Homebrew PCBs

David Griffith <dgriffi@...> writes:

> One of the things that is driving me to the photo process is that
> I'd like to do double-sided boards sometime.  It seems a bit easier
> to get the two layers registered properly by taping two stencils
> together to make a pouch.

I have a special footprint in my library that, when printed on
transparency, results in a fine-line crosshair in the same spot on all
layers.  I print one layer on plain paper and use it to drill out
those spots on the pcb with 13 mil holes, then I have an easy visual
target to use to align each film to each side of the pcb.