Anet A8 Y-belt tensioner V2 3D printable model by YoshiCat

Anet A8 Y-belt tensioner V2

Source: Thingiverse by YoshiCat

The Anet A8 Y-belt tensioner V2 is a free printable 3D model from Thingiverse by YoshiCat. Add new file for part V2_2, it is a little longer (V2_2L) for a better fit for the shorter original belt. You can download the STL file from the original listing below and print it at home.

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54 saves Source: Thingiverse Updated 2026-04-18

Tags: Anet, A8, Y-belt, tensioner, V2

About this model

Add new file for part V2_2, it is a little longer (V2_2L) for a better fit for the shorter original belt. Add new file for part 3 to made it stronger, now V2_3 ( old one seems to break with some people ) Part 3 needs to be print with 100% infill. Add 2 new V2 files with improvement of the parts 1 and 2. (See last photo) This new version makes the construction more rigid If you use the new parts you will need a longer screw for the belt tension This tensioner can be installed without any modification on the a8 and makes it easy to tighten the belt. For mounting on the frame are four M3 x 18 screws and four M3 nuts needed. For the tension you need one M3 x 18 screw and 1 M3 locknut. And two more M3 x 20 with locknut to mount the bearings and the pivot point. I used three M3 washers on the be…

Frequently asked questions

Is this 3D model free to download?
Yes. Anet A8 Y-belt tensioner V2 is free to download from Thingiverse. Click the "Download free STL" button 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 YoshiCat.
Who made this model?
Designed by YoshiCat, 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.

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