Originally Posted by
art925
I don't etch copper but here are a few tips, try adding some citric acid to a sample of ferric chloride ro revive it. I also warm my etchant, but find electro etching more consistant. If drawing your own design, most use sharpie paint pens as a resist or nail varnish pens but I have never found them here in NL. To create my resist I use photosensitive / photoresist film and expose to uv light using acetate prints and self drawn images. This way there is no reversal of the image needed as in the laser printer transfer method. Etching is full of variables, explore every you tube there is, you have to find a method in every step that works for your set up.
Have fun.
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