BackgroundThere are many great instructional posts about various methods of etching PCB boards. Most merely describe the process, give a couple pointers but are not very robust and you may end up like me; underwhelmed with your results wondering why you wasted 4 hours on a useless semi-copper plate...By: BruceM1
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from Instructables: exploring http://ift.tt/1GDpHc1
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