Upgrade your Ender Extender Non-Pro to a metal motor mount and larger 42-40 motor with removable gear.
We just received these from Creality today ( Jan 20, 2021)! These should really improve performance on the Y axis. We had to make a compromise on the non-pro kits when we decided to 3D print the motor mount (ABS). This was due to a design choice to use the 2040 Y axis in the horizontal vs vertical position. A side effect of the plastic mount is heat build up in the small Y motor.
Will require longer belt and ESteps recalibration because the gear is larger than the original.