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is that right? 0.15" tall??? isn't that too small if i get it correctly your base is like 1/4" thick at least or more....
am i wrong?
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That is correct. I'm running a Nemesis II (still a prototype) right now, and getting temps of 31idle/36 load. The nemesis II base is 2"x3"x 0.25" thick overall, with 15 channels 0.15" deep and 0.031" wide, leaving a 0.10" baseplate thickness. What you see pictured is a prototype block made from 5/8" thick copper barstock. it's still using 1/32" channels, but they are cut to 0.25" deep, and the base will be shaved down incrementally to find the optimal BP thickness.
1) How does the in-flow and out-flow work w/ such a wide finned area?
there's just a channel cut across the top to spread the flow to the outer channels.
See Here The evo uses the same base, but has a nozzle to focus the jet of water.
2) Did you use a slitting saw? If so the "corners" of your channels mush be curved instead of square corners. More info on that please.
Yes, these are cut with a slitting saw, and the edges slope upwards. As many have found, the ends of the fins are not doing much, if anything, to cool down the chip. all the interesting stuff is happening in the middle.
HOPEFULLY .375" tall. Do you think I'll be able to cut that deep w/out the fins bending on me too much?
If you want to keep the channels straight, I would recommend no more than 0.125" per pass with a 1/32" slitting saw. If you try cutting much deeper than that, the tool starts to bend. You should take it in 3 cuts, 0.125" each.
Nice purple die also.
Thanks, it's Dykem blue layout fluid. It gives very good contrast with copper and aluminum.
Hope this helps clear some things up.