Liquid Cooling Power Supply

[Mathieu Desjardins]

Hi, we're running an Ultimaker 2 modified with a DyzeEnd to print high-temp material. We also want to convert it to liquid cooling since the higher temp of the build area eventually kills off the fan on the hot-end. The fan is also barely enough to keep the heat from creeping up to the bowden. It seems like the simplest solution would be to get a PC liquid cooling kit, but we're stuck on how to power it since normally these would be plugged into the PC's motherboard. 

So, whoever has experience with liquid-cooling their printer, how do you power the fan and pump for the cooling? Can you draw power from the printer's board at the same connection as the fan for the hot-end (assuming they run on the same voltage)? or is there a liquid cooling kit or separate power supply that you can plug-in separately into a 120V outlet?

Merci!

[Patrick Emerick]

I used an Aquacomputer D5 pump which accepts 8-24VDC and Aquacomputer radiator with 24VDC fan. I powered them with the printers 24VDC power supply because the added current consumption was minimal. This was on a BCN3D Sigma with enclosure. The water cooling worked great. With a 50C chamber the extruder and hotend reach about 30C with 25C ambient temperature.

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[Mathieu Desjardins]

Ok thanks, the board on the UM2 board has a 24VDC Fan connector that I think is always on so I'll check if I can branch that off into the pump and radiator fan. I wasn't sure about the current consumption either, so good to know it's minimal. I did find 80mm or 120mm fans that run off of 120V, probably can find pumps on 120V as well, but would rather have the whole kit integrated within that single power supply if possible. 

[Technical Support]

Hi Mathieu!

On our side, we've seen that most of the liquid cooling systems runs on 12V, so we either add a 12V power supply to a printer, or a 24→12 step down. 

As patrick said, the pump load is very low, often below 2A, so it shouldn't be a problem with most 3D printer power supplies.

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