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  • CarlaG41 commented on TechnicalKid's instructable PCB etching (prototyping)1 week ago
    PCB etching (prototyping)

    The UV exposure part is always tricky, getting correct time etc. If you have a laser printer then you can use film from Maplin, print to film, iron onto plain copper board, etch. Much quicker and simpler, you can easily make double sided by having 2 films joined like an envelope with plain copper double sided board slid in between for ironing.You use laser printer to print on standard paper, iron that onto plain copper and soak off paper, but so far I've not had good results with this.I use Ferric Chloride for etching (available from Maplin or Amazon).But these are niceties, overall very good instructions.

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