Name: 4040 aluminum profile Y-axis synchronous belt stretching
Material: aluminum alloy
Surface treatment: anodizing
Suitable for ENDER-3 PRO
Excellent assistance from the staff.
Used this and X Tensioner on the CR20 Pro, both work great. Used the mounting holes to help register position and add some strength.
Works well and makes belt tension adjust so much easier.
I've only had it installed for a day but it works well so far and seems solid. It was pretty easy to put together and install but it would've been great to have some installation instructions included. Pro-tip: You can unhook the Y-axis belt, install the tensioner, and then re-connect the belt, but re-attaching the Y-belt can be almost as frustrating as building the tensioner in-place around the belt.
Upgrade 4040 Y-axis Ender-3 Pro Belt Tensioner For Creality Ender 3 Pro