Remote fan mount for E3D Hotend

thingiverse

These parts enable users to tap into a 19mm ID hose, such as one from a CPAP machine, to redirect airflow directly to an E3D v5 or v6 hotend, powered by a remote 40mm fan. Specifically crafted for use within an enclosed printer environment. Updates: Initially built with an experimental first version and subsequent improvements for enhanced airflow, further refinements were made when turning the axial 40mm fan into a high-velocity centrifugal fan through rehousing in a custom-designed base. The second iteration successfully produces a considerable increase in airflow performance compared to stock fans. Additional updates reveal extensive testing verifying the centrifugal modification's functionality. Although yielding slightly lower air output than the standard fan, it can still facilitate prints lasting over 7 hours using ABS plastic with no adverse consequences reported. However, a notable consideration: prolonged heat absorption might cause problems when attempting to print PLA material, particularly given the intense heat accumulated by the bottom two fins of the integrated heat sink. **Installation Instructions** The walls of the external fan housing are constructed at 1.5mm thickness, prompting the utilization of 2 perimeters with an applied width of 0.35mm for optimal printing results. Crucially, additional support is essential for ensuring proper attachment and stability of the modified centrifugal conversion fan base, recommended for printing with ABS material.