QR code in dxf

[froussel]

I would like to use a CNC machine to engrave qr code with a cylindrical milling cutter 2 sizes.
Would it be possible to have a dxf file of the tool path allowing to obtain a machining image as given in the attached file?

[Schallbert]

Hi @froussel

I might be a little late in the game, but I have developed a piece of software that generates CNC machining G-code from a QR-code. All you enter is the text to be encoded, your tool properties, and engrave parameters and off you go. It is called QR-codengrave.
The tool paths don't look as sophisticated as the above image (yet) because I kept the tool path algo simple, but maybe it's still worth a try. Here's the download link.

Cheers,
Schallbert