Thanks :) I put the code here - https://github.com/anfractuosity/cryptokeyring you can specify the image to encode along with a key should you wish. It makes use of freecad's python api.
And generates .dxf files which you can give to a laser cutting service. I tried to make sure the dots weren't too close to avoid issues with cutting.
And generates .dxf files which you can give to a laser cutting service. I tried to make sure the dots weren't too close to avoid issues with cutting.