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For CNC milling we have code such as Grbl Controller in the PC, and Grbl itself in an Arduino, and these handle the appropriate G-code files. Is there an equivalent package to handle Excellon files and drive a 3-axis drilling machine?

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  • Most PCB software will export to Gerber-files. There is already software that does pcb milling, including hole-drilling. I'm not into this stuff, but a google search for "gerber cnc" might give you better results.
    – Gerben
    Jul 16 '15 at 12:59
  • Thanks Gerben. I will look into the pcb milling packages. If there is one that will talk to Grbl and if it has a sub-menu that will handle a drill file as a separate operation, then that could be the easiest way to go.
    – Roger
    Jul 18 '15 at 11:15
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No, there is no existing Arduino library to parse Excellon format drill files in order to control a drilling machine. Looking at the specification it looks to be very similar to G Code, and some brief googling shows that there are various utilities for converting it to G Code that could be run from something like grbl.

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  • Thanks Jake. See my comment to Gerben. If there isn't a direct pcb package, then yes, I guess I'll have to do an Excellon --> Gcode then through say, Grbl Controller --> Grbl.
    – Roger
    Jul 18 '15 at 11:21

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