Is this 3D model free to download?

Yes, Anet A8 Improved Y-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 freemark, 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.

Anet A8 Improved Y-belt Tensioner 3D printable model by freemark

Anet A8 Improved Y-belt Tensioner photo 1

Anet A8 Improved Y-belt Tensioner

Source: Thingiverse by freemark

The Anet A8 Improved Y-belt Tensioner is a free printable 3D model from Thingiverse by freemark. This Y-belt tensioner is designed to keep the belt pulley in the same position as the original non-adjusting mounting bracket, in order to maintain the correct geometry along the. You can download the STL file from the original listing below and print it at home.

Open in Thinger (free) Download from Thingiverse

2,184 saves Source: Thingiverse Updated 2026-10-25 License: CC-BY-NC-SA · non-commercial 35 makes Category: 3D Printer

Tags: Anet, A8, Improved, Y-belt, Tensioner

About this model

This Y-belt tensioner is designed to keep the belt pulley in the same position as the original non-adjusting mounting bracket, in order to maintain the correct geometry along the Y axis. There are two adjusting screws to allow proper alignment of the belt and prevent lateral movement. Printing this with a brim is recommended. See this link for a pad, designed by ClydeFrog04, that fits under this tensioner and protects the acrylic from being marred by the screws:

Frequently asked questions

Is this 3D model free to download?: Yes. Anet A8 Improved Y-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 freemark.
Who made this model?: Designed by freemark, 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.