A python program to convert an image into halftone. Generates gcode for your CNC mill. Check the new interactive drill pic 2 from here: https://github.com/mattvenn/cad/tree/master/tools/drillpic2 updates: download the python file from my github https://github.com/mattvenn/cad/blob/master/tools/drillpic/drillpic.py then have a look at the command line options before running to create your gcode. The image here shows the kind of output to expect. The further you are away the cooler it looks!