Calibration problem

[PLMD86]

Hi markniu I'm installing the bd sensor on a vzbot 330awd but I can't complete the calibration. By placing the nozzle on the plate and launching the M102 S-2 command it gives me a distance of 0.0mm, moving the sensor away to the limit that it can read, it always remains at 0.0mm. I mounted the sensor at a distance of 0.5mm from the nozzle. The version is 1.2 pandapid. If I do the calibration it always gives me the same value but the Z axis doesn't seem to move even if from the Klipper panel I see that from 0 it goes up to 3.9

[PLMD86]

This is my configuration in the printer.cfg

[safe_z_home] home_xy_position: 150,150

[bed_mesh] speed: 120 mesh_min: 20,20 mesh_max: 250,250 probe_count: 6,6 horizontal_move_z: 0.8 algorithm: bicubic

[force_move] enable_force_move: true

[BDsensor] sda_pin: PG14 scl_pin: PG13 delay: 20 z_offset: 0.0 #z_adjust: 0.0 x_offset: 0 y_offset: -23 #no_stop_probe: position_endstop: 0 speed: 0.8

[stepper_z]

In M0 position

step_pin: PE2 dir_pin: PC5 #enable_pin: !PF11 microsteps: 32 rotation_distance: 4 endstop_pin: probe:z_virtual_endstop #make sure to set the correct pin here. #position_endstop: 0.0 position_max: 410 full_steps_per_rotation: 200 homing_retract_dist: 5.0 homing_positive_dir: false homing_speed: 5.0 second_homing_speed: 1 [tmc2209 stepper_z] interpolate: false uart_pin: PC4 run_current: 1.2 stealthchop_threshold: 0

[markniu]

Hello, from the data(250 249 250 ...) , it seems that the nozzle is still touch the bed after it goes up from 0.1 to 0.6 while calibration . so let the nozzle above the bed about 0.1mm and do a calibartion again.