The function corresponding to this fault is "motion accuracy calibration", which calibrates the motion error of the toolhead mechanical motion system, including distortion and hysteresis, through the absolute positioning of the visual encoder, so as to compensate and correct such motion errors in the actual printing process. During the calibration process, it is crucial for the toolhead camera to recognize the pattern on the visual encoder. If the pattern on the visual encoder cannot be accurately recognized, this error may occur.
Please refer to: Motion accuracy calibration
Common Scenarios Causing the Error:
Incorrect placement of the visual encoder
Severe deformation or contamination of the encoder board
Dirty/obstructed Toolhead Camera lens
Excessive ambient light causing image overexposure
During the calibration process, the top chamber LED will automatically turn off. If you manually turn on the top chamber LED during this process, or install an additional fill light in the printer chamber, the brightness may be too high and the toolhead camera may overexpose the photo, resulting in calibration failure.
If the above troubleshooting is normal, please restart the printer.
If the error still occurs multiple times, please check whether the toolhead camera connector is loose, refer to Replace H2D Toolhead Camera.
We hope the detailed guide provided has been helpful and informative.
If this guide does not solve your problem, please submit a technical ticket, will answer your questions and provide assistance.
If you have any suggestions or feedback on this Wiki, please leave a message in the comment area. Thank you for your support and attention!