Homebrew PCBs

WOOT!... the 3 images didn't attached succesfully... 
  I've uploaded the 3 images, pls see
   
  Photo Section - ISOLATED ETCHING - TIPS & TRICKS
   
   - PHOTO SECTION LINK - 
   
   
  

"pinoy_nyc@..." <pinoy_nyc@...> wrote:
  Here's the procedure using Photoshop
  1.) Load the board image
2.) select magic wand - make sure anti-alias & contigous is disabled.
3.) click/select the black color (non copper area)
    this will select all the black color since contigous option is disabled.
4.) contract the selection/marque to 5 pixels. 
    From Menu: Select->Modify->Contract, then choose 5.
5.) Hit del key, to delete the selection/marque.
6.) Now etch the PCB with your favorite solution.
  

   
   
  STEP 1.) *** THE ORIGINAL BOARD FROM EAGLE ****
  

   
  STEP 4.) **** LOADED INTO PHOTOSHOP, MARQUE SELECTED AND CONTRACTED TO 5 PIXELS ***
  
   
   
  STEP 5.) *** DONE!!!! *** ISOLATED TRACES READY TO BE ETCH ***
   
    

   
   
   
   
  
Mike Young <mikewhy@...> wrote:
  Excellent! Post process the image. :) I'll give the magic wand a swing or 
two this evening, too.

8 pixels is probably just right for 600 dpi, a touch more than 13 mil. I 
might go a bit more generous on the bus side.

----- Original Message ----- 
From: <pinoy_nyc@...>
To: <Homebrew_PCBs@yahoogroups.com>
Sent: Monday, November 21, 2005 8:56 AM
Subject: Re: [Homebrew_PCBs] Mechanically Etch Style


> Hi Mike,
>
>  Oh I see, it's isolation etching. Thanks.
>
>  I just tried experimenting with photoshop and able to produce it 
> Isolation etching in
>  about 30 seconds from the original eagle board image.
>  what I did is select all the non copper area (black color) and contract 
> the selection
>  into 8 pixels. by doing Select->Modify->Contract and the flooding the 
> selection with
>  white.  It looks ok though...



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