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

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!

Supper easy to install makes adding tension to the x axis simple I like the fact the the bearing is groved for the belt. Should help prevent layer shifts

This a solid unit already assembled ready to go! this took less than 10 minutes to install. Would have been faster but I took my time to get the correct tension with the knob. So easy ( Just 2 included hex screws NOT phillips yayy and 2 tension nuts) I am going right now to purchase 2 more for my other two Ender3 Pros. Thanks UniTak3D for a Great product and super fast Amazon shipping!

Great tensioner, well built. As someone mentioned, if your bed size is set to 235mm, the Y carriage will hit the tensioner, not a problem for me since I upgraded to linear rails.

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.

I purchased this tensioner for my Ender 3 V2 after getting a little carried away tightening the Y-axis belt and breaking the stock tensioner. This was a cheaper option than purchasing a OEM part and a much better alternative. The tensioner is all metal and I have zero fear of overtightening and breaking it. I am very happy with the purchase and would recommend it to anyone wanting to upgrade.

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

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.

This is the second one that I have purchased. Work great and you can adjust on the fly. When installing you can take the item apart and install it without messing with the belts. Happy!!! Thanks

Not really sure if I can find a better one. The only problem is that they get loose over LONG periods of time (like I have to tighten once a month of continuous use). Otherwise, its helped my prints dramatically. Just wish I could lock it in once I got the tightness correct.