ABL measurement on my CR-10S Pro V1 crashes at fourth measurement.

  • I recently upgraded my hot end to the Micro-Swiss all metal hot end. After installing it, I zeroed out the bed. Everything seemed fine until I tried to take ABL measurements. On the fourth measurement, the head crashed into the bed and tried to continue in the -Z direction causing a terrible grinding sound. It even does this at the beginning of a print. Has anyone had this issue before? If so what was your fix?

    Creality CR-10S Pro (V1)
    firmware: 1.70.1

  • Dear @Scotsabre, If the nozzle hit the platform, please refer to the tutorial for leveling:

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