Abstract
This paper researches the main technology of open CNC engraving machine, the DXF identification technology. Agraphic information extraction method is proposed. By this method, the graphic information in DXF file can be identified and transformed into bottom motion controller’s code. So the engraving machine can achieve trajectory tracking. Then the open CNC engraving machine system is developed with C#. At last, the method is validated on a three axes motion experiment platform. The result shows that this method can efficiently identify the graphic information including line, circle, arc etc. in DXF file and the CNC engraving machine can be controlled well.
Highlights
With the development of pattern recognition techniques, modern CNC engraving machine needn’t be programmed manually
DXF identification is a key technology of CNC engraving machine
Omirou and Barouniproposed a series of machine codes, with which the advanced programming ability is integrated into the control of modern CNC milling machine system [1]
Summary
With the development of pattern recognition techniques, modern CNC engraving machine needn’t be programmed manually. The corresponding shape will be engraved by the machine immediately. The operating process of the machine is simplified enormously, and the rich programming knowledge is no longer need for operators. DXF identification is a key technology of CNC engraving machine. By reading and recognition of the DXF file, the machining track can be directly generated, so the motion control of the CNC engraving machine can be achieved
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