Is this 3D model free to download?

Yes, Prusa i3 MK2(s) & MK3 Spool Holder - Frame Mount - Top Loader 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 MartinMajewski, 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 MK2(s) & MK3 Spool Holder - Frame Mount - Top Loader

Source: Thingiverse by MartinMajewski

The Prusa i3 MK2(s) & MK3 Spool Holder - Frame Mount - Top Loader is a free printable 3D model from Thingiverse by MartinMajewski. Update: As the Beta 5 of the Mark 3 arms show to be functional and easy to print they reached the final status. You can download the STL file from the original listing below and print it at home.

Open in Thinger (free) Download from Thingiverse

6,608 saves Source: Thingiverse Updated 2026-10-04

Tags: Prusa, i3, MK2(s), &, MK3, Spool, Holder, -, Frame, Mount, -, Top, Loader

About this model

Update: As the Beta 5 of the Mark 3 arms show to be functional and easy to print they reached the final status. Therefore, when you have a Prusa i3 MK3, use the Mark 3 arms. All other parts can be reused from the Mark 2. Maybe I will rename them in the future to make the download section more homogeneous. --- Right after l got the Prusa i3 MK2 up and running, I noticed one major flaw of that otherwise fabulous machine: The spool holder! Not only that it looks not as well engineered as the other parts of the machine, but it is also not very convenient regarding usage. Especially if you want to do layer based color printing you have to switch the filament quite often during one print. Bending the original spool holder to release the mounted spool, as well as adjusting it to hold the new one …

Frequently asked questions

Is this 3D model free to download?: Yes. Prusa i3 MK2(s) & MK3 Spool Holder - Frame Mount - Top Loader 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 MartinMajewski.
Who made this model?: Designed by MartinMajewski, 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.