Good TeC Wc block design?

[max_Jaker]

ok after some consideration ive come up with a block design to use with a tec

if im way off base with this design let me know please any comments are welcome be they constructive thanks :)

this is drilled copper block style the areas in the middle will have to be ground out with a dremel since u cant get a drill there
the whole thing will be sealed by plates around the outside.

Jake.


http://img.photobucket.com/albums/v458/max_Sleeper/wbd2.jpg

http://img.photobucket.com/albums/v458/max_Sleeper/wbd2g.jpg

[Holst]

Looks pretty good to me.

You might want to go with a central barb with dual outlets.
The higher the flow the better with TEC.

Looks easy enough to make if you have a decent drill press (drilling copper is annoying)

one very important thing you need to work out is coldplate mounting.
Ideally you want 6 bolts (M4 thread) to get a high clamping pressure on the TEC. Using only 4 bolts you will bend the block and coldplate.
Get the bolts absolutely as close to the TEC edge as you can.

[n00b 0f l337]

Honestly holst, I have to disagree. There is not enough surface area to pull heat from the tec to cool with water. Pin blocks, oddballs, and impingement are the best for tec's. Straight channels back and forth isnt good enough.

[Holst]

It will work ok with a high enough flowrate.

A pin design (like a 6002) would be better, but this is much easyer to make.

Im not sure how an inpingement TEC block would work ... ive never seen one built?

This sort of drilled block isnt the ultimate design, but they do work ok. More suited to TEC than CPU.

[Mr. Tinker]

I doubt impingement will work on TEC since the point is to focus the cooling on a small (1.5cm sq) area, while TEC needs evenly spread out cooling Action Jackson.

[Holst]

I doubt impingement will work on TEC since the point is to focus the cooling on a small (1.5cm sq) area, while TEC needs evenly spread out cooling Action Jackson.

Exactly..

THe way I understand it you need a certain water velocity to get the inpingement to work.
You would need an insane pump to manage this over a 50mm x 50mm area.

You could make a block with centeral inpingement with a pin array outside, this would be effective but hard to design and harder to manufacture.

[Mr. Tinker]

Like a G5 at 3-4 times the scale, with a small channel going to each of the jets. I guess that's not SUCH a bad idea, just insanely hard to make. Aw crap, now I'm a-thinkin' agin.

[max_Jaker]

[QUOTE=Holst]Looks pretty good to me.

You might want to go with a central barb with dual outlets.
The higher the flow the better with TEC.

Looks easy enough to make if you have a decent drill press (drilling copper is annoying)

[QUOTE]

yeah i thought of the central barb as well
that would greatly reduce the internal backpressure of the block good call if you ask me

i do have access to a drill press . any tips before i skrew up some expencive copper stock?

thanks again for all who have replied i would love to see an impengement design
it does sound nice but how would it be done effectively on this scale?

my pelt is 50 mm btw ebay special thermal enterprises seems to work well but i wonder how overrated the wattage numbers are..says 130-170 watts cooling power heh who knows how they came up with the numbers.

[n00b 0f l337]

There wattage numbers are pretty close. Drill press is going to be quite hard to do. You may want to get some other form of metal, maybe aluminum, to test drill. Remember, copper also gets gummy when it gets hot and drilled.

[max_Jaker]

is there any special way of drilling it some special bit oil or anything or just take my time and dont overheat stuff?

is this pelt powerfull enough for my cpu? sorry for so many questions im just wanting to not dissapoint myself

[Mr. Tinker]

If it's the "320W" from Thermal Enterprises, it's powerful enough. Just got mine up and running last night and like what I see.

[max_Jaker]

mines the 130-170 i was so tempted to get the 320 :( but im afraid of the power supply i would need im running a little low on cash but wasnt when i started this project

ive had one monitor die
my gforce4 mx 440 se died the other day ;/
so a few unexpected expences lately so i guessim glad i didnt get the big one but it really wasnt much more money its a tough call :(

not to mention i just got back from the dentist..
;/ sheesh these teeth better last me forever now lol

[n00b 0f l337]

Sempron... You may be okay, worth a shot.

[Mr. Tinker]

It's been a while since TEC waterblocks have seen any innovation. Sure, there was Wintsch Labs, but those were just bigger. I wonder what Cathar would have to say about this...

[Overconfidence]

I'm willing to work on CADs of waterblocks if anyone has good ideas (Like NOL :P).

About the drilling... You'd have to experiment with different cutting fluids. Some help and some jam up your cuts (Like when I was cutting little 1/16th channels in my waterblock).

[Holst]

I used white cuttinf fluid (and lots of it) pour it on all the time if you can manage it.

You get allot of sticky awquard swarf with copper, so drill a little then come out to remove the swarf.

Lower RPM worked better for me drilling copper, but ive never drilled as far into a block as you want too.

Like the other guys say experiment. Major problem with copper is the drill getting bound up with the swarf and breaking off in the block. The bigger your drill the easyer this will be, i have a real pain drilling 1.5mm holes in copper .. not recomended at all unless you have a good drill press. My cheap one isnt much use as its not stable at all.

[max_Jaker]

im thinking thick plexi for the top of the block to hold the coldplate onwith mabye some double sided tape under it to squash evenly on the corners.

[Bloody_Sorcerer]

an impingement design would be fantastic, assuming you could get the jets/holes spaced evenly over 40x40/50x50mm...
USE LOTSA LUBE! and go slooooow.
plexi tops are prone to cracking.

[n00b 0f l337]

Impingement wont be nice over this size area. Possible, but not so great at 1/2" or 3/8" flow.

[Bloody_Sorcerer]

yes, indeed, unless you used stupidly large cups/jets which would simply destroy the impingement effect...

[Semicycle]

I've been looking at TEC waterblocks over the last couple weeks and I bumped into a HD waterblock that may do the trick for a project I'm planning. I'm trying NOT to reinvent the wheel and if these work good (buying 2-4), I'll be very happy.

They are VERY cheap at the moment too (newegg, directron and tigerdirect all list the block $25-$29)

What do you guys think?

CoolerMaster AquaTurtle HDD Water Block
http://www.tigerdirect.com/applications/SearchTools/item-details.asp?EdpNo=1445465&CatId=499

[n00b 0f l337]

Not enough surface area.

[max_Jaker]

hrmm that hard drive cooler looks like it might work ok for a hard drive though :)
mine always seem to get pretty warm but im afraid that cooling the hd will be in vain as most of its heat is radiated from the inside to the outer cover correct?

i used to strap stock amd heatsinks to my hd's with a small fan on 5 volts but this seemed to have little effect :/

so far no progress with the block i cant seem to find a good chunk of copper locally it looks like i will have to take a trip to the city (around 80 miles) to get the copper ;/

[ilkkahy]

To be accurate that block cannot be made with any drill if drawings should be used precisely as they are. Check out those two short channels and think how they are to be drilled and youll get my point..

I would make some sort of lamel or pin -type waterblock for peltier use. But it depends what kind of tools there are possible to use. I dont think drilled blocks are actually that super-easy to make compared to other possibilities.

[Holst]

To be accurate that block cannot be made with any drill if drawings should be used precisely as they are. Check out those two short channels and think how they are to be drilled and youll get my point..

I would make some sort of lamel or pin -type waterblock for peltier use. But it depends what kind of tools there are possible to use. I dont think drilled blocks are actually that super-easy to make compared to other possibilities.

The side channels will be dremeled out, then the open end sealed with a copper plate on the blocks outside.
Not an ideal solutiuon, but easy enough to do.

[cirthix]

buy a copper heatsink and braze sides to it. then use a 1/4" plexiglass top that isnt direclty attached to the waterblock to have all the mounting stuff on.