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.