Klicky-Probe
Klicky-Probe copied to clipboard
jlas1
Dock if probe is already connected before homing z
Problem:
If your probe signal wire gets disconnected, it will assume the probe is installed (in case of using klicky-pcb at least) and will try to home z without the probe ramming the nozzle into the bed.
Solution: If before homing the probe detected as attached, dock it and attach it again. This way docking will fail and the nozzle will not hit the bed.
I modified the macros as following, but I'm not sure if it's breaking some scenario that I'm not using.
######################
# Attach Probe Routine
[gcode_macro Attach_Probe]
description: Attaches Klicky Probe
gcode:
# See if the position should be restored after the attach
{% set goback = params.BACK|default(0) %}
# Get probe attach status
{% set probe_attached = printer["gcode_macro _Probe_Variables"].probe_attached %}
{% set probe_lock = printer["gcode_macro _Probe_Variables"].probe_lock %}
{% set verbose = printer["gcode_macro _User_Variables"].verbose %}
# Get Docking location
{% set dockmove_x = printer["gcode_macro _User_Variables"].dockmove_x|default(0) %}
{% set dockmove_y = printer["gcode_macro _User_Variables"].dockmove_y|default(0) %}
{% set dockmove_z = printer["gcode_macro _User_Variables"].dockmove_z|default(0) %}
{% set docklocation_x = printer["gcode_macro _User_Variables"].docklocation_x %}
{% set docklocation_y = printer["gcode_macro _User_Variables"].docklocation_y %}
{% set docklocation_z = printer["gcode_macro _User_Variables"].docklocation_z %}
{% set attachmove_x = printer["gcode_macro _User_Variables"].attachmove_x|default(0) %}
{% set attachmove_y = printer["gcode_macro _User_Variables"].attachmove_y|default(0) %}
{% set attachmove_z = printer["gcode_macro _User_Variables"].attachmove_z|default(0) %}
{% set attachmove2_x = printer["gcode_macro _User_Variables"].attachmove2_x|default(0) %}
{% set attachmove2_y = printer["gcode_macro _User_Variables"].attachmove2_y|default(0) %}
{% set attachmove2_z = printer["gcode_macro _User_Variables"].attachmove2_z|default(0) %}
# Safe Z for travel
{% set safe_z = printer["gcode_macro _User_Variables"].safe_z %}
{% set enable_z_hop = printer["gcode_macro _User_Variables"].enable_z_hop %}
# Set feedrates
{% set travel_feedrate = printer["gcode_macro _User_Variables"].travel_speed * 60 %}
{% set dock_feedrate = printer["gcode_macro _User_Variables"].dock_speed * 60 %}
{% set release_feedrate = printer["gcode_macro _User_Variables"].release_speed * 60 %}
{% set z_drop_feedrate = printer["gcode_macro _User_Variables"].z_drop_speed * 60 %}
{% set bypass_probe_docking = printer["gcode_macro _User_Variables"].bypass_probe_docking|default(False) %}
_entry_point function=Attach_Probe
{% if bypass_probe_docking == False %}
# If x and y are not homed
{% if not 'xy' in printer.toolhead.homed_axes %}
{ action_raise_error("Must Home X and Y Axis First!") }
_KlickyDebug msg="Attach_Probe Axis homed"
{% else %}
{% if probe_attached %}
{% if verbose %}
{ action_respond_info("Probe already attached!") }
{% endif %}
# Probe attached, do nothing
_KlickyDebug msg="Attach_Probe probe already attached, doing nothing"
_CheckProbe action=query
Dock_Probe
{% endif %}
# If probe not attached and locked
{% if not probe_lock %}
_KlickyDebug msg="Attach_Probe going to attach probe"
{% if verbose %}
{ action_respond_info("Attaching Probe") }
{% endif %}
_KLICKY_STATUS_BUSY
{% if not 'z' in printer.toolhead.homed_axes %}
{% if verbose %}
{ action_respond_info("Resetting Z position to zero") }
{% endif %}
_KlickyDebug msg="Attach_Probe Z not homed, setting position as X=Y=Z=0"
SET_KINEMATIC_POSITION Z=0
{% if not enable_z_hop %} # Disables safe_z
_KlickyDebug msg="Attach_Probe z_hop disabled"
{% set safe_z = 0 %}
{% endif %}
{% endif %}
# Prior to saving actual position, check if its necessary to move to a safe Z
# that has enought overhead for the attached probe
{% if printer.gcode_move.gcode_position.z < safe_z %}
_KlickyDebug msg="Attach_Probe toolhead too low, raising it to {safe_z}mm from {printer.gcode_move.gcode_position.z}mm"
{% if verbose %}
{ action_respond_info("moving to a safe Z distance") }
{% endif %}
G0 Z{safe_z} F{z_drop_feedrate}
{% endif %}
{% if not 'z' in printer.toolhead.homed_axes %} #duplicate??
{% if verbose %}
{ action_respond_info("Resetting Z position to zero, duplicate?") }
{% endif %}
_KlickyDebug msg="Attach_Probe Z not homed, setting position as X=Y=Z=0"
SET_KINEMATIC_POSITION Z=0
{% endif %}
{% if printer.gcode_move.gcode_position.z < safe_z %} #duplicate??
_KlickyDebug msg="Attach_Probe toolhead too low, raising it to {safe_z}mm from {printer.gcode_move.gcode_position.z}mm"
G0 Z{safe_z} F{z_drop_feedrate}
{% endif %}
_Umbilical_Path
_entry_point function=Attach_Probe_intern
# Probe entry location
_KlickyDebug msg="Attach_Probe moving near the dock with G0 X{docklocation_x|int - attachmove_x|int - attachmove2_x|int} Y{docklocation_y|int - attachmove_y|int - attachmove2_y} F{travel_feedrate}"
G0 X{docklocation_x|int - attachmove_x|int - attachmove2_x|int} Y{docklocation_y|int - attachmove_y|int - attachmove2_y} F{travel_feedrate}
{% if docklocation_z != -128 %}
_KlickyDebug msg="Attach_Probe moving near the dock with G0 Z{docklocation_z|int - attachmove_z|int - attachmove2_z|int} F{dock_feedrate}"
G0 Z{docklocation_z|int - attachmove_z|int - attachmove2_z|int} F{dock_feedrate}
_KlickyDebug msg="Attach_Probe moving near the dock with G0 Z{docklocation_z|int - attachmove_z|int} F{dock_feedrate}"
G0 Z{docklocation_z|int - attachmove_z|int} F{dock_feedrate}
{% endif %}
# if necessary do some actions before moving the toolhead to dock
_DeployKlickyDock
# Drop Probe to Probe location
{% if docklocation_z != -128 %}
_KlickyDebug msg="Attach_Probe moving to the dock with G0 Z{docklocation_z} F{dock_feedrate}"
G0 Z{docklocation_z} F{dock_feedrate}
{% endif %}
_KlickyDebug msg="Attach_Probe moving to the dock with G0 X{docklocation_x|int - attachmove2_x|int} Y{docklocation_y|int - attachmove2_y} F{dock_feedrate}"
G0 X{docklocation_x|int - attachmove2_x|int} Y{docklocation_y|int - attachmove2_y} F{dock_feedrate}
_KlickyDebug msg="Attach_Probe moving to the dock with G0 X{docklocation_x} Y{docklocation_y} F{dock_feedrate}"
G0 X{docklocation_x} Y{docklocation_y} F{dock_feedrate}
# Probe Attached
{% if docklocation_z != -128 %}
_KlickyDebug msg="Attach_Probe moving from the dock to G0 Z{docklocation_z|int - attachmove_z|int} F{z_drop_feedrate}"
G0 Z{docklocation_z|int - attachmove_z|int} F{z_drop_feedrate}
{% endif %}
_KlickyDebug msg="Attach_Probe moving from the dock to G0 X{docklocation_x|int - attachmove_x|int} Y{docklocation_y|int - attachmove_y|int} F{release_feedrate}"
G0 X{docklocation_x|int - attachmove_x|int} Y{docklocation_y|int - attachmove_y|int} F{release_feedrate}
# if necessary do some actions after attaching the probe
_RetractKlickyDock
## Go to Z safe distance
{% if ((printer.gcode_move.gcode_position.z < safe_z) or (docklocation_z != -128 and docklocation_z < safe_z ))%}
_KlickyDebug msg="Attach_Probe moving to a safe Z position: G0 Z{safe_z} F{z_drop_feedrate} from {printer.gcode_move.gcode_position.z}"
G0 Z{safe_z} F{z_drop_feedrate}
{% endif %}
_Park_Toolhead
_CheckProbe action=attach
_exit_point function=Attach_Probe_intern move={goback}
_KLICKY_STATUS_READY
{% elif probe_lock %}
{% if verbose %}
{ action_respond_info("Probe locked!") }
{% endif %}
# Probe attached, do nothing
_KlickyDebug msg="Attach_Probe probe locked not attaching probe"
_CheckProbe action=query
{% endif %}
{% endif %}
_exit_point function=Attach_Probe
{% else %}
_KlickyDebug msg="Attach_Probe probe docking bypassed, doing nothing"
{% endif %}