Engraving of Conductive Tracks on a Textolite Plate Covered with Copper Foil
Making of a most accurate pattern of printed tracks on a textolite plate. Etching of the plate in ferric chloride.
The course of work:
A copper-coated textolite plate (hereinafter referred to as a workpiece) is degreased with a solvent, after which its metal side is covered with a thin layer of paint.
After the paint has dried, the workpiece is placed on the laser working table and fixed with tape.
The prepared track pattern is inverted into negative (the tracks should be white, and the processed areas should be black).
Laser running. Operating mode: speed 800 mm/min, 30% of power, 1 pass. At this step the laser removes a paint layer on those copper areas, which should be removed.
After the laser processing, the workpiece is placed into a ferric chloride solution. The processed surface down.
Etching in ferric chloride can take from 20 to 60 minutes. In our case, it took 40 minutes.
Now you are all set and you know how to make your own DIY PCB at home or at your workshop