Automatic programming of CNC machining centers is often an easier and more efficient way to program than manual programming, especially for complex parts and multi-axis operations. Automatic programming is usually done using CAM (computer-aided manufacturing) software instead of manually entering G-code (the programming language for CNC programs). Here are some benefits of automatic programming for CNC machining centers and ways to simplify operations:

1. Graphical interface: CAM software usually has an intuitive graphical interface that allows the operator to use the mouse and keyboard to perform operations on the 3D model of the part. This makes positioning parts, generating tool paths and setting cutting parameters more intuitive and easier.
2. Automatically generate tool paths: CAM software can automatically generate tool paths, that is, how the tool moves to complete the processing of the part. The operator simply selects the appropriate tool and cutting parameters and the software generates a tool path for it, eliminating the need to manually write complex G-code.
3. Automatic correction and collision detection: CAM software usually has collision detection and automatic correction functions, which can detect potential tool collisions with workpieces or fixtures and automatically correct them when generating tool paths.
4. Inventory management: CAM software can also help operators manage raw materials (inventory) and cutting strategies for parts to minimize waste.
5. Post-processor: CAM software usually comes with a CNC machine tool-specific post-processor that can convert the generated tool paths into a G-code format that the machine tool can understand.

Although automatic programming of CNC machining centers is simpler in operation, it still requires operators to have certain skills in CNC programming and CAM software. Additionally, operators need to understand the workpiece characteristics and required machining operations in order to properly configure the CAM software and oversee automatically generated tool paths. Automated programming helps increase productivity, reduces human error, and reduces programming complexity to some extent, but operator skill and knowledge remain critical factors.