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Subject: Re: [Homebrew_PCBs] Some etched Artwork finished and questions on electrolytic etching

From: Malcolm Parker-Lisberg <mparkerlisberg@...>
Date: 2013-09-22

Did you freeze the paper after thermal transfer, or just soak in water.
Freezing for 20 mins. to 1/2 hour gives a denser transfer and easier paper removal.

Malcolm

I don't suffer from insanity I enjoy it!
Mene, mene, tekel, upharsin
The writing is on the wall.
Ha-ktovet al ha-kir

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On Sun, 9/22/13, rolynd33 <roland.rasch@...> wrote:

Subject: [Homebrew_PCBs] Some etched Artwork finished and questions on electrolytic etching
To: Homebrew_PCBs@yahoogroups.com
Date: Sunday, September 22, 2013, 11:18 AM
















 









I recently finished some etched Pendants.

You can see sone photos here:

http://brassgoggles.co.uk/forum/index.php/topic,41175.0.html



I used the toner Transfer method and ferric chloride with
good results . The etch is fairly deep compared to the usual
etch depth needed for PCB but detail is still very good.



I alternatively tried the electrolytic etch method with not
so much sucess. I use canon Toner and it seems it does not
hold up to a copper sulfate electrolyte. Its fine in
chlorides though but the saltwater etch presented its own
problems, a white precipitate forms on the etched piece
eating the toner. Another member suggested HP toner.

I want to try making the electrolytic etch to work, before I
get myself a new/used HP printer I wanted to ask here if
someone can confirm the usability of HP toner or maybe has
experience with the electrolytic etch method and copper
sulfate?