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CNC-machining of Commell LS-373 Heatsink...please help

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  • CNC-machining of Commell LS-373 Heatsink...please help

    Hello Guys,
    I'm Melbourne (Australia) based, and am designing a small 3.5" Embedded Computer project.

    I need to have a total silent, passive-cooled device, and have designed a small heatsink-interface piece, made out of 50mm(w) x 88mm(L)x25mm(h) aluminium.

    This will connect the CPU and Northbridge on my Commell LS-373 motherboard to the "roof" of my extruded aluminium case, the donor which was an AAEON-6820 Industrial Computer.

    Please find attached a screenshot, and if anyone is willing to make this, I have ready an AutoCAD design to specs.

    Any idea on pricing on CNC-machining this "heatsink" will be appreciated.

    Much obliged - pricing from the USA is fine, please indicate idea on shipping to 3109, Victoria, Australia too.

    This is a low-volume, private endeavour, to be implemented in Carputer use - so bear that in mind when pricing

    Thank you in advance.
    Phillip aka mrbean
    Attached Files
    F6 Tornado Project Log ; HP Blackbird Watercooled Server

    Beta Tester for Centrafuse and 3dConnexion (No business affiliation with either)

  • #2
    I might be able to help you out! I'm a bit far from you (Northwest United States), but am a machinist, and have a small CNC shop at my disposal. We routinely ship packages and crates "down under", so I should be able to get a decent rate on shipping, as well.

    I've PM'ed you with my contact info.

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    • #3
      Freedom,

      What are your prices like on average? Do you have a website? I get my stuff CNC'd in Australia and I'd like to move that a bit closer!
      Also, are you capable of anodizing aluminum?

      Give me a shout
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      • #4
        Hi, Colin!

        I don't have a website, and the shop is not my own. I work for a small company, and our shop serves our own manufacturing needs. But, since I only work 4 days a week for the company, I've worked out a deal with the owner to purchase time on the machines for side work (anything that doesn't compete with the company product line).

        I can find a local shop for coatings, so that's not a problem. I'm in/near a large aerospace manufacturer (think passenger jets), so secondary processes and shops that do them are plentiful.

        I quote jobs on an individual basis. Shop rate is fixed, material cost is variable, and my time is somewhat negotiable. I enjoy what I do, but I'm not looking to get rich off of it! Besides, my boss pays well...

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        • #5
          mrbean_phillip be carefull what you are doing with my ex-motherboard

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          • #6
            Lol at Dejan You will like what I'm doing to it, hehe - will show you some pics when I'm done. Tell you, it is a little screamer with Intel X25 G2 SSD, and Penryn 2.13gig!

            @ Freedom First: Thanx Mate, will reply to you tonight - gotta run off to an Interwise Meeting quick, be back in an hour.....
            F6 Tornado Project Log ; HP Blackbird Watercooled Server

            Beta Tester for Centrafuse and 3dConnexion (No business affiliation with either)

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            • #7
              A small progress update -> from post 1 above, to the reality - a big thank you to Brian Casten (member Freedom_First) for doing a beautiful job on machining a few blocks for me - they came out better than I ever hoped - the next 6 photos are ones Brian sent via email, the rest is my own.











              and the side that will go against the roof/ceiling of the heatsink case:

              F6 Tornado Project Log ; HP Blackbird Watercooled Server

              Beta Tester for Centrafuse and 3dConnexion (No business affiliation with either)

              Comment


              • #8
                And herewith a few progress-shots, fitting the block to the motherboard - note a few of these are test-fit pics only, the end-result would have the block sandwiched between the motherboard and the case.

                This basically means that, althoug in some pictures the block is bolt directly to the motherboard, in reality there are holes drilled and tapped, in the roof of the case, and the screws from the cpu (x4) and Northbridge (x2) will pass through the block, and blot into the case.

                This will give a decent clamping-force, so that heat is properly transferred from cpu/nb to the heatsink-case. Also, this will avoid stressing the board, by overly tightening the 4 mounting-holes on the periphery of the motherboard, just to get a decent pressure.....

                The case uses was sourced of Ebay, and genrally comes with Aeeon systems, containing anything from 750mhz to 1gig Via 3.5" SBC Industrial Computers.









                F6 Tornado Project Log ; HP Blackbird Watercooled Server

                Beta Tester for Centrafuse and 3dConnexion (No business affiliation with either)

                Comment


                • #9
                  And a few showing how it mounts to the board, and then finally, assembled and bolted to the case.....









                  In the next 3 shots, I have used properly sized allen-cap bolts to secure the motnerboard to the
                  roof of the case, ie the bolts pass through the interface-block, and sandwiches it proper. Works
                  very well, and temps settle at around high 40's for the cpu, after an hour in the BIOS - which
                  pretty much loads the system around 80% - not bad for a totally silent, passive-cooled system.

                  Even if it does go up to low-mid sixties, it is perfectly fine, and would not cause a problem at all.
                  These mobile setups van handle/tolerate the heat better than nmost out there, just do yourself
                  the favor and look at your laptop-temps every so often. My Santa-Rosa based IBM T61p idles at
                  mid-high 60's...








                  I will take more pics during the week, I have mounted the Intel 80gb SSD, as well as Sata CF adapter,
                  routed the power-cabling to these 2 devices, and have the SSD running. I need to source another proper
                  angled SATA cable to connect the CF adapter.

                  Good progress though, and the front and back plates will be done next - I have a nice piece of left-over
                  material from one of my Lian-Li casemods, so I will do a new IO-plate, and front cover for the Aeeon case.

                  Will keep you posted
                  F6 Tornado Project Log ; HP Blackbird Watercooled Server

                  Beta Tester for Centrafuse and 3dConnexion (No business affiliation with either)

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                  • #10
                    Awesome machine work, and looks like a great project
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                    • #11
                      Looking good, Phillip!!

                      That IS a tiny little machine! What are you using this for, again?


                      And, did you get a chance to glance at the project I'll be embarking on? What are your thoughts on passively cooling an i7 620M (35w TDP)??

                      I've got material set aside for your other pieces, and I'm anxious to see how these turn out! They should really complete your other project. (You guys should see what Phillip has been working on... it's (excuse the language, but it's appropriate...) BAD-A$$!!

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                      • #12
                        Wow, he definitely did a great job cutting those! And good work designing it too, the spacing is perfect!
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                        Blog

                        Qube v1.3 Now Available at the mp3Car Store!!!!!!
                        The simplest IO controller you'll ever use!

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                        • #13
                          Heya Guys,
                          Ta for the feedback and appreciation

                          @ Colin: Yeah, Brian definately knows his story around the Milling-machine - trust me, in real life this looks even better than on the photos!!

                          @ Brian: I am developing this little beast as a Human Interface Device in Process Control Environment....plus a few other functions. To be honest though, it will do very well as a carputer device too, my original thinking for selecting the small, but very powerful motherboard.

                          Honestly, this boots, from cold, into fully loaded Windows 7 Desktop, default, standard installation, within 22 seconds - albeit from my Intel G2 SSD.

                          Re: your setup -> You could make a passive-cooled device with the chip you are considering using, only difference to my setup -> I would allow for 4x 6mm, or 2 to 3 8mm heatpipes, seeing as your chip includes the integrated graphics-core too.

                          Make sure you have a decent heatsink-surface, ie the roof of your case - make it something like 200x200mm, and possibly 25mm to 30mm high (the fins)

                          This should work very well, and keep the mobile chip happy and comfy, around 55-60 deg C.

                          Keep me posted - you can find those heatpipes from Coolermaster Shop in the Netherlands.....or you can search online for locations in the USA that will sell these
                          F6 Tornado Project Log ; HP Blackbird Watercooled Server

                          Beta Tester for Centrafuse and 3dConnexion (No business affiliation with either)

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                          • #14
                            I know I'm resurrecting an old thread, but do you still have this heatsink? I have the same Commell and could use a heatsink like this (if available). The weather has been hot this year and I don't like my T7500's fan sound

                            If you only have the single one on your board, would it be possible to commission a copy?
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                            • #15
                              Originally posted by galvitron View Post
                              I know I'm resurrecting an old thread, but do you still have this heatsink? I have the same Commell and could use a heatsink like this (if available). The weather has been hot this year and I don't like my T7500's fan sound

                              If you only have the single one on your board, would it be possible to commission a copy?
                              Hello Galvitron, did You still need one of these? Apologies for the late reply! I only saw this post today. I can help You out if Your want? Let me know!
                              F6 Tornado Project Log ; HP Blackbird Watercooled Server

                              Beta Tester for Centrafuse and 3dConnexion (No business affiliation with either)

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