Is this 3D model free to download?

Yes, WANHAO i3 Fan duct is free to download from Thingiverse. Open it in the free Thinger app, or use the "Download from Thingiverse" link to open the original listing by the creator.

Where do I download the STL file?

The download is hosted by Thingiverse. Use the "Download from Thingiverse" link on this page to open the original listing and grab the file, or save it to your print queue in the free Thinger app.

Designed by Thorped, published on Thingiverse. Please credit the creator when sharing your print.

Can I print this at home?

Yes. This is a printable 3D model intended for home FDM and resin printers. Check the original listing for suggested print settings.

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.

Open in Thinger (free) Download from Thingiverse

2,493 saves Source: Thingiverse Updated 2026-11-06 License: CC-BY · commercial OK 43 makes Category: 3D Printer

Tags: blower duct, Blower fan, fan duct, fan shroud, part cooler, print cooler, wanhao fan, Wanhao Duplicator I3, Wanhao I3, Wanhao i3 mods

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. Open it in the free Thinger app, or use the "Download from Thingiverse" link 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.