Homebrew PCBs

> 3.  Reverse (L-R) Cu trace artwork image.  Print reversed
>
> image onto transfer paper, using black toner.

Note that usually you "see through" the PCB in a layout software, that  
means you would not mirror any transfer to the bottom and mirror all  
transfers for the top. Check twice for your first board!

>
>
> 4.  Reverse (L-R) component legend layer image.   Have
>
> printer print it onto transfer paper using white toner on
>
> a color laser printer.
>
>
> 5.  Press black toner onto Cu board using iron.   Let dry.

Make sure you transfer the traces onto the copper and the legend onto the  
bare side. Don't ask.

5.5 Soak and peel/rub off paper.

> 6.  Inspect black toner for breaks; correct as necessary
>
> w/ Sharpie pen.
>
>
> 7.  Etch Cu from board.
>
>
> 8.  Strip toner from board using acetone & toothbrush.

or scrape it of with something with a hard edge, a steel scraper or  
another PCB.


ST