Is this 3D model free to download?

Yes, Prusa i3 MK3 - Cooling with a view 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 jltx, 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.

Prusa i3 MK3 - Cooling with a view

Source: Thingiverse by jltx

The Prusa i3 MK3 - Cooling with a view is a free printable 3D model from Thingiverse by jltx. I found a way to improve the cooling AND improve the view of the nozzle AND simplify nozzle changes! Win, win, win. You can download the STL file from the original listing below and print it at home.

Open in Thinger (free) Download from Thingiverse

77 saves Source: Thingiverse Updated 2026-10-05

Tags: Prusa, i3, MK3, -, Cooling, with, a, view

About this model

I found a way to improve the cooling AND improve the view of the nozzle AND simplify nozzle changes! Win, win, win. Wait! There's more: now with garter screw! What's that? It holds up your sock. Screw in M3x18 to provide light touch to hold upper lip of e3d sock. One thing that has always annoyed me about the original Prusa printers is the way the part cooling is attached to the extruder blocks the view of the nozzle printing. I can't tell you how many times I have been able to diagnose a bad/failed print by observing how the nozzle is laying down plastic. I also didn't like that you need to partially disassemble for nozzle changes. So I set out to get 360 degree cooling while fixing these problems. I also stumbled on a simple solution for keeping the silicone sock from dragging on the pri…

Frequently asked questions

Is this 3D model free to download?: Yes. Prusa i3 MK3 - Cooling with a view 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 jltx.
Who made this model?: Designed by jltx, 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.