5015 to 40mm Fan Adapter

I noticed that the MK2.5 / MK3 had very poor hotend cooling and that heat creep was becoming a real issue in my enclosure. I'm running an original Prusa MK2s MMU modified with the Zaribo and MK2.3 mods. The problem is that the hotend heatsink has a large number of airflow restrictions and the standard 40mm fans have terrible static pressure output. A 5015 blower fan can maintain a significantly higher static pressure and will actually be able to force air over the heatsink.

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