Extra strong extruder arm - Ender 3
thingiverse
My ender 3's extruder arm broke right as a certain virus led me to have no income. And I couldn't just ship a cheap one from china because of this same virus. So based on a design by hop111 I made an extruder arm that added tension and could hold the wheel in place even if the model wouldn't print perfectly or even completely I clipped of part of a metal screw and some duct tape to what was left of my printer's extruder and printed this design. After installing it I could go back to printing as normal. How to remove the extruder? Just remove this one screw: 
With this file you will be able to print Extra strong extruder arm - Ender 3 with your 3D printer. Click on the button and save the file on your computer to work, edit or customize your design. You can also find more 3D designs for printers on Extra strong extruder arm - Ender 3.