Place the copper piece in the container full of water and salt solution bending the edge of the copper long piece like an hook and hanging the piece of copper you want to etch in about the middle part of the container.
Salt water etching battery charger.
Take the other alligator clip and attach one end to the negative part on the battery my green clip.
Place the steel wire inside of the container on the opposite side of the copper with the ring touching the bottom.
Metal etching with salt water and battery charger duration.
Vinyl mask for salt water etching copper duration.
Etch your name in metal.
I find that you need to get it wet enough that it isn t just moist but it isn t dripping wet.