The results below are only meant as a guide please consult an expert before trying it at home.
Here are my results.
|I used a stainless brazing rod, stuck it in the hole I drilled in my bar and bent it in a U shape around the bottom of my tank|
|Next, I painted some 24 gauge copper plates that I drilled holes in and etched off the paint using the laser engraver|
|Next I added hot, almost boiling water. I then added kosher salt. Lots of Kosher salt. I think it was almost 1 part salt 3 parts water. Just keep adding salt until it stops dissolving. This is your super saturated solution and how the etching works.|
After everything is hooked up I switched on the rectifier and watched closely as the bubbles started to stir things up.
|After about 20 minutes the water looks like this. The brown stuff is just copper. When adjusting things make sure the power is off!|
|Before pulling out my sheet I was careful to shut off my rectifier and un-clip my alligator clips. It was getting pretty deep and the paint was starting to get worn away.|