WANHAO i3 Fan duct 3D printable model by Thorped

WANHAO i3 Fan duct

Source: Thingiverse by Thorped

The WANHAO i3 Fan duct is a free printable 3D model from Thingiverse by Thorped. I found the original fan insufficient and it blocked the view of the hotend. You can download the STL file from the original listing below and print it at home.

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53 saves Source: Thingiverse Updated 2026-04-17

Tags: WANHAO, i3, Fan, duct

About this model

I found the original fan insufficient and it blocked the view of the hotend. This asembly requires that you cut the M4 thread, so it goes all the way through the bearing block. Bolt holes for the blower is tight enough in the print for the m4 screws cuts threads. M3 screws and nuts to asemble the two parts The fan is a standard 50x50x15mm 12v blower / radial fan accessories and modifications:

Frequently asked questions

Is this 3D model free to download?
Yes. WANHAO i3 Fan duct is free to download from Thingiverse. Click the "Download free STL" button above to open the original listing.
Where is the STL hosted?
The download is hosted by Thingiverse, not by Thinger. We link you directly to the original listing by Thorped.
Who made this model?
Designed by Thorped, published on Thingiverse. Please credit the creator when sharing your print online.
Can I print this at home?
Yes. This model is intended for home FDM and resin 3D printers. Check the original listing for suggested print settings like layer height and supports.

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