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Thread: Post Rad Chiller Concept

  1. #51
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    Oh boy, im impressed so far

    I see loads of threads with cool ideas but this is one of the first where people follow through

    I am eagerly awaiting more pictures and some results
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  2. #52
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    Whew, channel cutting under way now...

    My commercial slotting saw arbor just wasn't going to work, so I had to machine a new one out for 7/8 brass bar I had handy. I should have done this a LONG time ago, sooo much more solid now and runout on the sawblade is almost non-existent.

    I'm also my own worst enemy..

    I just wasn't happy with the layout on the 1/8" channels, I ended up going with a 1/16" slotting saw and tighter spacing so you more or less end up with 1/32" thickness fins and 1/16" channels. This should do much better thermally and flow good as well. Unfortunately this little change will make channel cutting take about 3x as long

    It also took some creative clamping and layout, but I figured out a way to make a full channel cut in one past. Milling head is swung forward and the workpiece actually passes in front of the milling column...Whatever works, this is a big workpiece!!

    Might be next weekend before the channel cuts are all done...

    Last edited by Martinm210; 01-20-2008 at 12:57 PM.

  3. #53
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    Quote Originally Posted by Martinm210 View Post
    Whew, channel cutting under way now...

    My commercial slotting saw arbor just wasn't going to work, so I had to machine a new one out for 7/8 brass bar I had handy. I should have done this a LONG time ago, sooo much more solid now and runout on the sawblade is almost non-existent.

    I'm also my own worst enemy..

    I just wasn't happy with the layout on the 1/8" channels, I ended up going with a 1/16" slotting saw and tighter spacing so you more or less end up with 1/32" thickness fins and 1/16" channels. This should do much better thermally and flow good as well. Unfortunately this little change will make channel cutting take about 3x as long

    It also took some creative clamping and layout, but I figured out a way to make a full channel cut in one past. Milling head is swung forward and the workpiece actually passes in front of the milling column...Whatever works, this is a big workpiece!!

    Might be next weekend before the channel cuts are all done...



    yes martin I agree that would work much better thermaly speaking! I am sorry you have more work that way but it is looking great!!!!!



  4. #54
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    looking very good martin
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  5. #55
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    Quote Originally Posted by NaeKuh View Post
    looking very good martin
    Cool, I was hoping the little channel thickness change would be alright. It should only be a good thing for pulling heat away.

    Here are a couple more, finally got one block cut.


    And here is a 40mm TEC for scale, it'll be a bit oversized for 40's, but ready to take on the bigger ones if you decide to later.



    Turning out pretty good I think. Ran out of coolant so I'm going to take a break and give the mill motor a rest. I'll do the same for the other block later..
    Last edited by Martinm210; 01-20-2008 at 05:05 PM.

  6. #56
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    Very very nice job. Congrats


    If you have a cooling question or concern feel free to contact me.

  7. #57
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    wow martin that is looking great!!! Keep up the great work!!!!!!



  8. #58
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    Just gets better and better. Mart i'm gonna PM you as love to know the price for such item

  9. #59
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    Thanks!

    It's turning out well even if it is taking longer than expected. Probably finish the second base and start working on the tops next weekend or this week if I can squeeze in a little evening time in after work.

  10. #60
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    Quote Originally Posted by Martinm210 View Post
    Thanks!

    It's turning out well even if it is taking longer than expected. Probably finish the second base and start working on the tops next weekend or this week if I can squeeze in a little evening time in after work.
    martin... remember im in no rush. My project is date is May on Freya. The name of my new machine... also the name of the girl on my avatar

    And yeah. its from Chobit, and freya is suposidely a super computer. :P
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    [12:37] skinnee: quit helping me procrastinate block reviews, you asshat. :p
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  11. #61
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    well that is a hot looking super computer LOL



  12. #62
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    Quote Originally Posted by NaeKuh View Post
    martin... remember im in no rush. My project is date is May on Freya. The name of my new machine... also the name of the girl on my avatar

    And yeah. its from Chobit, and freya is suposidely a super computer. :P
    Sounds good, I got half of the other block channels cut today, will carry on at my normal slow pace...

    Someday, I'm going to try and build a new system like all you pro case builders do. I'll have to look for some inspiration like that too, that's awesome!

  13. #63
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    Quote Originally Posted by Martinm210 View Post
    Sounds good, I got half of the other block channels cut today, will carry on at my normal slow pace...

    Someday, I'm going to try and build a new system like all you pro case builders do. I'll have to look for some inspiration like that too, that's awesome!
    Isn't that always the case, building great stuff for others and you system is growing spider webs on it

    Keep up the great work, there is always new idea's that expand our playground and you seem to be the engine that is driving a lot of the leading edge information and integration.
    Martin you are becomming a true innovator of the Extreme scene

    Bravo
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  14. #64
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    Quote Originally Posted by Martinm210 View Post
    Yeah, the block will be big enough to take on 3 x 62mm TECs, so it'll be flexible for later changes if needed
    Well here you go, some Extreme Chillin....

    543W 12v 62mm 30.5A Thermoelectric Cooler TEC Peltier
    Krazy to think about having THREE of these on this "Post Rad Chiller"........ Now that i want to see.

    543W - 12v - 62mm - 30.5A
    Imagine the lights dim as you fire up your system :-)_~


    Brand new 62mm TEC, superb quality, most powerful

    Details:
    This is brand spanking new and is potted (sealed with RTV silicone). I've detailed the specs. below to enable you to make your own independent and informed judgement;
    At 50°C it consumes 30.5 amps @ 17.8v giving a consumption of 542.9W (0.543Kw).
    At 25°C it consumes 30.5 amps @ 15.6v = 475.8w (0.476kw). It's pumping power or Qcmax is impressive @ 50°C being rated at a very respectable 282w, equally as impressive @ 25°C it's Qcmax is 257w.
    This TEC has 127 couples and a resistance of 0.31 ohm @ 50°C and 0.27 ohm @ 25°C. It's ΔT N2 @ 50°C is a very healthy 79°C and 68°C @ 25°C. And Finally it's voltage range is 0 - 15v @ 25°C and 0 - 17.8v @ 25°C, and it's leads are AWG 16 Teflon and approx. 6 inches (15cm) in length.

    [SIGPIC][/SIGPIC]

    HEAT

  15. #65
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    Quote Originally Posted by systemviper View Post
    Well here you go, some Extreme Chillin....
    Imagine the lights dim as you fire up your system :-)_~
    Nadeshiko: i7 990 12GB DDR3 eVGA Classified *In Testing... Jealous? *
    Miyuki: W3580 6GB DDR3 P6T-Dlx
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    Sammy: Dual Yonah Sossoman cheerleader. *Sammy-> Lind.*

    [12:37] skinnee: quit helping me procrastinate block reviews, you asshat. :p
    [12:38] Naekuh: i love watching u get the firing squad on XS
    Its my fault.. and no im not sorry about it either.

  16. #66
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    Hey I gotta pay for some new testing gear somehow, and I'm just as excited about this idea as well..

    I got the second base channels cut this evening after work, now I can finally move on to milling some (no cutting fluid needed) acetal....ahhh



    I also need to pick up some beads to bead blast the machining marks away, this seems to roughen the surface a touch for better heat transfer too.

    Slowly but surely...
    Last edited by Martinm210; 01-23-2008 at 09:16 PM.

  17. #67
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    Those fins look sorta short. How tall are they?
    It looks really nice though, I wish my waterblocks looked that neat (dremel + 15 used up discs ftw).
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  18. #68
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    Quote Originally Posted by serialk11r View Post
    Those fins look sorta short. How tall are they?
    It looks really nice though, I wish my waterblocks looked that neat (dremel + 15 used up discs ftw).
    They are .100" or a little less than 1/8". They are about as tall as many CPU block pins. I experimented around with taller pins on one block a while back and I didn't gain anything. In this case I wanted to make the base from 1/4" copper, which was already expensive enough, but I wanted to leave .150" for plenty of strength in compressing the pelts too. There is also that time thing...6 hours just to cut the channels per block..

    I think on taller pins you tend to get too much water shying away from scrubbing the base really well. This is already a fairly wide set of channels, so it'll be important to keep the hieght down low to maintain good velocities and turbulence. Sort of like the supreme microchannels, but on a bigger scale.

    I think they will be fine, they just looks small when they are on a 7" long x 3 1/2" wide block..
    Last edited by Martinm210; 01-23-2008 at 10:10 PM.

  19. #69
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    Beautiful machining Martin, wish i had the time/skill/tools to pull that off.

    I am interested to see how this turns out, nice to see someone actually follow through with a TEC build.


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  20. #70
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    Martin, I realize it's way out of your budget at the moment...but you really must start saving for a CNC machine! A smallish, well-built one will run about 3G's, but based on the amount of time you're spending on just this one project, you can no doubt make up the difference in time savings alone!
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  21. #71
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    wow those things are looking great!

  22. #72
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    Brute torque of the screws, silicone, O-ring, or a gasket to make the seal?

  23. #73
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    OMG Martin. im seriously in love with your work.

    Just watching you do this is and all the testing is well worth the cost.
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    [12:37] skinnee: quit helping me procrastinate block reviews, you asshat. :p
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    Its my fault.. and no im not sorry about it either.

  24. #74
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    Quote Originally Posted by NaeKuh View Post
    OMG Martin. im seriously in love with your work.

    Just watching you do this is and all the testing is well worth the cost.
    LOL better watch it martin he is getting excited.



  25. #75
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    I think you'll find that if you go with even larger cold plates, and taller fins youll get more performance. Not only that, watt for watt, more peltiers would be better. As you then get a larger heat dissipation surface area. Also watercooling the hots is fabulous and all, but air cooling would be sufficienct if the heat was further spread out.


    If you have a cooling question or concern feel free to contact me.

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