On Jul 15, 2009, at 2:44 PM, solarwind wrote:

> I've tried this a few times and it's not working. I printed my PCB
> design onto photo glossy laser paper (will try magazine paper next)
> and then I iron it onto the copper board. Some parts stick, but some
> parts don't stick at all.
>
> Any tips?
>
> -- [ solarwind ] -- http://solar-blogg.blogspot.com/

Scrub the board carefully with a green scotchbrite pad to remove  
surface oxidation and dirt.

Wash very carefully with soap and dry.

Scrub the board clean with acetone to remove any oils. It should now  
be bright, shiny, blemish free copper.

I used the Staples inkjet photo paper, and a hot iron. Press hard and  
let the heat really soak in to the toner and board.


That setup worked for me, and the toner was _really_ stuck to the  
copper. I used a toothbrush to get the last of the paper off of the  
copper before etching...no issues with the toner coming up.

I think having the fresh super clean copper along with the heat are  
the keys. I found that one of our two irons was 30C hotter than the  
other one...yours may not be hot enough.

You may also want to try a different printer with a different brand of  
toner...

-Pete
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