This is a 3D simulation of Numerical Control Tube Bending Machine that I have been working on.Program. Currently, the entire program is written in C ++/CLI, and the interface is. net controls (the color must be consistent with the previous project, so it is ugly), the 3D part uses OSG for display, and the control uses managed C ++ for programming to interact with OSG. 3D Machine tools use SolidWorks for modeling and export to the formats supported by OSG. The jigs are generated using the object Boolean operation and can be parameterized. The process flow is generated by another team's project, and then the conversion cost program can recognize the format for action simulation. This program applies C ++/CLI technology in a large number to maximize the advantages of the. NET platform. In the future, it will conduct more bug debugging and Optimization on the program.