Prusa I3 MK3 Improved Cooling Duct 3D printable model by gustofusion

Prusa I3 MK3 Improved Cooling Duct

Source: Thingiverse by gustofusion

The Prusa I3 MK3 Improved Cooling Duct is a free printable 3D model from Thingiverse by gustofusion. An improved, much more graceful re-work of the Prusa MK3 parts cooling fan duct. 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 2026-04-19

Tags: Prusa, I3, MK3, Improved, Cooling, Duct

About this model

An improved, much more graceful re-work of the Prusa MK3 parts cooling fan duct. Modeled in Fusion 360 rather than scad gives the model a much cleaner look with more refined surfaces, contours and overall general appearance. Also included a Pre sliced version with support built in suitable for PETG Note: May be best if in your slicer you enable thin wall detection so some of the inner walls are sliced properly.

Frequently asked questions

Is this 3D model free to download?
Yes. Prusa I3 MK3 Improved Cooling 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 gustofusion.
Who made this model?
Designed by gustofusion, 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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