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

The biggest problem I have with this tensioner is the poor quality idler. I mounted this on one of my ender 3 pros to test it out and it had a pretty severe wobble on the pully. The unit is easy enough to take apart so the pully could likely be replaces, however... The Y tensioner I received is not designed well for the Ender 3 Pro. Because it mounts to the upper part of the extrusion, instead of the lower like the stock and other y tensioners, it causes you to lose some travel on the Y axis. This is just poor quality and design, look elsewhere.

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

Simple to install and works great to keep the right amount of tension on my Ender 3.

Right Bracket, wrong bolt and wrong bearings to hold the belt. Both dont even fit in the bracket! Look somewhere else

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.

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

I have 3 Standard Ender3s and this is a much needed upgrade. The price is low enough I am not sure why anyone wouldnt pick this up. It does not come with wrenches but the kit you got with your printer has everything you need. Once I found the sizes I need I uninstalled previous tension-er and had this upgrade installed in a little under 3 minutes for each of the 3 printers. All metal design gives a good quality feel. The knob lets me decide how tight I need to belt to be.

I have a Ender 3 Pro and the bed carriage crashes into this tensioner. <--READ UPDATE! UPDATE 9/28/21 : If you use Bigtreetechs firmware for the SKR Mini/TFT35 they change the default bed size to 235x235 instead of the default 220x220 and this will cause the pom wheels on the Y axis to hit this tensioner. To fix this change it back to 220x220!

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

It worked as intended on my Ender 3 Pro