Is this 3D model free to download?

Yes, Tronxy X3 x-belt tensioner 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 idig3d, 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.

Tronxy X3 x-belt tensioner 3D printable model by idig3d

Tronxy X3 x-belt tensioner

Source: Thingiverse by idig3d

The Tronxy X3 x-belt tensioner is a free printable 3D model from Thingiverse by idig3d. The acrylic pulley mount for the x-belt left a lot to be desired on my Tronxy X3. You can download the STL file from the original listing below and print it at home.

Open in Thinger (free) Download from Thingiverse

1,314 saves Source: Thingiverse Updated 2026-10-24 License: CC-BY-NC-SA · non-commercial 26 makes Category: 3D Printer

Tags: 2020, Belt Tensioner, idig3d, TRONXY, TronXY X1, Tronxy X3, X belt, X belt tensioner

About this model

The acrylic pulley mount for the x-belt left a lot to be desired on my Tronxy X3. The belt rubbed again the edge of the end of the extrusion rubbing of bits of rubber, and warped a bit with the belt a bit off kilter. Not good. Reuses existing bits. Only needs an M5x25 screw and an M5 nut. If you this helps and want to encourage my insanity, buy a cup of coffee for me, a bag of coffee, or you pick the value. Thanks! A y-belt tensioner is available, too. UPDATE: Changed the print orientation of the shaft part to hopefully ease installation. Modified the end cap with a slightly deeper lip and orientation arrows. Modified the knob to cover the screw end better. Included the new parts in the set. UPDATE: Added a flatter endcap as a request by Budi. UPDATE: Added a (hopefully) better design for …

Frequently asked questions

Is this 3D model free to download?: Yes. Tronxy X3 x-belt tensioner 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 idig3d.
Who made this model?: Designed by idig3d, 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.