Prusa i3 MK3 Alternative part cooling duct  3D printable model by robrps
Prusa i3 MK3 Alternative part cooling duct  photo 1 Prusa i3 MK3 Alternative part cooling duct  photo 2 Prusa i3 MK3 Alternative part cooling duct  photo 3 Prusa i3 MK3 Alternative part cooling duct  photo 4 Prusa i3 MK3 Alternative part cooling duct  photo 5 Prusa i3 MK3 Alternative part cooling duct  photo 6

Prusa i3 MK3 Alternative part cooling duct

Source: Thingiverse by robrps

The Prusa i3 MK3 Alternative part cooling duct is a free printable 3D model from Thingiverse by robrps. Update 23-Aug-2018: I've published an updated version, but am leaving this up as some people quite like the nozzle viewing cutout. You can download the STL file from the original listing below and print it at home.

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474 saves Source: Thingiverse Updated 2026-10-16 License: CC-BY · commercial OK 5 makes Category: 3D Printer

Tags: cooling, cooling duct, Original Prusa i3 MK3, Original Prusa MK3, part cooler, part cooling duct, prusa, prusa i3, prusa i3 mk3

About this model

Update 23-Aug-2018: I've published an updated version, but am leaving this up as some people quite like the nozzle viewing cutout. New design is here - This is an alternative part cooling duct for use on an Original Prusa i3 MK3. Print, swap out the old one, carry on. Exits are aimed just below the nozzle and from 3 sides. I've also added in a viewing slot so that you can see the nozzle a little bit better (similar, but not as open as the one from here I'll add some more photos of the final part on it's own once I've printed off this iteration, which only has some text and cosmetic fillets added.EDIT: Added photos

Frequently asked questions

Is this 3D model free to download?
Yes. Prusa i3 MK3 Alternative part cooling 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 robrps.
Who made this model?
Designed by robrps, 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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