Homebrew PCBs

DJ Delorie wrote:
> Thanks for the tutorial!  I noticed your board is pre-drilled... do
> you always drill first?  Any tips there?  I usually used the etched
> dimple as a drill guide.
> 

thanks.  As Markus said, for PTH PCBs the holes must be pre-drilled. I 
was always too scared to etch dimples and rely on the carbide drill bit 
wondering into the centre and breaking off. I print a drill guide sheet 
printed on glossy photo inkjet paper and tape it to the PCB material. 
The guide also identifies each hole size too.