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Originally Posted by nicozeg
There's a lot of theory about the best place to watercool a Hard drive, but no real data. While I was in the process of making an HD block, I discovered that a friend had an IR thermometer buried in a tool box, and I asked for it. 
This is a must have toy for chasing hot spots! 
(Metal surfaces don't work, need to be painted or covered with tape.)
I wrote an article about this in my friend's page, You can read it here
If don't understand the languaje, just see the pics, are self explanatory.  |
Nice work Nico!
This demonstrates what I've been talking about.
The backside cover doesn't touch the spindle motor (air gap), and that's where the heat comes from, so cooling the cover isn't going to do much. It's pretty obvious from the pics that water cooling the spindle motor directly is going to be pretty inconvenient, hence my decision to just cool the sides, and stick a few miniature heatsinks to cool any hot electronics, with the help of a small fan.
BTW, I picked up this neat tapping tool yesterday: it's a screwdriver, capable of tapping three size holes: 6-32, 8-32 and 10-32. Check out "Klein tools" for more details.