Desenvolvimento de uma mesa fresadora didática utilizando comando numérico computadorizado para produção de placas de circuito impresso

Abstract

The present study aimed to develop the design of a CNC milling machine for making printed circuit boards, to be used in the laboratory, facilitating the understanding of programmable numerical commands and assisting in the preparation of quality plates. Initially, a bibliographic review was carried out on the main concepts about CNC milling and printed circuit boards. According to the literature, CNC systems can be inserted as a differential in the printed circuit board manufacturing process by the result presented in the application. Conclusion: The project was built to meet a didactic demand for university students. Therefore, it presented a low cost with a budget of R $ 462.00, and also with donation and reuse materials. The project was divided into three parts: electrical, mechanical and programming. The electrical is the connection between the electrical components, motors and plates. Mechanics are the entire structure of the CNC, where the motors, guides and spindles are. The programming performs the movements of the CNC machine and the machining through the software communication interface programs with the hardware. The positive point of this project was, in addition to facilitating didactics in the classroom, also the possibility of making practical classes more interesting and objective, allowing more projects to be developed in the laboratory by students.