Combo fan setup for MK8 aluminium direct drive extruder.
One fan for both the heatsink and the filament.
The fan is a 40x40x10mm blower fan BEF0412MS (also known as 4010b).
Part "FAN DUCT" should be printed WITH SUPPORT
Use 2.5mm screws to mount it to the heatsink (hobby servo screws should work)
THE BLOWER HAS TO BE ON ALL THE TIME in order to keep the hotend cool.
Please mind the dimensions (see pictures) before printing to see if it fits your setup.
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