Scanning

Cartographer implements a Klipper probe interface and exposes functionality similar to what you'd expect from an induction probe, with the benefit of eddy current for accurate measurements.

This means that homing, QUAD_GANTRY_LEVEL and Z_TILT_ADJUST, simply works as expected, but looks slightly different. Cartographer will lower until the trigger point of 2 mm and will then take 20 readings of the frequency to determine the exact distance. This means there is on reason to lift the probe and run a probing move again.

Measure probe accuracy

We can check the accuracy of the scan by running PROBE_ACCURACY. This will run a few probes and output some statistics, like seen below.

probe accuracy results: maximum 2.000898, minimum 1.999665, range 0.001233, average 2.000008, median 1.999758, standard deviation 0.000449

Bed mesh calibrate

We can make use of the probes ability to take rapid measurements by scanning as we move quickly across the bed.

After setting up Cartographer, your BED_MESH_CALIBRATE macro will by default do this.

To take full advantage, we should increase the density of the mesh. We should be able to move across the bed with a speed of at least 300 mm/s.

To fall back to the default Klipper behavior, run BED_MESH_CALIBRATE METHOD=automatic .