Greetings; On reading one article on the net about ripping up old dvd writers and using the nominally 2 watt laser diode to do some wood burning etc with them, it has occurred to me that there could possibly be a use for those diodes in 'etching' pcb's. The article showed one mounted in a gantry machine, burning wood, from a quite decent distance away from the wood, perhaps an inch or 2.5cm above the surface of the wood. The backblast didn't quite reach back up to the laser to dirty its lenses.
So my question is, to someone who may have tried/done this, is can a 1 ounce layer of copper be burned away rapidly enough so as not to leave a burned, conductive path where the copper was? I ask because I have 3 or 4 old dvd writers that no longer write a usable disk, although the written area can be seen on the throwaway disk. Pack rat that I am, I haven't binned them yet. 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> How many Zen Buddhist does it take to change a light bulb? Two. One to change it and one not to change it. 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
