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>I think you'd have a lot better luck with the laser on an X-Y gantry. Even then I don't think you could burn off resist with even a 1W diode, but I've thought about trying to make a photo plotter for UV resist.
>
> But I do like the idea in principal and I am planning on upping the
> energy quite a bit by installing a 1W laser diode (IR or blue) and
> trying paint evaporation again. It may just work on a thinnest (0.7
> mil's the thinnest?) PCB I can find...
>