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This is a question Amazing Projects

We here at B3ta love it when a plan comes together. Tell us about incredible projects and stuff you've built by your own hand. Go on, gloat away.

Thanks to A Vagabond for the suggestion

(, Thu 17 Nov 2011, 13:12)
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Ferric Chloride
It's not obvious how you get the images onto the board in the first place. I know Maplin sells a pin for such things but it's not going to look very good (or even work) with my wobbly hands.
(, Fri 18 Nov 2011, 13:49, 1 reply)

I print the image to old magazine paper (it comes off easier in water), then wrap it around a sheet of A4 and feed it through my laser printer. I then iron them on to the board with a normal clothes iron. It's just about the only time I've ever used one.
I'm experimenting with an old laminator. If I get get that working I have a more automated process - and one that isn't quite as hit or miss. I miss about 20% of the time, which means scrubbing the toner off the copper and starting again. If I can eliminate this bit, then all the better.
For the etching, I'm using Ammonium Persulphate - 1. because it's a clear liquid so you can see the etching working, and 2. Because it doesn't stain everything it comes into contact with like ferric chloride.
(, Fri 18 Nov 2011, 14:03, closed)
Makes a lovely cocktail with some baileys and blue curacao too.
disclaimer: this might not necessarily be a lovely cocktail
(, Fri 18 Nov 2011, 16:05, closed)
"Etch-resist" pens could be your answer.
It's what we used in my apprenticeship. You can get them in Maplins and cheaper just about anywhere else.
The main problem I had was breaking the tiny 1mm drills, but at least I didn't have to pay for them.
(, Sat 19 Nov 2011, 20:32, closed)
To be honest
I made a few more last night with HELLO 90 gram ART paper. It's a bit more of a bastard to come off once ironed on but the results are so much better. No broken lines and it works perfectly. I think the key is the paper. I nicked a etching pen from work in case I had broken lines. So far, I haven't had to use it.
(, Sat 19 Nov 2011, 20:42, closed)

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