On Friday 06 December 2013 13:50:36 David Armstrong did opine: > On 06/12/13 18:10, Florian Rist wrote: > > PS: There was a ns pulsed UV Laser (quadrupled YAG) on ebay recently, > > this would be the right one for the job. I was close to buying it was > > quite cheap. > > > > ---------------------------------------------------------------------- > > -------- Sponsored by Intel(R) XDK > > Develop, test and display web and hybrid apps with a single code base. > > Download it for free now! > > http://pubads.g.doubleclick.net/gampad/clk?id=111408631&iu=/4140/ostg. > > clktrk _______________________________________________ > > Emc-users mailing list > > Emc-users@lists.sourceforge.net > > https://lists.sourceforge.net/lists/listinfo/emc-users > > Gene , > unfortunatly not , copper for one will absorb the heat . > and for a laser to work it realy needs to vaporise the metal , which is > one reason you see dvd lasers burning wood or plastics > rather than a clean cut . > > iv'e try'd copper and even with 600w + it's difficult to even mark it > although the fr4 will burn quite nicely and be nice and crisp and fill > your room with unfortunate toxins > > Dave
Just one of the reasons to have a 4" hose from my dust collector arranged to keep the area clear, and the stink outside, where my home sewn 2' diameter, 10' foot long collector bag lives. > ------------------------------------------------------------------------ > ------ Sponsored by Intel(R) XDK > Develop, test and display web and hybrid apps with a single code base. > Download it for free now! > http://pubads.g.doubleclick.net/gampad/clk?id=111408631&iu=/4140/ostg.cl > ktrk _______________________________________________ > Emc-users mailing list > Emc-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/emc-users Cheers, Gene -- "There are four boxes to be used in defense of liberty: soap, ballot, jury, and ammo. Please use in that order." -Ed Howdershelt (Author) Genes Web page <http://geneslinuxbox.net:6309/gene> Mickey Mouse wears a Spiro Agnew watch. A pen in the hand of this president is far more dangerous than 200 million guns in the hands of law-abiding citizens. ------------------------------------------------------------------------------ Sponsored by Intel(R) XDK Develop, test and display web and hybrid apps with a single code base. Download it for free now! http://pubads.g.doubleclick.net/gampad/clk?id=111408631&iu=/4140/ostg.clktrk _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
