1.When removing the hot end of the print head and reinstalling it, you must check whether the print head is in place. (If it is not installed in place, the hot end nozzle may scrape the hot bed)
2. Note: Do not insert the hot end cable in place as shown in the left picture. Please insert the hot end cable in place as shown in the right picture. (If the hot end cable is not installed in place, it may cause the hot end to fail to heat.)
