evaporator design

[Blergo]

Hi everyone,
was looking for a heatsink to cut up and make some ramsinks out of earlier and i came accross a spare 1U copper socket A heatsink i had lying around, i imediatley thought about useing it as an evaporator for my direct die system i plan on building sometime soon. I will get a photo of it and im in the middle of makeing a 3D model of what it will hopefully look like when i finished it it is like a 2.5 - 3mm copper base with loads of little copper pins comeing up out of it, i plan on cutting the outer pins of and braseing a top with integrated socket A mountings onto it, the cap tube will spray down onto the core not sure where the suction line should go though? i assume any corner of the block would be good? is this a good idea or will it not work? if not then why?


how i will modify the heatsink, unless someone says otherwise ;-)
http://onfinite.three10.com/libraries/display.php?lid=5067&d=6d259294640b50203823588dcea64d91
http://onfinite.three10.com/libraries/display.php?lid=5068&d=6d259294640b50203823588dcea64d91

top i plan on makeing, not sure it is a good idea to have the hold donw as part of the copper block though, could make it hard to insulate :S
http://onfinite.three10.com/libraries/display.php?lid=5065&d=6d259294640b50203823588dcea64d91
http://onfinite.three10.com/libraries/display.php?lid=5066&d=6d259294640b50203823588dcea64d91

soo...what you guys think then?
owen

[Çhrist0ph]

imo, looks like it would take alot more work to make than a simple evap made out of a solid block of copper on a mill, which might perform the same.

[embro]

i think the idea is good, but the base is too wide, like you said too hard too insulate, not impossible, but harder. Personally the one i am making is square, 110mm², my prescott 2.4A is 112mm².

Btw... what program you use to make it?

im looking for one.

[Blergo]

ok.. well the base is an old heatsink i have. i reacon that if i make the top for it in 2 pieces it will be easier to make (no milling needed) and also i have changed the design a bit so that it is square and the mountings arent part of the block but will be a seperate piece that goes on top of the block. the program i used was emachineshop's own cad package that you can download for free of the net, go do a google for it and im sure you will find it, i then just take a screenshot when im in 3d mode, the idea is you design stuff in the package and it automatially gives you a quote and you can buy your machined components online in any quantities you like.. i just use it to make 3d models of things though because it is easier to do 3d modeling in that autocad ;-) i machine everything myself. :)
owen

[Blergo]

also forgott o mention the block isnt to scale, i just drew it up quickly, like the mounting holes arent in the right places and the actuall size of the base and top arent corect (as i hadnt measured up the heatsink when i made the diagrams ;-))
owen