Fred 453 Posted April 28, 2013 Share Posted April 28, 2013 I've spent a lot of today experimenting with PCB etching as it's not something I've done before. To be honest the day has been pretty much a waste of time. I've CNC milled PCBs in the past without a problem but etching has been winding me up. I'm using pre-sensitised UV resist board and I've had some success. It turns out that sticking the board on top of my van under some fluorescents works better than UV exposure though. However, it's the etching that killing me. I tried a Ferric Chloride and sponge technique and it hardly etched at all. I tried some Sodium Persulfate that came with a starter kit and very little there. In desperation I heated it up by putting the tray (incl. small PCB) in the microwave. Yeah - I know, but my wife's away for the weekend so she'll won't find out. The etch was very slow and hence mostly dissolved the traces too. I'm going to try a larger tray of Ferric Chloride next. Anyway, I know there are lots of guides out there so I'm not really after any advice (unless you'd like to). I'm just venting my frustration. Does anyone else bother or do you all just get them made properly? Prices aren't great in the UK and I (normally) like doing stuff myself. Quote Link to post Share on other sites
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