Homebrew PCBs

I am trying to line up press and peel. I have done one two sided board
just lining up and taping. That worked, but I am going to be doing
much smaller holes and I think I am going to have problems maintaining
alignment so I was trying to think of other ways to make sure things
line up.



--- In Homebrew_PCBs@yahoogroups.com, "Ben H. Lanmon" <bhleavi@y...>
wrote:
> --- 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