[BladeRunner]

Thanks for the positive feedback, and here's some build images. I started with a pinned all copper 1U heatsink, and initially milled it as shown in the first pic, ( I was designing it as I went like I usually do). Pics are all links to larger ones and should explain it. Before I soldered the lid part on, I drilled small "pits" between the pins with a 3.5mm drill bit above the core area to aid surface area & turbulance below the inlet.

Not 100% final as the inlet barb will be shorter. It's actually a 5/8" barb reamed out internally to 13mm ID, outlets are festo push fit 8mm x 4

Not testsed yet as I have to make the retainer, couldn't easily include lugs on the block due to milling restrictions but I have a plan for mounting it.






Here's a quick check I did once soldered with a low pressure hose just to see it all flowed equally.