makergear m2 bed lvl and z height calibration

thingiverse

To help with bed leveling, especially on M2 beds, I created a calibration G-code file that prints a single layer with 3 boxes for fine-tuning. The outer boxes require adjustments based on squished or high lines. All the boxes and center line print at the current Z-height. Other stripes are labeled with their heights. The M4 screw has a .7mm pitch, so turning it changes the height by 0.05mm. Run the G-code, fine-tune accordingly, but remember to adjust the bed beforehand and use ABS temps at .15 layer height.