Is this 3D model free to download?

Yes, Anycubic Kossel Top 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 Atziano, 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.

Anycubic Kossel Top Belt Tensioner

Source: Thingiverse by Atziano

The Anycubic Kossel Top Belt Tensioner is a free printable 3D model from Thingiverse by Atziano. This thing is an top mounted belt tensioner which allows you to adjust the tightness of the timing belts with screws. You can download the STL file from the original listing below and print it at home.

Open in Thinger (free) Download from Thingiverse

32 saves Source: Thingiverse Updated 2026-10-06

Tags: Anycubic, Kossel, Top, Belt, Tensioner

About this model

This thing is an top mounted belt tensioner which allows you to adjust the tightness of the timing belts with screws. It is possible to lift up the top belt wheel for about 7mm. If you put the timing belt already a bit taut during assembly, you will never need the full 7mm. In my case, I only needed about 2mm. In addition, these also serve as covers for the upper pulleys. The belt tensioners is made out of two parts: the housing and the slider. For all three belts of the Kossel, you need these two parts three times. Also the belt have to be replaced because the position of the upper belt weel is about 15mm higher mounted. So the orginal belt is too short...unless you have left something extra length on the original timing belt. For the assembly you need (for all three sides): - 3 longer ti…

Frequently asked questions

Is this 3D model free to download?: Yes. Anycubic Kossel Top 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 Atziano.
Who made this model?: Designed by Atziano, 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.