Homebrew PCBs

--- In Homebrew_PCBs@yahoogroups.com, "javaguy11111" 
<javaguy11111@y...> wrote:
> I am wondering if there may be some way to use mirrors to view both
> sides of a circuit board at the same time as an aid to aligning
> circuit traces. 


The best way I know of is to do alignment holes in your patterns 
that match on both top and bottom then match these holes in the 
board then pin thru both pattern and the board to hold them 
together.  

Now if you are doing Toner Transfer not sure how that will work with 
it pined together with whatever heating method you use, as I do 
postive exposure with Transparencies. 


Ben