Is this 3D model free to download?

Yes, Prusa Y rail alignment tool 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 Jimbo70, 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 Y rail alignment tool 3D printable model by Jimbo70

Prusa Y rail alignment tool

Source: Thingiverse by Jimbo70

The Prusa Y rail alignment tool is a free printable 3D model from Thingiverse by Jimbo70. Although I designed this tool to align the Y rods on my Prusa MK2 Bear modification, it can work equally as well on the Original Prusa MK2. You can download the STL file from the original listing below and print it at home.

Open in Thinger (free) Download from Thingiverse

124 saves Source: Thingiverse Updated 2026-10-13 License: CC-BY · commercial OK Category: 3D Printer

Tags: Prusa alignment, Prusa calibration, Prusa MK2, prusa mk25, prusa bear

About this model

Although I designed this tool to align the Y rods on my Prusa MK2 Bear modification, it can work equally as well on the Original Prusa MK2. Why do you need this alignment? If the Y rods are not parallel and properly separated, stress will be put on the Y rod bearings which will cause them to loosen and wear prematurely. Also, the stepper motors may lose steps because of the stress. In addition, if the rods are not in alignment with the frame, then the firmware needs to make calculations to compensate, which is not the best way to get things square. How do you use the Y Alignment Tool (from now on referred to as ‘YAT’)? First, attach your front left corner Y rod mount in the position suggested by Prusa or the Prusa Bear. This will act as the reference point for all other points. The other t…

Frequently asked questions

Is this 3D model free to download?: Yes. Prusa Y rail alignment tool 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 Jimbo70.
Who made this model?: Designed by Jimbo70, 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.