Homebrew PCBs

James,

This is what I bought:

http://www.ebay.com/itm/A4-10Pcs-Sheets-Heat-Toner-Transfer-Paper-For-DIY-PC
B-Electronic-Prototype-Mak-/170900415631

Rick

-----Original Message-----
From: Homebrew_PCBs@yahoogroups.com [mailto:Homebrew_PCBs@yahoogroups.com]
On Behalf Of James Newton
Sent: Friday, August 09, 2013 11:11 AM
To: Homebrew_PCBs@yahoogroups.com
Subject: [Homebrew_PCBs] Re: Easy Fast Laser Print DIY Circuit Boards -
Dave's toner-transfer freezing technique

Rick, can you share the source, part number and mfgr, or any other details
about the "special waxed paper"?

--- In Homebrew_PCBs@yahoogroups.com, "Rick Sparber" <rgsparber@...> wrote:
>
> The special waxed paper came in WAY ahead of the promise date - got it
today. Wonderful material! I drafted a 1" long scale with 10 major and 30
minor divisions on it using DesignCAD V14. It was then printed, mirror
image, onto the wax paper. I printed 4 coupons at a time. Two of these
coupons were taped to 2 small pieces of copper plate.
> 
>  
> 
> I ran my copper plates with the waxed paper on top through my laminator 10
times. Then I put the samples in the freezer for 15, not 30 minutes. The
paper fell away from the toner. Then I dropped the two samples in rather
used up ferric chloride that I put out in the Arizona sun. Every 15 minutes
I would bump the container. After an hour I pulled out the samples. The
toner was solid and I had etched down about 0.001" according to my caliper.
The fine lines of the scale and numbers all looked perfect.
> 
>  
> 
> My last small challenge is figuring out how to color the background and
leave the raised copper areas shiny. I tried coating the entire surface and
then abrading the raised area. Didn't do a very good job but the technique
shows promise.
> 
>  
> 



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