UniTak3D Ender 3 V2 Y-axis Belt Tensioner Upgrade for Creality Ender 3 V2 Ender 3 Pro CR10 Mega Zero 2.0 Flashforge-Aquila AURORA-A5X 3D Printer 2040 Profile

Its built nice, but it does NOT work on the ender 3 X belt. The pulley is too small and the belt will run against the 2020 extrusion. Now I have to order a bigger pulley to make it work. What a waste.

Excellent product, will purchase again soon!

I had a belt starting to sag a bit so I decided to pick one of these up and its went right one easy and has made keeping the belts tight SOOO much easier.

Works great!!!! I had one I printed and it worked but this is so much more fitting for the printer style....strong and slim!!! I love this x axis belt tightener!!! Went on easier than the printed one and is super solid Perfect upgrade for an ender 3

Much easier to tension the belt but the hole through the sheave is not bored true making the sheave wobble as it turns. Looks great but this little issue is disappointing.

A great choice for anyone who wants to replace the original Belt Stretch Straighten Tensioner on the Ender 3D printer.

This is very good for the price, highly recommend this product

Replaced a printed (PLA) tensioner on my CR-10 mini that came apart after a year or two of wear and tear. While I like printing mods in general, this is just more solid, easy to adjust and fits the rail and belt perfectly. The old printed mod was a little off and had some wiggle that led to some annoying belt rubbing from time to time.

Installed and worked fine. Normally would get 4 or 5 stars from me. But after a couple months my printer got really loud during printing. When I held the tensioner it stopped. Turned out the bearings are crud. Took it apart and cleaned it. Tiny little bearing turned 20 qtips rusty orange. Its already sounding bad again so Ill be buying some bearings and replacing them. Highly recommend disassembling, decreasing, and relubricating the bearings with something more resistant to rust.

High quality aluminum construction, belt can be perfectly hand tensioned. Super easy install. Must have upgrade for creality machines.