====== What do I need to do after swapping my nozzle, hot end or toolhead? ======
{{tag> faq setup}}

After swapping the nozzle, hot end or toolhead the printer geometry and ofter factors will be different and require certain recalibrations: 

==== Swapped Nozzle ====

This assumes swapping for identical nozzle, not nozzle materials or model/manufacturers, otherwise follow Nozzle + Hot End instructions. 

  * PID
  * gcode z offset
  * flow ratio
  * if previously calibrated (Klipper: PROBE_CALIBRATE), recalibration  of z probe

==== Swapped hot end ====

All the calibration as above for Nozzle plus 

  * filament extrusion temperatures
  * max volumetric flow rate

==== Toolhead ====

All the above calibrations for hot end and nozzle  but first 

  * extruder rotational distance

And then after all other calibrations

  * input shaping