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

2013-09-22 by Malcolm Parker-Lisberg

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@gmx.de> 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?

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