Homebrew PCBs

Interesting! I would have thought the oily residue would interfere with the
process. I've never had any luck myself using an iron to do the transfer,
but I picked up a HF laminator recently and been meaning to give it another
shot.



On Mon, May 23, 2011 at 1:07 PM, James Newton
<jamesmichaelnewton@...>wrote:

>
>
>
> --- In Homebrew_PCBs@yahoogroups.com, "Fast Eddie" <epinnell@...> wrote:
> >
> > The process I am using is a little involved but I'm getting great
> results. Following someone else's recommendation this list, I use a product
> called CitraSolv as a primer. CitraSolv is an organic cleaner made from
> citrus (d-Limonene) that dissolves the toner just like acetone does. I use a
> piece of 600 grit wet-or-dry sandpaper and wet sand a the copper a little
> bit to brighten up the copper layer and remove any surface imperfections,
> then dry the board with a microfiber cloth and then smear a thin layer of
> CitraSolv on it. It will evaporate within a few minutes leaving a dry but
> very slightly oily surface. I print out the traces on magazine paper (which
> will tend to transfer the ink from the page) or glossy inkjet photo paper
> and tape it to the copper clad board with the blue delicate surface
> painter's tape and run it through a laminator a couple of times to stick it
> down to the board. I then pop the board directly into a toaster oven *with
> the paper still on it) at about 375F for 2 or 3 minutes to melt the toner
> and heat the board all over, then pass it through the laminator a couple
> more times before it has time to cool. I then put it in a sink of cold water
> with a little dishwashing detergent to soak the paper off the board. I get
> great results! The transfer is very nearly 100% from the paper to the board
> and the toner adheres very, very well...you can't scrape it off with your
> fingernail.
> >
>
> Nice write up! Thanks for sharing that...
>
>  
>


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