Ender 3 Pro / V2 Extruder Arm

thingiverse

This is a replacement extruder tensioner bearing arm / lever for the Ender 3 Pro / Ender 3 V2 printers. At this moment, if you are using the stock plastic bowden tube extruder assembly, you are either lucky enough it hasn't broken yet, it's currently failing on you, or it already has and it's causing your filament to not be pushed through to the extruder and your prints are getting worse and worse. In either case, I recommend you print this part to replace it ASAP, and if it's already broken try and find some super glue to fix it temporality while you print this. It's a combination of a few designs I've tried and didn't quite work for me. You won't need any extra parts for this to work, all you need is the screws, bearing, and insert from the original to put into it. Printed it as is, put it together and it seems to be working fine in my printer, going to see if it outlasts the original. I definitely recommend going online / Amazon to order an aluminium version of the extruder assembly to replace it.