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Tc exit options #51

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904cb2f
Add tool change behavior configuration options
3DPrintDemon Aug 26, 2026
c0e7318
Enhance tool change macros with new variables and logic
3DPrintDemon Aug 26, 2026
9e2e8ad
Introduce _RESTORE_GRABBER macro for tool changes
3DPrintDemon Aug 26, 2026
af288ca
Update exit pickup handling in indx-tc-macros.cfg
3DPrintDemon Aug 27, 2026
8cc3415
Clean up unused nozzle cleaning configuration
3DPrintDemon Aug 27, 2026
e617cbb
Update macros/indx-tc-macros.cfg
3DPrintDemon Aug 28, 2026
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87 changes: 84 additions & 3 deletions macros/indx-tc-macros.cfg
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Original file line number Diff line number Diff line change
Expand Up @@ -61,6 +61,10 @@ variable_accel_mult: 0.7
variable_speed_mult: 0.7
variable_toolhead_state: 0 # 0=Locked, 2=Open
variable_rotation_dist_overridden: 0
variable_exit_pickup: False
variable_valid_restore: True
variable_restore_x: 50

@charliemayall charliemayall Aug 26, 2026

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no setter exists for either of restore_x or restore_y

@3DPrintDemon 3DPrintDemon Aug 27, 2026

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missed from original file, genuine mistake that has now been added. Thanks

variable_restore_y: 50
gcode:

[delayed_gcode INIT_STATE]
Expand Down Expand Up @@ -213,14 +217,84 @@ gcode: _SET_MODE M=sport A=1.0 S=1.0 C=1
[gcode_macro _TC_G0]
gcode:
{% set v = printer["gcode_macro _TOOLCHANGE_VARS"] %}
{% set tp = printer["gcode_macro TOOL_POSITIONS"] %}
{% set final_f = (printer.configfile.settings.printer.max_velocity * 60 * v.speed_mult) %}
G0 {% if 'X' in params %}X{params.X} {% endif %}{% if 'Y' in params %}Y{params.Y} {% endif %}{% if 'Z' in params %}Z{params.Z} {% endif %}F{params.F|default(final_f)|int}

{% if (not tp.park_on_ooze_pad and not tp.restore_pos) or not v.exit_pickup %}
G0 {% if 'X' in params %}X{params.X} {% endif %}{% if 'Y' in params %}Y{params.Y} {% endif %}{% if 'Z' in params %}Z{params.Z} {% endif %}F{params.F|default(final_f)|int}

{% else %}
G0 {% if 'X' in params %}X{params.X} {% endif %}{% if 'Y' in params %}Y{params.Y} {% endif %} F{params.F|default(final_f)|int}
M400

{% if 'Z' in params %}
{% if v.exit_pickup %}
{% if printer.print_stats.state in ["printing", "paused"] %}
# On exit_pickup when printing the toolhead moves to an ooze pad or filament scraper loaction to heat the tool.
{% if tp.park_on_ooze_pad %}
G0 X{tp.pad_x|float}
M400
G0 Y{tp.pad_y|float} F{params.F|default(final_f)|int}

# On exit_pickup when printing the toolhead moves back to exact loaction where the tool change was issued.
# When used with "Tool change on wipe tower" this makes sure the nozzle waits & heats on the tower to catch any oozing as there are no guards yet.
{% elif tp.restore_pos %}
SET_GCODE_VARIABLE MACRO=_TOOLCHANGE_VARS VARIABLE=valid_restore VALUE=True
_TC_XY_RESTORE_CHECK
M400
_TC_XYZ_RESTORE Z={params.Z}
{% endif %}

SET_GCODE_VARIABLE MACRO=_TOOLCHANGE_VARS VARIABLE=exit_pickup VALUE=False

{% else %}
G0 Z{params.Z} F{params.F|default(final_f)|int}
SET_GCODE_VARIABLE MACRO=_TOOLCHANGE_VARS VARIABLE=exit_pickup VALUE=False
{% endif %}
{% endif %}
{% endif %}
{% endif %}

[gcode_macro _TC_XY_RESTORE_CHECK]
gcode:
{% set tp = printer["gcode_macro TOOL_POSITIONS"] %}
{% set v = printer["gcode_macro _TOOLCHANGE_VARS"] %}
{% set act = printer.save_variables.variables.active_tool|default(-1)|int %}

{% for i in range(tp.tools|length) %}
{% set p_x = "t" ~ i ~ "_x"|string %}
{% set p_y = tp.clearance_y|float %}

{% if tp.dock_dir == -1 %}
{% if (v.restore_x == tp[p_x] and v.restore_y|float == p_y) or (i == act and v.restore_y|float < p_y) %}
RESPOND TYPE=COMMAND MSG="Restore coordinates create a non-valid exit point. Skipping restore...."
SET_GCODE_VARIABLE MACRO=_TOOLCHANGE_VARS VARIABLE=valid_restore VALUE=False
{% endif %}

{% else %}
{% if (v.restore_x == tp[p_x] and v.restore_y|float == p_y) or (i == act and v.restore_y|float > p_y) %}
RESPOND TYPE=COMMAND MSG="Restore coordinates create a non-valid exit point. Skipping restore...."
SET_GCODE_VARIABLE MACRO=_TOOLCHANGE_VARS VARIABLE=valid_restore VALUE=False
{% endif %}
{% endif %}
{% endfor %}

[gcode_macro _TC_XYZ_RESTORE]
gcode:
{% set v = printer["gcode_macro _TOOLCHANGE_VARS"] %}
{% set final_f = (printer.configfile.settings.printer.max_velocity * 60 * v.speed_mult) %}

{% if v.valid_restore %}
G0 X{v.restore_x|float} Y{v.restore_y|float} F{params.F|default(final_f)|int}
M400
G0 Z{params.Z|float} F{params.F|default(final_f)|int}
{% endif %}

[gcode_macro _LINEAR_EXIT]
gcode:
{% set tp = printer["gcode_macro TOOL_POSITIONS"] %}
{% set c = printer["gcode_macro _INDX_CONSTANTS"] %}
{% set restore_z = params.RESTORE_Z|default("")|string %}
{% set restore_z = params.RESTORE_Z|default(0)|float %}

{% set clearance_y = tp.clearance_y %}

Expand All @@ -236,7 +310,8 @@ gcode:
# nozzle across the part.
G90
_TC_G0 Y={"%.3f"|format(clearance_y)}
{% if restore_z != "" %}
{% if restore_z > 0 %}
SET_GCODE_VARIABLE MACRO=_TOOLCHANGE_VARS VARIABLE=exit_pickup VALUE=True
M400
_TC_G0 Z={restore_z}
{% endif %}
Expand Down Expand Up @@ -350,6 +425,7 @@ gcode:
# drags the nozzle across the print at both ends of the change.
{% set zhop = tp.z_hop|float %}
{% set restore_z = "%.3f"|format(printer.gcode_move.gcode_position.z) %}
_RESTORE_GRABBER

# 6. Physical tool swap
{% if act != -1 %}
Expand Down Expand Up @@ -510,6 +586,11 @@ gcode:
# 6. HELPER MACROS
#####################################################################

[gcode_macro _RESTORE_GRABBER]
gcode:
SET_GCODE_VARIABLE MACRO=_TOOLCHANGE_VARS VARIABLE=restore_x VALUE={"%.3f"|format(printer.gcode_move.gcode_position.x)}
SET_GCODE_VARIABLE MACRO=_TOOLCHANGE_VARS VARIABLE=restore_y VALUE={"%.3f"|format(printer.gcode_move.gcode_position.y)}

[gcode_macro _RECORD_TOOLCHANGE]
description: Inner — saves active_tool and increments the toolchange counter after every successful pickup
gcode:
Expand Down
21 changes: 21 additions & 0 deletions macros/indx.cfg
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Original file line number Diff line number Diff line change
Expand Up @@ -95,6 +95,27 @@ variable_t2_dock_y: -26
variable_t3_x: 102.0
variable_t3_dock_y: -26

# ── Tool change behaviour when printing ───────────────────────────────────────
# park_on_ooze_pad = if you have an ooze pad or filament scraper on your X/Y axes
# The nozzle will go to this location after a tool change to heat up.

# pad_x = Location on X axis.
# pad_Y = Location on Y axis.

# restore_pos = goes to the last location before the tool change to heat up
# best used with your slicer's "Tool Change on Wipe Tower" setting.

# NOTE: park_on_ooze_pad overrides the restore_pos setting! Also if both are set False
# the standard Bondtech tool change process is carried out.

# NOTE: Don't set pad_x or pad_y where they'll hit the edge of the printer's travel
# on either axis as you could end up with layer shifts &/or possible machine damage.

variable_park_on_ooze_pad: False
variable_pad_x: 10.00
variable_pad_y: 26.00
variable_restore_pos: True

@charliemayall charliemayall Aug 26, 2026

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Doesn't agree with claim that these features are off by default

@3DPrintDemon 3DPrintDemon Aug 27, 2026

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claim is not all features are off by default, but reverts to default exit behaviour when they are turned off.


# ── Assembled at startup from the variables above — do not edit ──────────────
variable_tools: []

Expand Down