> Of course you could use a UV laser diode to expose photoresist or use a L=
D
> to ablate a resist coating, and subsequently do a chemical etch. You coul=
d
> use the laser diode for light while the CNC mill is engraving. You could
> sell the 1W laser diode on eBay and use the proceeds to get a professiona=
lly
> made PCB.. lots of possibilities.

Hot air or other preheat, using LASER as the final straw?

 R
--=20
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