Is this 3D model free to download?

Yes, Screw-style Prusa MK4 X-idler for MK3 is free to download from Printables. Open it in the free Thinger app, or use the "Download from Printables" link to open the original listing by the creator.

Where do I download the STL file?

The download is hosted by Printables. Use the "Download from Printables" 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 szczepaneria, published on Printables. 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.

Screw-style Prusa MK4 X-idler for MK3

Source: Printables by szczepaneria

The Screw-style Prusa MK4 X-idler for MK3 is a free printable 3D model from Printables by szczepaneria. Instead the MK4 style pin, the idler uses now an M3x18 screw and a 2mm high M3 nut You can download the STL file from the original listing below and print it at home.

Open in Thinger (free) Download from Printables

30 saves Source: Printables Updated 2026-09-18 Print time: 2h 12m Filament: 41 g License: GPL · commercial OK 1 makes Category: Decor & Art

Tags: mk3, mk3s, mk3smods, mk3upgrade, mk3splus

About this model

Instead the MK4 style pin, the idler uses now an M3x18 screw and a 2mm high M3 nut

Frequently asked questions

Is this 3D model free to download?: Yes. Screw-style Prusa MK4 X-idler for MK3 is free to download from Printables. Open it in the free Thinger app, or use the "Download from Printables" link above to open the original listing.
Where is the STL hosted?: The download is hosted by Printables, not by Thinger. We link you directly to the original listing by szczepaneria.
Who made this model?: Designed by szczepaneria, published on Printables. 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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