wywywywy: the holes are drilled with drill press, and the channels between them are made with dremel with cutting discs.
Think that drilling the holes with hand drill or dremel is near to impossible, no accuracy in position, depth nor angle of the bit...
Dremelling took another 30 mins or little more...
For NB block it took me approx 30 mins to drill. The beauty of the #Rotors design is that one can finish the block in no time, and still have great looker and really good performer...
And for the CPU block, I managed to drill three lines of holes, with three drill bits (snapped them all
), and than started dremelling all of them. Dunno how much time it took me to dig em up, few hours with pausing for bitching:shrug: