Scan Calibration

Go through calibration of your Cartographer

Verify zero reference position!

Ensure that your zero_reference_position is set to a sensible value, usually the middle of your bed.

Verify this by issuing the G0 X<blank> Y<blank> command with the values from your configuration.

[bed_mesh]
zero_reference_position: <blank>, <blank>        

Scan calibration

1

Home your printer's X and Y axes

G28 X Y

2

Start calibration

This will move your toolhead to the zero reference position and start calibration

If you have already done Touch calibration you can run CARTOGRAPHER_TOUCH_HOME followed by CARTOGRAPHER_SCAN_CALIBRATE METHOD=touch instead and skip straight to the end.

CARTOGRAPHER_SCAN_CALIBRATE

3

Move nozzle to 0.1mm above the bed

Use the TESTZ Z=-0.01 macro to slowly lower your nozzle. Use ABORT if you wish to abort.

You can use Mainsail or Fluidd to have a nice interface to support you during these moves.

We want to get our nozzle to as close to 0.1mm off the bed as we can. You can use a feeler gauge or a piece of paper, simply stop once it catches.

Visually ensure that there is still a gap between your nozzle and the bed.

TESTZ Z=-0.01

4

Accept manual homing

Now press accept, or run the ACCEPT macro to continue calibration. The nozzle will move up above the bed and slowly lower while recording the frequency response. Make sure the printer is stable and do not touch the bed or gantry.

ACCEPT

5

Save the calibrated model

Once done, you will be prompted to run SAVE_CONFIG. The Klipper firmware should restart and you will be able to home using G28.

SAVE_CONFIG