My nozzle will randomly crash into my bed when auto leveling.



  • I have a new Ender-3 V2 and installed a BLtouch kit. I purchased everything from the Creality store at the same time. I have the 4.2.2 board and have installed the current firmware from the Creality website: Marlin 2.0.1 - V1.1.1 bltouch.

    It prints and levels great. However it will randomly, during bed leveling, touch the bed and set the sensor red and stop. The sensor will then start to blink like there is an error and lower the Y axis crashing into the bed. I have to quickly turn off the printer to stop it from continuing to push.

    Any suggestions?



  • Assuming that all your wires are plugged into the correct locations.

    Try the firmware from Smith3D.com. That works well with my Ender 3 V2 with Creality BLTouch.



  • Dear @Peanutt

    It should be the X-axis hit the hot bed plate, not the Y-axis, check the Z-axis limiter wiring to see if there is a problem or bad


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