e3d 40 mm fan adapter

fan adapter for e3d hotend v4 (+ v5/v6)
for 40 mm fan
mounted on robo 3d printer

V3 is a shorter version of v2

V4 has larger openings for reduced print time & does not cool the heater block as much as v2/v3

Newest files are:
adapter e3d v4 drill holes.STL
&
adapter e3d v4 square holes.STL