Nozzle Height Calibration

The nozzle height calibration (ex “probe calibration”) sets and stores the value on the FABtotum Personal Fabricator in order to be at the right distance from the bed once the print starts.
Follow these instructions to correctly execute the nozzle height calibration procedure.

  1. In the “Maintenance” menu select “Nozzle height calibration”
  2. Now you can choose the assisted calibration or fine calibration.
  3. Choosing the “Assisted calibration”, will start the assisted calibration.


  4. Wait until the nozzle get hot (when it’s hot it’s longer due to thermal expansion).
  5. Put a piece of copy paper (80 g/m2). Wait for the probe to exit from its housing.
  6. Move the paper adjusting the height by pressing “Z+” or “Z-” until it barely rubs against the nozzle, then press “Calibrate”

  7. The unit will set the parameters. The procedure is completed.

    probe_calibration_paper.jpg

    Additional advice: “Fine calibration” allows you to enter a precise offset. Do not use this option if you are not sure as a wrong value might damage the unit.