I'm wondering if there are any usable techniques for etching a PCB (a copper board) without sinking a board into chemicals, by any potential manual/hand techniques.
If there are, I'd like to know about some of them, as well as how costly (if very specialized tools are required), cluttery, and accurate they can be (accuracy in this case should definitely depend on your hand and practice as well), either by your opinion, or if you know a source that already describes all of them, that should be sufficient.
- Comments(1)
A****min
May 23.2019, 10:19:43
You can etch using toner transfer, hydrogen peroxide, vinegar and salt, with nail polish remover to get the black layer off at the end.
Everything else is the same as other toner transfer etching methods. Note that the used etchant is still toxic..You can let the liquid evaporate off but copper is still toxic. So wear rubber gloves. But it doesnt stain things. It takes a bit longer. Its still pretty fast.