I've lined up some time on a three-axis CNC mill so I'm starting to put a design together to make a set of GPU blocks for a SLI set-up. I'd like to go with a design that will provide adequate cooling for a GPU since I won't have the luxury of testing different designs etc.
All mounting holes can hopefully be made into the bottom of the delrin top which will overhang the base like Swiftech's design. VR-Zone had a database of mounting hole dimensions for recent video cards but all the pictures seem to have been removed.
I have to try to keep the machining time down especially in the copper. Pins are about 3mm in height with 2.5mm spacing between the pins. The copper base is also 3mm. I had planned on using a 2mm endmill for the channels and would rather not go smaller than that for machining time purposes. Also my limited ability using Solidworks or any CAD program would mean that I have to keep the deign fairly simple.
Anyway, this is what I've got so far:
