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3D Printer Cooling

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I have a 3D printer with dual extruders. The heater bar above the hot ends is not carrying away the heat well enough. It's the regular design with 2x 40mm fans sitting in front of 2x 40mm grills, and the grills sit against the heater bar.


what I am looking to do is improve the heat conduction. Water cooling seems a bit OTT, however I think I can do something with the fan arrangement.


Looking to buy a thermal pad to sit between the heatsink and heater bar. Am I right in thinking that a pad avertised as 7W/mk is better than one advertised as 3.2W/hk?


Other ideas would be welcome - cooling is not a speciality subject for me.



    WCUK Staff

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Hi Joe,


Correct, the higher than W/mK the better the heat transfer, also don't forget that the pads when compressed are roughly 50% there original thickness so take that into account if you need to fill a specific gap with the pad.

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