CNC programming involves creating a digital set of instructions (via G-code or M-code) that directs the CNC machine’s tools and movements:
- First, a 2D/3D CAD (Computer-Aided Design) model of the part is created.
- The CAD file is converted to CAM (Computer-Aided Manufacturing) software, which generates toolpaths (the path the cutting tool will follow).
- The CAM program outputs G-code (e.g., “G01” for linear movement, “M03” for spindle activation), which is loaded into the CNC machine.
- The operator verifies the program (via simulations) before running the actual fabrication to ensure accuracy.