Homebrew PCBs

On Thu, 08 Jan 2004 23:00:54 -0000, dkesterline <desterline@...> wrote:

> Which do you guys do first, etch or drill?
>
> I was thinking that drilling first would help me line up the toner 
> transfer, but I'm not sure about etching a drilled board.
>
> Do you get excesive undercutting at the edge of the drilled hole?
>
> -Denny
>
>

Never drilled before etching.

i use the etched holes as a drilling guide (to find the center).

but i rarely make 2-sided pcbs (no tt yet at all).

i don't tink the undercut is very much.

ST