>CO2 laser is the wrong wavelength to cut metal. Only a couple percent of the >radiation is absorbed. Great for plastics, though, and many other materials. >With respect to >PCB etching, one thing I've thought about but haven't yet >tried is simply using paint. Apply a thin code of flat black paint as a >resist (I'm guessing enamel would work best) >and let the laser ablate the >paint where you want to etch.
We already use commercial grade pre-photosensitized FR4 laminate, so doing painting and such is not needed. My only concern was that there might be issues of the wave-lengths between the LASER and the laminate being miss-matched, but if the process is actually based on heat then it is a non-issue. _______________________________________________ geda-user mailing list geda-user@moria.seul.org http://www.seul.org/cgi-bin/mailman/listinfo/geda-user
