See
- Cartesian Kinematics
- [quad_gantry_level] - Config
- [quad_gantry_level] - Gcodes
- Faster QUAD_GANTRY_LEVEL Macro
Note that:
- The strength of the scanner probes is at an equidistant Z-level during meshing and not necessarily during Z-homing (constantly changing Z-level).
- Homing moves (QGL is somewhat of a homing move) at high velocities can be detrimental to accuracy.
- If you generally have a stable bed and trust it, it is much better to work with only small Z-movements instead.