Geeetech Aluminium / Mk 8 Extruder additional fan shroud

This shroud takes an additional 40x10mm cooling fan and ejects cool air onto the nozzle and extruded filament. I found that if I printed very fine vertical elements the residual heat warped and melted the model. I also made a thin gasket using thick cardboard to help seal the gap between the fan and the shroud. You could also use that thin plastic/polystyrene packing stuff that comes with disk drives and the like.

It was designed for the Mk8 extruder fitted to a Geeetech Aluminum (Prusa i3 cl