Identical Neptune blocks .
with a Low heatload, the ALu was not too bad, 2-3°c difference between the Cu/Alu version at 50W.
The Alu sucked at 80W load, 8-10°c differnceial, and things got nasty after 100W so i stpped testing.
Both CNC'd
I have hacked the Block now, but Ill get some pics later.
Yes It was part of the R&D on the block - I wanted to check viablility to make a budget block , it was that bad I scrapped the whole idea.
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