Hey there,

I had a problem on the last print. During the print a screw of the bed fall off and the print failed. Since then I have a problem with adjustment of the z-axis or calibration, everything which levels the bed. the motor starts, the bed levels, but it doesn’t stop. It goes up till to top position and the motor doesn’t stop. I think the sensor behind the bed is broken and the printer doesn’t realize, the top position is achieved.

https://youtu.be/qYLJk-RV2v8