Is this 3D model free to download?

Yes, Super Simple 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 berky93, 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.

Super Simple Belt Tensioner 3D printable model by berky93

Super Simple Belt Tensioner

Source: Thingiverse by berky93

The Super Simple Belt Tensioner is a free printable 3D model from Thingiverse by berky93. Super simple belt tensioner for the Wanhao Duplicator i3 (and clones). You can download the STL file from the original listing below and print it at home.

Open in Thinger (free) Download from Thingiverse

2,688 saves Source: Thingiverse Updated 2026-10-24 License: CC-BY · commercial OK 24 makes Category: 3D Printer

Tags: balco, belt, Cocoon, duplicator, monoprice, tension, Wanhao

About this model

Super simple belt tensioner for the Wanhao Duplicator i3 (and clones). Using this you can have easy-install and easy-tighten belts without the issues caused by the built-in spring tensioners. It's a quick print and works on both the X and Y axis. In addition to the two printed parts, you'll need: - 1x M3 22mm bolt -- You could use a different length, but 22mm is what I used. Any longer and you'll have to either modify the model or hold it steady by hand while screwing in the first few mms until the guide grooves engage. Any shorter and you'll lose variable length and have to use a tighter initial state for the belts. - 1x M3 nut -- Nylocs are preferred to keep the belts from loosening. - (optional) small zip ties -- For managing the excess belt length. Installation is super simple: 1. __Pr…

Frequently asked questions

Is this 3D model free to download?: Yes. Super Simple 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 berky93.
Who made this model?: Designed by berky93, 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.