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| Video on board etching |
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| Brass_Machine:
I remember there being a discussion about PCB etching... here is a video I just got the link for... |
| John Rudd:
Thanks for posting.. Not bad... A couple of tips for those thinking of doing their own.... I use Ferric Chloride for etching my own boards, but I heat it first in a microwave oven, this and agitating the board results in a board being etched in a lot less time than the demonstrator states... After the board has been etched and cleaned I use Tin Plating crystals to add a tin plate coating onto the track...aids soldering and protects the copper from tarnishing... I find the hardest part is drilling the holes...My eyesight isnt as good as it was 20-30 yrs ago :( |
| Brass_Machine:
--- Quote from: John Rudd on March 10, 2010, 01:55:20 PM ---... I use Ferric Chloride for etching my own boards, but I heat it first in a microwave oven, this and agitating the board results in a board being etched in a lot less time than the demonstrator states... After the board has been etched and cleaned I use Tin Plating crystals to add a tin plate coating onto the track...aids soldering and protects the copper from tarnishing... --- End quote --- I do the same microwave/agitating bit. Goes much faster. Tell me more about the tin plating?? Eric |
| John Rudd:
Eric, Basically you take tin plating crystals dissolved in hot water ( 50deg C) place the board in the solution and the copper is coated with a layer of tin...Takes up to about three hours depending on the thickness of the plating you want... Not sure if its available across the pond but I would have thought so from RS or Farnell.. |
| Bernd:
Eric, I did a google. Lots of places here in the US. Wish I could remember what I used back when I did circuit boards. Maybe it'll come to me. Bernd |
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