Direct Answer
An NC1 scribing file carries part marks, layout lines, and piece IDs from the steel detailing model into a machine-readable format. CNC equipment, including beam lines, reads the file to mark members during processing. The exact marks and machine behavior depend on the detailing output and the fabricator’s equipment and settings.
Full Explanation
During detailing, the model carries member identity and geometry. An NC1 export can encode marking information, such as a piece mark or scribing line, alongside member data. CNC equipment interprets the supported data and may use it to mark a member as it is processed. Available marking options depend on the export settings, controller, and machine.
What This Means for Your Shop
Agree on the mark text and format your shop expects before files are issued. Confirm that both the NC1 output and the CNC equipment support the required marking information, then compare a sample file with its drawing before relying on it for production.
Common Mistakes
Assuming every NC1 export carries the same scribing fields, or that every CNC machine reads them in the same way. A part mark also does not replace checking the drawing and file revision.
Recommended Process
At project kickoff, identify the machine or controller requirements and the shop’s preferred part-marking convention. Review a representative NC1 file against its drawing and verify the expected marks at the machine before using the wider file set.