It has been many years since we made an article on our Photo Etch Circuit Board Process. Next time I make some boards I will definitely use hydrogen peroxide and muriatic acid as by copper etchant. I have been using ferric chloride for many years but it is very messy and is quite expensive. In the video above Daniele Nicolucci shows a nice step by step process of making a DIY Photo Etching PCB. He uses a transparency just as we do to use as the mask when exposing the photo sensitive copper clad board but I was surprised to see that he preferred to use his inkjet printer output instead of his laser printer output. I have always got better results using my laser printer.
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