Did you drill by hand or CNC? If you are drilling by hand the distortion
isn't enough to notice. On, say a 40 pin DIL the error is small enough
to be mistaken for drilling errors. If you are drilling with CNC the
distortion becomes a problem. If the holes line up perfectly one end of
the board they may miss the pads entirely the other end of the board.
Les
Ben wrote:
> I have used Staples Basic Photo paper and I did not encounter any
> problems of shrinkage/expanding. I did get some wavy lines, so now I
> only use straight down pressure. The only real problem with Staples
> paper is removing it from PCB, needs to soak and peeling off those
> layers is tricky. I would take me 30-45 minutes. The Hammermill
> Office One Business Gloss is much easier to remove( 1 -2 minutes).
> Izzo
>