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

Super!! This addition to my Ender 3 Pro is amazing. No more do I have to balance pulling on the wheel and keep tension on the belt while I tighten the nut. This product makes it a breeze. And it is good quality. Anodized Aluminum with easy install. Highly recommend.

Perfection took 3-5minutes for me to install and I’m a not an expert it 3 bolts to remove and install its thickness is just right reliability the amount of play or stretch u get is just right u get both ends of the spectrum loose to tight makes the sheerness of the line perfectly tont took the dip out of the middle I had on mine before upgrade my printer is a cr10s 400mm clone

If the carriage inside width was just smidge wider the problem I experienced could be avoided, and this thing could be hacked to use the original bearings in the Creality tensioner mechanism. For me, the pulley itself is rubbing on the tension carriage adding dragging and screeching. If the part were better designed, they could give some relief to hold the center of the bearing in place yet leave clearance for the pulley. Or the whole center part of the carriage could be made wider and some thing washers inserted to create the clearance. And this should really be using a shoulder bolt instead of a fully threaded M5 part so the bearings are riding on a shaft instead of undersized thread.

Easy item, lower tension to work smoothly

Crashed into the bed while its running through the ABL process ONLY when its running through the center row. All others seem to not have an issue.

This worked quite nicely in my CR-10. Its great being able to just turn a knob instead of pull on something and tighten bolts. If you know, you know.

Its a great pre-assembled compact and sturdy little product. I know these can be 3d printed, however; I had been having issues with the belt tensioning leaving me unable to print the parts I needed. It even fits the y axis of the ender 5 plus as well as the x axis!

This really helps keep the x axis belt tight. Has really improved my print quality.

After fussing with the original bracket on my cr-10s for about an hour, I decided to get this and had it installed and adjusted within 15 minutes. Worked!

I installed this on a Longer LK1 (Alfawise U20) and is does exactly what I wanted it to. This part is well designed and manufactured with precision. Surfaces are smooth and square with no burrs and the bearing is quality. It also ships with quality fasteners/hardware.... not the cheap, mass produced stuff that usually comes with attachment pieces and easily strips or elongates. Purchase with confidence - you wont be disappointed.