Zuluninja
Gold Member
- Joined
- Aug 25, 2009
- Messages
- 2,799
I have done the salt-vinegar-cell phone charger etching and deep etch of maker marks with acid for a while, but I have decided to try my hand at an old school technique while simplifying the materials used. It's called aguafuerte in spanish, and it involves the preparation of an acid-resistant ink and dipping the blade in acid. It requires a steady hand and drawing knowledge. I'm constantly amazed by the work of Antonio Montejano, the guy does simply stunning etching-engraving with this method.
Well, I decided to try it with simpler stuff. I taped the tip of my stripped BK4, drew a simple design on it and cut away with a hobby knife. I had to keep in mind that I had to take the tape off the areas that would not be etched first (this is my 2nd try, first one got a little bit messy
). These areas then got covered with a printed circuit marker fluid (acid-resistant ink). After letting it dry, the areas to be etched get the tape removed from them. It's pretty much like doing a stencil, but I have tried stickers and spray paint before and didn't like the results.
Making sure that the marker ink is dry, I proceed to saturate the design with PCB etchant with a q-tip and keep on dabbing it whenever I see it starts to get dry for a couple of hours.
the "stencil"
the result, after a light sanding with 400, 600 & 800 grit
I will try another design on the other side using the salt-vinegar-electric charge method and compare the results to see which one I will keep on doing. Hope u likey
Well, I decided to try it with simpler stuff. I taped the tip of my stripped BK4, drew a simple design on it and cut away with a hobby knife. I had to keep in mind that I had to take the tape off the areas that would not be etched first (this is my 2nd try, first one got a little bit messy
). These areas then got covered with a printed circuit marker fluid (acid-resistant ink). After letting it dry, the areas to be etched get the tape removed from them. It's pretty much like doing a stencil, but I have tried stickers and spray paint before and didn't like the results. Making sure that the marker ink is dry, I proceed to saturate the design with PCB etchant with a q-tip and keep on dabbing it whenever I see it starts to get dry for a couple of hours.
the "stencil"
the result, after a light sanding with 400, 600 & 800 grit
I will try another design on the other side using the salt-vinegar-electric charge method and compare the results to see which one I will keep on doing. Hope u likey
