Homebrew PCBs

It is not a wild idea, Actually, this process is used
on granite headstones. There is a resist photofilm
where the desgn is exposed and processed that is then
adhered to the granite before mechanical etching.. 

Very similar to the photo etch process. The film is
water based, so may not work in an etchant. 

I'm sure if you google, you will find a lot. I can dig
out the name of the comapny that I got samples from a
couple of years ago. I thought the film might make a
good solder mask.

Do you have a spare sandblaster?

TANSTAAFL!

Myc



--- javaguy11111 <javaguy11111@...> wrote:

> Just to throw a thought out that I have not seen
> mentioned on the
> list. I am wondering if it would be possible to use
> some kind of
> sandblasting technique to etch circuit boards.
>  
> Some issues  that come to mind for me are how good a
> resolution can be
> achieved, what kind of resist could you use that
> would last long
> enough to remove the copper and what kind of
> abrasive could you use.
> 
> Anyone have any experience with frosting glass using
> sandblasting
> techniques?
> 
> Again just throwing a wild idea out there to see
> what others may think.
> 
> 
> 
> 


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