What is a .XNC file?
An .XNC file is a type of text file specifically used in the manufacturing of Printed Circuit Boards (PCBs). It is saved in the Exchange NC (XNC) format, which is designed to store numerical control instructions. These instructions are primarily XY coordinates that guide machine tools, such as drills, in the precise fabrication of PCBs.
The purpose of the XNC file format is to facilitate the exchange of information between Computer-Aided Design (CAD) and Computer-Aided Manufacturing (CAM) software. This helps in streamlining the process from design to physical production without the need for additional files, making the process more efficient.
The content of an XNC file includes multiple commands, each of which is placed on a separate line. Each line corresponds to a single command that directs the machine tool on how to operate. The commands in an XNC file are required to be in uppercase letters. Additionally, these files can store metadata which provides further details about the drilling process, such as the dimensions of drill holes, whether the holes are meant for mechanical parts or components, and whether the holes are plated or not.
To view or edit XNC files, you can use specific software programs that support this file format. Some of the programs capable of opening XNC files include: 1. **GraphiCode GC-PowerPlace** - This software is used for placing data preparation and verification, which can handle XNC files effectively. 2. **Web** - It's likely that some online tools or web applications might offer the ability to view or manipulate XNC files. 3. **Ucamco Reference Gerber Viewer** - This is a viewer specifically designed for handling files used in PCB production, including XNC files. It allows users to view the detailed instructions and ensure they are correct before the manufacturing process begins.
Using these programs, you can open, view, and sometimes edit the instructions contained within XNC files to ensure accurate production of PCBs.
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