fully functional CNC laser machine capable of precise engraving and cutting. Students gained practical experience in mechanical assembly, electrical wiring, software integration, and quality assurance. The machine operates using G-code generated from design software and can run independently via an SD card or through direct computer control.
In conclusion, this project not only produced a operational CNC laser system for educational and prototyping use but also equipped participants with valuable interdisciplinary skills in digital manufacturing, project management, and teamwork—key competencies for the Industry 4.0 era. The machine remains a resource for future student projects and continues to support hands-on learning in automation and advanced manufacturing.
