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Water Block Design / Construction Building your own block? Need info on designing one? Heres where to do it |
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08-27-2002, 06:01 AM | #1 |
Cooling Savant
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Lookie what I just got
it's a 1U rackmount p4 heatsink, see if you can guess what I'm going to do with it
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08-27-2002, 08:26 PM | #2 |
Cooling Savant
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OK, I'll be the first to guess
You are going to encase it with a copper cover soldered in place (if the screws shown in the picture are the mount hole positions then them are some large barbs). |
08-27-2002, 09:29 PM | #3 | |
Cooling Savant
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Quote:
Other than the fin area being a little too large (for water cooling), I can't see any reason why it won't perform exceptionally well.
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08-28-2002, 02:30 AM | #4 |
Cooling Savant
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Is that a skived copper heatsink?
If so, I was looking for a HS exactly like that one!! Where'd you get it? Or list a name so I can Google |
08-28-2002, 03:01 AM | #5 | |
Cooling Savant
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Quote:
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08-28-2002, 11:26 AM | #6 |
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either that is a lot of dence fins or its the base... waht is it?
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08-28-2002, 09:25 PM | #7 | |
Cooling Savant
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Quote:
the blurry ruler in the foreground is metric
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08-30-2002, 01:48 PM | #8 |
Been /.'d... have you?
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With high pressure, I think you may have a good idea ... keep us in tune.
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08-30-2002, 02:40 PM | #9 |
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This isn't a skived fin HS, but it's very nice! What's your watercooling conversion plan?
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08-30-2002, 03:18 PM | #10 |
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first your gonna cut out the area below the barbs so it can go to all fins rite? ten your gonna make it copper rite? the rest of it? i hope so. this thing will be mad cool!
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08-30-2002, 07:51 PM | #11 | |
Cooling Savant
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Quote:
oh yea I'm working on it this weekend (going to get some bits for it very soon in fact) I'll post update shots as I go, though for the moment I may only go with 3/4'' barbs sinse I still havn't got my 1'' plan sorted out yet, 3/4'' will be a lot easier to temporally set up.
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feel free to icq/msn me, I'm always willing to toss around ideas. Last edited by Volenti; 08-30-2002 at 08:11 PM. |
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08-30-2002, 09:04 PM | #12 |
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It won't be easy to get enough water between those fins.
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08-30-2002, 09:22 PM | #13 |
CNC Beyatch
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I have a heatsink almost just like that.... well not anywhere near like that now that I look at it. Its a xeon heat sink. Would make a cool water block, except that its copper and aluminum. Bigger then any heatsink I have ever seen.
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08-30-2002, 11:59 PM | #14 |
Cooling Savant
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One place to find a 1U copper sink
www.rackmountpro.com carries these, but they're $20/each and the shipping prices are horrendous.
They also carry one for an Athlon, which seems to work pretty well (for a 1U HSF on a Duron 1300...) And not to contradict bigben2k, but it looks like it is skived, I know the Athlon ones we've got are, and the pic above certainly looks very similar. |
08-31-2002, 01:10 AM | #15 |
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Ok I've done my shopping and have a length of 3/4'' hard drawn copper pipe (that I'll flare and use as hosebarbs) it has an internal area of 227mm/2, after attacking the heatsink with a ruler and some educated guesswork on the thickness of the fins I've come up with a "channel" area of 432mm/2.
That's actually ideal for the 1'' I was originally planning, but I don't think I'll have room for the geometry needed to get that flow too all the fins properly, so 3/4'' it is. However since I don't want to have the water flow slowing down in the block (re; water block theory) I'll direct the water flow through only the centre of the block, through a roughly equivilant fin area. like so; this also has the benifit of greatly simplifing the construction, something I won't be complaining about
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08-31-2002, 02:09 AM | #16 |
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and here's the results after trimming the "un-needed" fins off
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08-31-2002, 09:30 AM | #17 |
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just curious, how did you trim off those extra fins? it looks very even, like you took a mill or something to it..
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08-31-2002, 11:37 AM | #18 |
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I may not have the right understanding of "skived", but anyways...
You're on the right track. The challenge is going to force the flow between the fins, and that's going to mean keeping the lid right on top of the fins, or at least very close. At this point, you've probably already thought about some kind of manifold, to allow the water in and out. In one side, through the fins, and out the other. Right? Right... |
08-31-2002, 07:26 PM | #19 | ||
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Quote:
Quote:
anyway I've been a bit generous with the flow passage to try and compensate for any friction or weird boundary layer based flow restriction, I should have it finished today so we'll find out
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09-01-2002, 12:50 AM | #20 |
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how many fins does that thing have? like 100 on each side?
that should be an ultra cool block, lets just hope you can seal it all ok
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09-01-2002, 01:51 AM | #21 | |
Cooling Savant
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Quote:
everyone loves pictures, picky time parts layed out ready for assembly;
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09-01-2002, 01:51 AM | #22 |
Cooling Savant
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The reason I asked about this is because I had basically the same idea - I asked about a HS like this in the HS area, but no one knew of one It was either this or another solid block design I came up with.
I figured I'd have the barbs enter into a chamber that would feed into the fins. I'd put a knife edge on the ends of the fins to lessen restriction. In my opinion, the pic with the fins on the sides cut off should work good for a block sitting on the CPU. I think you could use more/all of the fins if you were going to go with a Pelt setup. |
09-01-2002, 01:52 AM | #23 |
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block assembled and tied together with wire;
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09-01-2002, 01:53 AM | #24 |
Cooling Savant
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block after soldering, leak free first go
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09-01-2002, 01:57 AM | #25 |
Cooling Savant
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good vertical shot down the tubes showing the fins and spreading chamber inside.
A quick flow test with my 2800L/H pump through 1m of 3/4'' hose produced 1600L/H
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