Bed Leveling and Z offset calibration G-Code files for Ender 3

thingiverse

Human: G-code files from Cura stock profiles for Ender 3 are provided to test bed leveling, along with Z-offset files to calibrate the ideal Z offset that results in a perfect first 0.2 mm layer - the squares are 0.2mm high. On each Z offset model, the negative offset used is written; closely inspect what appears to be the perfect layer and enter this value into your slicer (download the Cura Z offset plugin from their marketplace or access it under printer settings in Prusa Slicer). Firstly: Print the CE3_Z_BedLeveling.gcode and examine the difference between the squares. Rotate the bed leveling knobs until all of them look similar, even if they are initially split lines - the next step will address the Z offset. As you can see from my image, my left side bed was too low, resulting in split lines. Secondly: Begin with CE3_Z_offset_0.gcode and increment through to CE3_Z_offset-1.gcode until your print displays a perfect layer appearance. Finally: Update your slicer with the Z offset that yielded the best results for you. For my printer, I found that -0.075mm was the ideal setting; I entered this value into the slicer (Z offset -0.075), and now I can achieve a perfect first layer.