Step 1 : Important information
Prepare to read the standard disclaimer:
Firstly: The steps outlined in this HowTo are merely for educational purposes. This is by no means the only way to make printed circuit boards. Itís the way I know how and it works for me. For other ways/methods, check out the photo fabrication area at http://www.mgchemicals.com/ (Thanks Russell Watson)
Secondly: Perform the steps outlined here carefully! Bad things happen to good people when you least expect it. The etchant used in this procedure is a corrosive acid (ferric chloride) and should be handled with care. It will permanently stain and ruin any fabric it comes in contact with. It's none too easy to get off your hands either so use of rubber gloves is recommended. It will also corrode any metal it comes in contact with so don't use your nice needle nose pliers to get the boards out of the tank. It's not going to disolve your pliers, but it will deffinatly ruin the finish. (It's acid guys, c'mon!!). Dispose of waste etchant in accordance with your local hazmat procedures. When rinsing stuff off in the sink, use LOTS of water.
Thirdly: I assume no responsibility for anything bad that happens from the following of this procedure. So if you get absent minded and spill an entire tank of etchant on your dog, permanently stain him yellow, and the overflow eats through the floor of your house boat and it sinks, don't blame me.
Fourthly: I apologize for the size of the pictures. Most of them are rather large. I feel it's better to spend a little more time downloading the pictures and being able to see things in detail rather than to have quick downloads and fuzzy pictures.
Lastly: Think safety!! When using the etchant, wear gloves, wear eye protection, and ventilate! Most important, do it somewhere disposable. Don't do it on the coffee table in the middle of your living room, because the cat WILL knock over the tank. Then you have the rest of your life to try to explain to friends and neighbors what the big yellow stain on the carpet is.
ĎNuf said. Letís get to it!