Making PCB(Printed Circuit Board) by Laser Engraving
Making PCB (Printed Circuit Board) by Laser Engraving.. Use the laser to expose the unneeded parts of a positive acting presensitized PCB in a dark room.. Immerse it into the developer for a while, then remove and wash it.. Etch it with ammonium persulfate solution.. This is one of the easiest way to create PCBs, and the result is quite satisfying!