Extruder Calibration Test Rectangle

I made this to try out a method to calibrate the extruder multiplier. I used the method in this video: https://www.youtube.com/watch?v=N-7uX6Dw-7A

This method really cleaned my prints up. It is an automated way for you to find the sweet spot for the extruder multiplier and filament temperature for each filament you are using.

Before you get to this step, I suggest you do the following:

First, I would make sure your stepper drivers are tuned to the correct voltage for the motor being driven. https://www.youtube.com/watch?v=89BHS9hfSUk

Next, I would calibrate your extruder. https://www.youtube.com/watch?v=YUPfBJz3I6Y