[Peter Wirasnik] has been casting his own aluminum heat sinks. He’s working on capturing the heat from a car’s exhaust system and turning it into electricity, kind of like the candle generator.

These changes can be seen in designs such as pin fin, skived and blade fin heat sinks ... process that allows the use of highly conductive aluminum and copper alloys, which further improves heat sink ...

Also, skived heat sinks have been perfected by Showa Aluminum (Tokyo) and others to provide high, closely spaced fins to create maximum surface area. The rise in efficiency over traditional systems ...

Here it is carving large heatsinks from a single block of aluminum, but the process works the same for copper. First, engineers lubricate a large metal block and place it in a skiving machine.

i can get a hold of some stock material here at work and i'm thinking about trying to make my own custom heat sink. but i'm having ... i have a coolermaster aluminum heatsink right now ...