Burning wood, and etching metal are two different things. 30W lasers have a hard time etching Aluminum without a special paste applied to the part. I don't think a 2W laser diode will do much to a PCB except maybe blacken it a bit.
Thanks, Billy On 12/06/2013 12:55 PM, Gene Heskett wrote: > 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 -- Billy Huddleston Inner Vision *William Huddleston Inner Vision Development Corp* Office: 865.560.2752 Fax: 865.560.2703 http://www.ivdc.com *Development and Consulting... Simplified.* <http://www.facebook.com/pages/Inner-Vision-Development/120023721424> <http://twitter.com/ivdc> <http://www.linkedin.com/in/ivdccorp> ------------------------------------------------------------------------------ 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
