Re-etching traces


My last PCB turned out pretty well except in just two spots where the end mill didn't remove all the copper.  I didn't want to redo my entire PCB with a deeper cut, so I found a program that can visualize the gcode and you can click on a line segment and it will highlight the corresponding gcode.  With this program I copied the gcode I wanted to a new file and re-did only the two sections.  The program is NC Corrector, and it's free.