推荐回答（1个）
The purpose of this graduation design is using CAD/CAM software and computer numerical control machine tools to achieve the completion of luminous characters. Firstly, we need to know the working principle of LED lights. Secondly, confirm several methods of how to make luminous characters. The main procedures are as followed. First of all, use CAD software to design the matrix of the characters, and use CAM software to create a processing program. Then apply computer numerical control machine tools to make the real processing. The last procedure is the installation and the debugging of LED lights. Divide all LED lights into several groups, and calculate the voltage and electric current of each group. Select certain electric resistance figure and connect with LED lights, and at the meanwhile, also make connection among each LED lights and each groups. During this procedure, the electric transformer should be adjusted from low voltage to high, and observe the LED lights lighting status. Optics, electricity and computer technology are involved in this design. According the following graduation design, you're going get to know more about the skills of making luminous characters.
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