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Originally Posted by ricecrispi
Milling that last one will be a ball buster. The walls are so thin and adding bends will make it hard not cut throuigh a wall.
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I was thinking I would point-drill precisely where each bend was going to take place. Then I would just need to mill the paths between the drilled holes. And to ensure the correct angles I'll use a theaded mounting block. Since the base has 8 mounting holes all I need to do for the 45-degree sections is unmount the block, then remount it at a 45-degree angle from the path of travel.
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forget cutting all the channel on the perimeter of the block. It just reduces flow and gives no improvement in cooling. Just remove all the metal on the ouside.
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Good idea. Like so?
I'll try the design without the bends in each channel next.