ok, the npn probe is conected. the v+ and 'ground' are conected to the boards power supply rails, theres a 150/100k resiter set up, and the sencer output is connected to pin1.22
untriggered the light is on, on the sencor, and zero volts on the out put
triggered the sencer light goes out and theres +4.89v
M119 returns a '0' for untriggerred and a '1' for triggered.
but…G32 starts, homes and then goes to the first point of a three point auto bed leval, the head goes down, the sencer light goes out, and the head then triggers the Zmin end stop.
on pronterface, a M999 is required, after doing so theres a 30 second pause before anything will execute. if you try more than once all comands are executed after the 30 second pause.(as in 5 or 6 moves will exexute) where as any other time pronterface only returns 2 lines max.
so what do i try next?
# Endstops endstops_enable true # the endstop module is enabled by default and can be disabled here #corexy_homing false # set to true if homing on a hbit or corexy alpha_min_endstop 1.24^! # add a ! to invert if endstop is NO connected to ground alpha_max_endstop nc # NOTE set to nc if this is not installed alpha_homing_direction home_to_min # or set to home_to_max and set alpha_max alpha_min 0 # this gets loaded after homing when home_to_min is set alpha_max 180 # this gets loaded after homing when home_to_max is set beta_min_endstop 1.26^! # beta_max_endstop nc # beta_homing_direction home_to_min # beta_min 0 # beta_max 200 # gamma_min_endstop 1.28^! # gamma_max_endstop nc # gamma_homing_direction home_to_min # gamma_min 0 # gamma_max 110 # # optional order in which axis will home, default is they all home at the same time, # if this is set it will force each axis to home one at a time in the specified order homing_order XYZ # x axis followed by y then z last # optional enable limit switches, actions will stop if any enabled limit switch is triggered alpha_limit_enable true # set to true to enable X min and max limit switches beta_limit_enable true # set to true to enable Y min and max limit switches gamma_limit_enable true # set to true to enable Z min and max limit switches alpha_fast_homing_rate_mm_s 50 # feedrates in mm/second beta_fast_homing_rate_mm_s 50 # " gamma_fast_homing_rate_mm_s 4 # " alpha_slow_homing_rate_mm_s 25 # " beta_slow_homing_rate_mm_s 25 # " gamma_slow_homing_rate_mm_s 2 # " alpha_homing_retract_mm 3 # distance in mm beta_homing_retract_mm 3 # " gamma_homing_retract_mm 0.5 # " #endstop_debounce_count 100 # uncomment if you get noise on your endstops, default is 100 # optional Z probe zprobe.enable true # set to true to enable a zprobe zprobe.probe_pin 1.22^ # pin probe is attached to if NC remove the ! zprobe.slow_feedrate 2 # mm/sec probe feed rate #zprobe.debounce_count 100 # set if noisy zprobe.fast_feedrate 20 # move feedrate mm/sec zprobe.probe_height 5 # how much above bed to start probe gamma_min_endstop 1.28^! # normally 1.28. Change to nc to prevent conflict, # associated with zprobe the leveling strategy to use leveling-strategy.three-point-leveling.enable true # a leveling strategy that probes three points to define a plane #and keeps the Z parallel to that plane leveling-strategy.three-point-leveling.point1 10,80 # the first probe point (x,y) optional may be defined with M557 leveling-strategy.three-point-leveling.point2 150,80 # the second probe point (x,y) leveling-strategy.three-point-leveling.point3 80,60 # the third probe point (x,y) leveling-strategy.three-point-leveling.home_first true # home the XY axis before probing leveling-strategy.three-point-leveling.tolerance 0.03 # the probe tolerance in mm, anything less that this will be ignored, default is 0.03mm #leveling-strategy.three-point-leveling.probe_offsets 0,0,0 # the probe offsets from nozzle, must be x,y,z, default is no offset leveling-strategy.three-point-leveling.save_plane true # set to true to allow the bed plane to be saved with M500 default is false