Fan Duct for Wanhao Duplicator 9 / D9

*updated : original model be removed. will re-upload next time.

Although the original fan is not enough for filament cooling, we still giving it a try - to improve the fan duct with the same setup.
The result of cooling is quite okay / better than original, until replacing the more powerful 24V fan.

Printing in PLA / 0.20 mm layer height, with 3+ shells.
Support: Yes

This thing was made via Rhinocero 3d.

Here is the 96 hrs stress printing test.