ISO 10303-238 STEP-NC Standard
The STEP-NC AP238 standard is the result of a fifteen year international effort to replace the RS274D (ISO 6983) M and G code standard with a modern associative language that connects the CAD design data used to determine the machining requirements for an operation with the CAM process data that solves those requirements. STEP-NC builds on the previous ten year effort to develop the STEP neutral data standard for CAD data, and uses the modern geometric constructs in that standard to define device independen