E3D Clip-on Fan Mount and Easy Access Makergear M2 Filament Drive

The filament feed part of this "thing" is designed for use with the MakerGear M2 printer, but the fan mount and duct are compatible with many E3D (and clone) hot ends. The feed allows opening from the side in case of jamming. The fan section uses a single fan to cool both the extruder and the deposited filament.

The feeder provides easy inspection of the drive gear and removal of any errant filament or scrap. This design also provides firm mounting of metal E3D-style extruders while allowin