What are the three generations of lean pipe design software?

Based on the current usage habits of most lean tube technicians, the design of the third-generation lean tube (also known as the line rod) primarily utilizes 3D design software: SolidWorks and AutoCAD.

- SolidWorks: Widely used for 3D modeling and assembly design of third-generation lean tubes, it supports parametric design, structural strength simulation, and provides editable model files (e.g., `.sldprt`, `.sldasm`).
- AutoCAD (or other CAD software): Although traditionally focused on 2D drafting, it remains one of the most widely used tools in engineering design, suitable for creating layout diagrams of workbenches, trolleys, material racks, and more.

In addition, some platforms also offer universal 3D models in STEP format (`.stp`), which can be opened and edited in various CAD software, catering to broader compatibility requirements.
Based on the current usage habits of most lean tube technicians, the design of the third-generation lean tube (also known as line rod) primarily utilizes the following types of 3D design software: