Research, design and manufacture CNC printed circuit board milling machines for training

Abstract

At present, all of machines are indispensable for the electronic circuitry to control them. Engineering students are trained processing of designing electronic circuits on a computer and make printed circuit board. For the printed circuit board manufacturing stage after the design file is available, most students use manual methods, performing chemical corrosion. This leads to the printed circuit board after manufacturing does not guarantee the accuracy because when the circuit is chemically corroded, it would be incomplete corrosion or excessive corrosion. This will affect the quality of the printed circuit after fabrication, and the circuit may not function correctly. If using a CNC machine (Computer Numerical Control machine) to perform circuit milling and component foot drilling, it will ensure better accuracy and quality of the circuit. In the content of this research paper, the author research and manufactures CNC printed circuit board milling machines for training students of University of Transport Technology.