Hi, Ken.
Good idea. How about going one step further - print an annulus centered on each hole, do a TT to the board, remove the paper and drill through the centers of the annuli? No need for thin paper, and you can use acetone to strip the hole pattern before transferring the traces to the board.
Just a guided-randomness thought.
Donald.
----- "sailingto" <
sailingtoo@...> wrote:
> > sense. How will you know where to drill the holes without a CNC? Or
> do you
> > plan to get one? Perhaps I am missing something.
>
> Well, not sure if drilling first will work or not, my idea was to
> print drill pattern on thin paper so holes 'n vias could be seen from
> back side, put TT paper on one side of PCB, run thru laminator once to
> stick paper in place. That would cause the drill pattern of all holes
> to be visible, then drill thru this thin paper.
>
> With all the holes drilled, I was hoping lining up both sides of TT
> paper to the existing drilled holes would improve hole registration.
> Currently my double sided boards have most of the traces on one side,
> with only a few on the other side. This keeps the holes to a minimum.
>
>
> As I write this, I'm not sure it will work - maybe I'll get to try
> later this week.
>
> Ken H>
>