Is this 3D model free to download?

Yes, Enhanced Anet A8 X-Axis 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 3DGenie_xyz, 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.

Enhanced Anet A8 X-Axis Belt Tensioner 3D printable model by 3DGenie_xyz

Enhanced Anet A8 X-Axis Belt Tensioner photo 1

Enhanced Anet A8 X-Axis Belt Tensioner photo 2

Enhanced Anet A8 X-Axis Belt Tensioner photo 3

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Enhanced Anet A8 X-Axis Belt Tensioner

Source: Thingiverse by 3DGenie_xyz

The Enhanced Anet A8 X-Axis Belt Tensioner is a free printable 3D model from Thingiverse by 3DGenie_xyz. I made this design based on the Improved Anet A8 RepRap X-Axis Belt Tensioner by WedgeSD, which won't work with the stock Anet belt and won't fit into an IKEA Lack Table enclosure. You can download the STL file from the original listing below and print it at home.

Open in Thinger (free) Download from Thingiverse

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

Tags: anet a8 upgrade, Belt Tensioner

About this model

I made this design based on the Improved Anet A8 RepRap X-Axis Belt Tensioner by WedgeSD, which won't work with the stock Anet belt and won't fit into an IKEA Lack Table enclosure. You only need : - 1 M3x30 screw - 2 M3 nuts - 5 M5 washers instead of a pulley - no belt upgrade needed - a metal cylinder of 5mm diameter and 8mm height (see EDIT) The parts are designed to fit exactly in place, but I needed to do some sanding and lubrication (PTFE) to get it to work. With this upgrade, the printer should fit into an IKEA Lack table enclosure. EDIT (important!): After using this model a few months, I have dismantled it and found out that the washers almost completely chewed through the plastic axis. I strongly advise you to use a metal axis if you want to avoid it to break after a while. I took…

Frequently asked questions

Is this 3D model free to download?: Yes. Enhanced Anet A8 X-Axis 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 3DGenie_xyz.
Who made this model?: Designed by 3DGenie_xyz, 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.