Taking additive manufacturing as the goal, taking the gear parts commonly used in mechanical engineering as an example, the bitmap of gear parts is processed and the pixel coordinate information of cross-section contour is extracted based on MATLAB software. The extracted pixel coordinates are saved in the external text file, and then combined with UG software platform, visual is used Studio 2012 carries on the deep secondary development, through programming to realize the reading, creating and curve fitting of data points in UG software, and finally realizes the reconstruction of 3D CAD model of parts.
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