This is a little CNC GCode scanner program I made to solve a problem at a previous employer. It’s a simple program that scans a folder and any subfolders full of text files and finds minimum & maximum values within each file, then it highlights found text a specific color according to the min/max values and colors set by the user.

My inspiration for this project came from observing the the machinist who runs the CNC at my previous employer, before machining he inspects each file individually using Ctrl+F in Notepad. Not only does this take lots of extra time, but it introduces the risk of accidentally skipping a file and missing a bad CNC movement code, causing a costly crash.

This program is especially useful for shops with CNCs who export dozens of GCode programs all at once since it can inspect an unlimited number of GCode files at once and display min/max values all in one easy to read window.