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Blob purge #240

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Blob purge #240

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46e54ee
Initial porting of RatOS prime blob
jamincollins Mar 15, 2024
580f144
Adding prime blog to KAMP settings
jamincollins Mar 15, 2024
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228 changes: 228 additions & 0 deletions Configuration/Blob_Purge.cfg
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Original file line number Diff line number Diff line change
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# Author: Jamin Collins <[email protected]>
# based on RatOS: https://github.com/Rat-OS/RatOS-configuration/blob/v2.x/macros.cfg#L180

# WARNING: DO NOT EDIT THIS FILE
# To override settings from this file, you can copy and paste the relevant
# sections into your printer.cfg and change it there.

[gcode_macro BLOB_PURGE]
variable_probe_for_priming_result: None
gcode:
_PROBE_FOR_PRIMING
_ADD_PRIME_PROBE_TO_OFFSET
_BLOB_PURGE
_SUBTRACT_PRIME_PROBE_FROM_OFFSET

[gcode_macro _BLOB_PURGE_SETTINGS]
variable_debug: False
variable_adaptive_prime_offset_threshold: -1.0
variable_prime_x: 5
variable_prime_y: 5
# default to moving forward (increasing y, aka toward back of most printers)
variable_y_direction: 1
variable_fan_speed: 50
variable_travel_speed: 0
gcode:

[delayed_gcode _SET_TRAVEL_SPEED]
initial_duration: 1
gcode:
{% set travel_speed = printer["gcode_macro _BLOB_PURGE_SETTINGS"].travel_speed %}
{% if travel_speed == 0 %}
{% set travel_speed = printer.toolhead.max_velocity * 60 * 0.5 | float %}
SET_GCODE_VARIABLE MACRO=_BLOB_PURGE_SETTINGS VARIABLE=travel_speed VALUE={travel_speed}
{% endif %}

[gcode_macro _BLOB_PURGE]
description: Prints a blog purge, used internally, if configured, as part of the START_PRINT macro. Slower than LINE_PURGE but much more effective.
gcode:
SAVE_GCODE_STATE NAME=blob_purge_state
{% set debug = printer["gcode_macro _BLOB_PURGE_SETTINGS"].debug %}

M117 Priming nozzle with blob purge..
RESPOND MSG="Priming nozzle with blob purge.."

# don't want to travel at the absolute maximum configured, let's go 50%
{% set travel_speed = printer["gcode_macro _BLOB_PURGE_SETTINGS"].travel_speed %}
{% set cross_section = printer.configfile.settings.extruder.max_extrude_cross_section | float %}

{% set z = printer.configfile.settings.bed_mesh.horizontal_move_z|float %}
{% set z_speed = printer.configfile.settings.stepper_z.homing_speed * 60 | float %}
{% set fan_speed = printer["gcode_macro _BLOB_PURGE_SETTINGS"].fan_speed%}

{% set x_start = printer["gcode_macro _BLOB_PURGE_SETTINGS"].prime_x %}
{% set y_start = printer["gcode_macro _BLOB_PURGE_SETTINGS"].prime_y %}

{action_respond_info("Blob purge starting at {}, {}".format(
(x_start),
(y_start)
)) }

{% set y_factor = printer["gcode_macro _BLOB_PURGE_SETTINGS"].y_direction %}

{% if cross_section < 5 %}
{action_respond_info("[Extruder] max_extrude_cross_section is insufficient for purge, please set it to 5 or greater. Purge skipped.")}
{% else %}
# Absolute positioning
G90
# Relative extrusion
M83
# Lift to start print Z height
G0 Z{z} F{z_speed}
# move close to blob position along the edge of the print
G1 X{x_start} F{travel_speed}
G1 Y{y_start + (15 * y_factor)} F{travel_speed}
# Lower to blob extrusion height
G1 Z0.5 F{z_speed}
# Move to final position horizontally
G1 Y{y_start} F{travel_speed}
# Extrude a blob
G1 F60 E20
# 40% fan
M106 S{fan_speed}
# Move the extruder up by 5mm while extruding, breaks away from blob
G1 Z5 F100 E5
# Move to wipe position, but keep extruding so the wipe is attached to blob
G1 F200 Y{y_start + (25 * y_factor)} E1
# Go down diagonally while extruding
# Broken down in z moves under 2mm as a workaround for a tuning tower test.
# The tuning tower command thinks a new print has been started when z moves over 2mm and aborts.
G1 F200 Y{y_start + (30 * y_factor)} Z3.8 E0.5
G1 F200 Y{y_start + (35 * y_factor)} Z2.6 E0.5
G1 F200 Y{y_start + (40 * y_factor)} Z1.4 E0.5
G1 F200 Y{y_start + (45 * y_factor)} Z0.2 E0.5
# 0% fan
M106 S0
# small wipe line
G1 F200 Y{y_start + (50 * y_factor)} Z0.2 E0.6
# Break away wipe
G1 F{travel_speed} Y{y_start + (100 * y_factor)}
{% endif %}
RESTORE_GCODE_STATE NAME=blob_purge_state

[gcode_macro _PROBE_FOR_PRIMING]
gcode:
SAVE_GCODE_STATE NAME=probe_for_priming_state
RESPOND MSG="Probing the prime location.."
{% set debug = printer["gcode_macro _BLOB_PURGE_SETTINGS"].debug %}
{% set speed = printer["gcode_macro _BLOB_PURGE_SETTINGS"].travel_speed %}
{% set x_start = printer["gcode_macro _BLOB_PURGE_SETTINGS"].prime_x %}
{% set y_start = printer["gcode_macro _BLOB_PURGE_SETTINGS"].prime_y %}
{% set z = printer.configfile.settings.bed_mesh.horizontal_move_z|float %}
{% set z_speed = printer.configfile.settings.stepper_z.homing_speed * 60 | float %}
# get bed mesh config object
{% set mesh_config = printer.configfile.config.bed_mesh %}

# Get probe offsets
{% if printer.configfile.settings.bltouch is defined %}
{% set x_offset = printer.configfile.settings.bltouch.x_offset|float %}
{% set y_offset = printer.configfile.settings.bltouch.y_offset|float %}
{% elif printer.configfile.settings.probe is defined %}
{% set x_offset = printer.configfile.settings.probe.x_offset|float %}
{% set y_offset = printer.configfile.settings.probe.y_offset|float %}
{% elif printer.configfile.settings.beacon is defined %}
{% set x_offset = printer.configfile.settings.beacon.x_offset|float %}
{% set y_offset = printer.configfile.settings.beacon.y_offset|float %}
{% else %}
{ action_raise_error("No probe or bltouch section found. Adaptive priming only works with [probe] or [bltouch].") }
{% endif %}

# get configured bed mesh area
{% set min_x = mesh_config.mesh_min.split(",")[0]|float - x_offset %}
{% set min_y = mesh_config.mesh_min.split(",")[1]|float - y_offset %}
{% set max_x = mesh_config.mesh_max.split(",")[0]|float - x_offset %}
{% set max_y = mesh_config.mesh_max.split(",")[1]|float - y_offset %}

# make sure probe coordinates lie within the configured mesh area
{% set x_start = [[x_start, max_x]|min, min_x]|max %}
{% set y_start = [[y_start, max_y]|min, min_y]|max %}

RESPOND MSG="_PROBE_FOR_PRIMING: Probing the prime location at X: {x_start} Y: {y_start}"

# Absolute positioning
G90
# Relative extrusion
M83
# Lift to horizontal_move_z
G0 Z{z} F{z_speed}
# move close to blob position
G1 X{x_start} Y{y_start} F{speed}
_PROBE_CURRENT_POSITION
_SAVE_PROBE_RESULT VARIABLE=probe_for_priming_result
RESTORE_GCODE_STATE NAME=probe_for_priming_state

[gcode_macro _SAVE_PROBE_RESULT]
gcode:
{% set debug = printer["gcode_macro _BLOB_PURGE_SETTINGS"].debug %}
{% set last_z = printer.probe.last_z_result %}
{% if debug == True %}
{action_respond_info("_SAVE_PROBE_RESULT: last_z: {}".format(
(last_z)
)) }
{% endif %}
SET_GCODE_VARIABLE MACRO=BLOB_PURGE VARIABLE={params.VARIABLE|default('last_z')} VALUE={last_z}

[gcode_macro _PROBE_CURRENT_POSITION]
gcode:
SAVE_GCODE_STATE NAME=probe_current_position_state
{% set kamp_settings = printer["gcode_macro _KAMP_Settings"] %} # Pull variables from _KAMP_Settings
{% set probe_dock_enable = kamp_settings.probe_dock_enable | abs %} # Pull probe dockable probe settings from _KAMP_Settings
{% set attach_macro = kamp_settings.attach_macro | string %} # Pull attach probe command from _KAMP_Settings
{% set detach_macro = kamp_settings.detach_macro | string %} # Pull detach probe command from _KAMP_Settings
; perhaps this can be asserted?
{% if probe_dock_enable %}
; query the probe state, if triggered, fetch?
{attach_macro}
{% endif %}
PROBE
{% if probe_dock_enable %}
{detach_macro}
{% endif %}
RESTORE_GCODE_STATE NAME=probe_current_position_state MOVE=1 MOVE_SPEED={printer.configfile.settings.stepper_z.homing_speed * 60 | float}

[gcode_macro _ADD_PRIME_PROBE_TO_OFFSET]
gcode:
{% set debug = printer["gcode_macro _BLOB_PURGE_SETTINGS"].debug %}
{% set last_z = printer["gcode_macro BLOB_PURGE"].probe_for_priming_result|float(9999.9) %}
{% if printer.configfile.settings.bltouch is defined %}
{% set z_offset = printer.configfile.settings.bltouch.z_offset|float %}
{% elif printer.configfile.settings.probe is defined %}
{% set z_offset = printer.configfile.settings.probe.z_offset|float %}
{% else %}
{ action_raise_error("No probe or bltouch section found. Adaptive priming only works with [probe] or [bltouch].") }
{% endif %}
{% if last_z == 9999.9 %}
{ action_raise_error("No probe result found for prime area. This is likely a bug.") }
{% endif %}
{% if debug == True %}
{ action_respond_info("last_z: {}, z_offset: {}".format(
(last_z),
(z_offset),
)) }
{% endif %}
{% set adjustment = last_z - z_offset %}
{% set adjustment_threshold = printer["gcode_macro _BLOB_PURGE_SETTINGS"].adaptive_prime_offset_threshold|float %}
{% if adjustment < adjustment_threshold %}
{ action_raise_error("Abnormal probe offset detected. Needed offset of {} is below the offset threshold of -1mm. Please verify the probe is over the bed when probing for priming. If it isn't, you should adjust you min/max bed_mesh settings so the probe is always over the print area.".format(
(adjustment)
)) }
{% endif %}
RESPOND MSG="_ADD_PRIME_PROBE_TO_OFFSET: adjusting z offset by {adjustment}."
SET_GCODE_OFFSET Z_ADJUST={adjustment} MOVE=1

[gcode_macro _SUBTRACT_PRIME_PROBE_FROM_OFFSET]
gcode:
{% set last_z = printer["gcode_macro BLOB_PURGE"].probe_for_priming_result|float(9999.9) %}
{% if printer.configfile.settings.bltouch is defined %}
{% set z_offset = printer.configfile.settings.bltouch.z_offset|float %}
{% elif printer.configfile.settings.probe is defined %}
{% set z_offset = printer.configfile.settings.probe.z_offset|float %}
{% else %}
{ action_raise_error("No probe or bltouch section found. Adaptive priming only works with [probe] or [bltouch].") }
{% endif %}
{% if last_z == 9999.9 %}
{ action_raise_error("No probe result found for prime area. This is likely a bug.") }
{% endif %}
{% set adjustment = z_offset - last_z %}
RESPOND MSG="_SUBTRACT_PRIME_PROBE_FROM_OFFSET: adjusting z offset by {adjustment}"
SET_GCODE_OFFSET Z_ADJUST={adjustment} MOVE=1
1 change: 1 addition & 0 deletions Configuration/KAMP_Settings.cfg
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Expand Up @@ -3,6 +3,7 @@
#[include ./KAMP/Adaptive_Meshing.cfg] # Include to enable adaptive meshing configuration.
#[include ./KAMP/Line_Purge.cfg] # Include to enable adaptive line purging configuration.
#[include ./KAMP/Voron_Purge.cfg] # Include to enable adaptive Voron logo purging configuration.
#[include ./KAMP/Blob_Purge.cfg] # Include to enable adaptive blog purging configuration.
#[include ./KAMP/Smart_Park.cfg] # Include to enable the Smart Park function, which parks the printhead near the print area for final heating.

[gcode_macro _KAMP_Settings]
Expand Down