Print head dives into print bed

​

If your print head crashes into the print bed during calibration, it is possibly due to the nozzle not being lower than the fan. Below are images depicting this.

• If the nozzle height is too low, it could be the fan is falling out of its position. Simply push it back up and apply a small amount of super glue.

• Or you can unscrew the nozzle a little bit in order to get the nozzle tip to the correct position