Ender 3 Pro Bed Level Test + Calibration Wizard

thingiverse

This is the go-to file I keep on my local SD card for my Ender 3 Pro to quickly and easily calibrate and validate the print bed level for a critical job. This GCODE brings your extruder to the home position, waiting for you to level the bed with a piece of paper. You should feel very slight friction between the bed, paper, and extruder tip - and it should be able to slide without too much difficulty. Once calibrating the first corner, you tap on your Ender 3 Pro console button, and it will proceed to do the other three corners. This happens on all four corners three times. Please note that each time you tweak a corner, it slightly affects the others, so ideally your last round of calibration should have no changes. The printer then does a test print to help verify the bed is both level and flat. Please note that this GCODE uses temperatures specifically for PLA - 210/60 - so modify accordingly for other filament types. 1.) A curved skirt - to see consistent filament flow across the whole print bed. 2.) A 1.5cm filled circle for each of the four corners as well as the center of the plate - to ensure a flat bed. If your bed is not flat, leveling will not fix that, but using the Marlin Firmware’s mesh bed leveling will dramatically improve, or even resolve it. Learn more about this via Michael on ‘Teaching Tech’ here: https://youtu.be/mAU7cIZ0Hns This is a remix of ‘Ender 3 Level Test’ by elmerohueso (https://www.thingiverse.com/thing:2987803) with two key changes needed for the Ender 3 Pro: 1.) A cold extruder during paper level calibration - to prevent any damage to the soft magnetic peel-able bed of the Ender 3 Pro. 2.) Three rounds of level calibration, versus two - to ensure at least one round of calibration serves as proper leveling validation without adjustment.