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

Great fit and easy install on my CR10 Max. This tensioner is a must for all Creality 3d printers.

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

Cheaper than the ender 3 pros if you buy a cr10 upgrade just need shorter screws witch i had on hand

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

I purchased the 2040 size for my Y-Axis and 2020 for my X-Axis for my CR-10 V3. The X-Axis installed quickly and easily. The Y-Axis would not install correctly, no matter what I did. It turns out that the bolt they provided was too long, and the t-nut did not have space to lock into place. I did have some bolts that were the correct size (M3x8mm) and was able to install the Y-Axis with the correct bolts. Other than the incorrect bolt size, everything else seems to be of good quality. If the right bolts were included from the get-go (and based on other reviews, it probably is for most orders), this is a 5-star product.

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

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.

UniTak3D Upgrade Y-axis Belt Tensioner for Ender 3 3D Printer 4020 Aluminum Profile Our Ender 3 really should have just come with this. The stock tensioner is just sad and imprecise. Belt tensions is one of those tuning items that well all need to do, and repeat as the belts age. Installing this was pretty easy. I did it a little differently than normal I didnt want to bother with detaching the belt. When I got the old adjuster off, I had to take off the large bolt with the pulley on it. Not a big deal. I did the same attaching the new one. I took the bolt out, so I could put the pulley behind the belt. When youre setting it up, you have to do some alignments. You want the belt to be traveling down the center of the beam, not on either side. If it goes to the side, its going to cut the belt, and then youll be replacing the whole belt. Its just a matter of loosening the screws on one side, and pulling it left, right, up, or down, as appropriate. Its not a big deal, and something youd have to do with any of them. There is one thing I dont like. The quality of the pulley. The stock one was much nicer quality, and didnt have the grooves. We dont need grooves on the idler, just on the drive pulley. Unfortunately, the stock pulley wont fit into this new tensioner. Im not sure that it enough to lower the score. Lets call it a 4.5 instead of a 5, but Amazon doesnt allow for that kind of granularity. If the manufacturer is reading this, please put a better pulley on there. Someone else may reduce their review score because of it.

Excellent product, will purchase again soon!

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.