Thermaltake make a 1U
'skived' copper HS without the central gap, get them at
theoverclockingstore.co.uk ...
For more detailed pics without the fan search for some of Volenti's posts in this forum~section...
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I'd make the fin area a little bit bigger than the cores size but no bigger, I think reducing the height of the fins would help as well, 3 to 5mm maybe?. Also making a 'jet' so it concentrates the water and makes it the right width like Cathars 'whitewater wonder!' would help
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The Thermaltake 1U is a firm favourite of mine at the moment, it's a H2o block maker/modders dream!
, I'd like to cross cut one into 'pins' and incorporate it in a radial design. soon, soon, but I'm busy at the mo' :shrug: ...