my latest blocks are quit good, here's a pic from my GPU block
3mm holes, the holes connected by two dremel cuts giving a performance boost
building atm a CPU block:
pic with a broken drill bit:
for my next block, I want to use 2mm drill bits. I once tried that, but it broke off when I cut too deep. I'll be patient and use some quality drill bits as I know smaller holes will give me once again a nice performance boost, don't they?
in the local store they have these bits:
-cobalt
-HSS
-cobalt/HSS
what drill bit works best?
my holes will be about 4mm deep and I cut with a relatively slow drill
another question: how deep should my holes be?
I think they shouldn't be too deep, 3-4mmm: I think if the holes are quite deep and there a lot of holes, there will be stagnant water at the bottom of those holes.
if my holes are not very deep, will the water flow faster through the block?
after all a #rotor block has a great dissipation area, so there's a rather slow water flow in the block, perhaps causing stagnant water?
EDIT: check attechmints in my later posts