Review on Befenybay 2020 Upgrade: X-Axis Synchronous Belt Tensioner For Creality Ender-3/Ender3 Pro/Ender3 V2/CR-10/CR-10 V2/CR-10 V3/CR-20 Pro –Straighten And Stretch For Enhanced Performance by Dave Sapp

It is a solid well built set of tensioners, but the y axis tensioner (4040) tensioner has very little adjustment. Unlike the (2020) tensioner on X axis. It also leaves a gap between on the front of the printer that just looked ugly. Of course if you can be creative then it isn't as big a deal, but it was still there and i had to be the one to make it to my liking or send it back and put the stock tensioners back on or find another set from a different maker. I did come up with a clean solution in my opinion, but had i know it was gonna be the way it was, i probably would have chosen a different kind. My solution was to cut out the end cover i had when i relocated the on off switch to accommodate the belt i had left over as spare parts.