PC board milling?

[Alberto di Bene]

What about putting a well focused laser diode of a few W in place of the pen on a paper plotter ?
The pen-up and pen-down should be translated into OFF/ON command for the diode, but apart
from this, I don't see any other major changes...   of course the laser diode will just engrave the
isolation lines between the tracks, it would be impractical to vaporize big areas of copper  .

Did anybody try this ?

73  Alberto  I2PHD