This tool helps you adjust the number of steps per millimeter for the extruder motor.
Important: This parameter (number of steps per millimeter) is directly derived from the mechanical parts of the printer (the stepper motor, the gear, …) The default value is
93. However, depending on friction, of the state of the gear, you may want to adjust this parameter.
- Measures 120 mm of filament above the extruder and set, with a pen, a mark on the filament:
- Select the extruder’s target temperature you want to use (with the plus and minus buttons) and tap the arrow button (top-right corner).
- The printer starts heating the hot-end and when the target temperature is reached, it extrudes 100 mm of filament.
- Once the extrusion is finished (it takes around a minute), measures the filament remaining between the extruder and your mark:
- Enter the value in mm:
- The computed value (E) is displayed and you can adjust it manually if you want:
Tap the Back button the restart the process.
Tap the Checkmark button to save the settings. They are saved in the EEPROM memory of the motherboard.