Peltier liquid radiator w/Alpine 11 Plus
thingiverse
Arctic Alpine 11 Plus ($11): https://www.amazon.com/dp/B00606OHQQ Peltier element ($2): http://www.ebay.com/itm/172482401408 Heat transfer block ($3): http://www.ebay.com/itm/371786363221 3mm baltic birch plywood 5-12V power supply (any power brick should work). I built this for my laser cutter, since buying a liquid radiator block already costs around the same, and I need sub-room-temperature cooling since it's constantly 30C+ where I live. This can be used as an additional cooling block for CPUs, although it wouldn't be ideal: although the peltier can get temperature to sub-freezing, it can only move ~70W of heat.
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