Homebrew PCBs

Dan,
I knew from Voltan's work that he was able to print a solder mask. (I was
never able to correctly cure the ink) and decided to try the Toner Dusting
process instead.

I was looking at replacing the black toner with other fusible fine powder,
hopefully a white or yellow one, to use as component legends. I  had seen
some electrostatic painting on a TV show and thought it might work, though
most of the time the metal items were baked at a very high temp. I did a
search and found that the ES paint was also used on MDF, so a lower temp
fuse was possible. There are a few different types of ES powder.

I found some ES powder paint at SEARS for only $6 and am trying it. I am
told it also is available at some auto parts stores. The SEARS version has
slightly larger particle sizes.

I've just started playing with it. It seems to give a very thick coating.
Try to avoid the gold fleck version, The goldish particles are very small
and are hard to remove.

Toner dusting  is a very simple process and easy to try.  Like toner
transfer you have to fine tune it to your set up.

Myc




On Tue, Oct 14, 2008 at 4:15 AM, dandumit <dandumit@...> wrote:

>   I like this improvement to process.
> Personally I have modified an epson D68 to print on pcb and I have
> made some tests. Unfortunately I have never baked the ink correctly.
> More than that , using this trick , it can be used cheap dye ink too.
>
> Could you please explain more about solder mask ? Do you plan to use
> electrostatic paint as solder mask ?
> Regards,
> Daniel
>
>  
>


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