Snap-in Air Fan Shroud v2 for CTC i3 MK8 extruder with the metal holder

thingiverse

This design builds upon the concept found at http://www.thingiverse.com/thing:1243891, with a key modification to fit snugly within an aluminum extruder holder that's 5mm shorter than usual. To prevent heat damage from the hot end, it's recommended to place a sheet of foil in front of this area as a protective shield. The shroud should be securely fastened into its position to ensure a tight seal and prevent any unwanted movement or vibration. A revised version has been created with an added lip that secures the shroud over the Fan bolt, while also incorporating an air outlet on the side for improved airflow. To print this design successfully, it's essential to orient your printer so that the flat surface is facing downwards, then remove any supports from both the lip and air inlet before completion.