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prime lines without preheating #34

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prime lines without preheating #34

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8c0749d
allow for prime-lines without preheating
rexterkate-adwise Sep 26, 2025
4d6b028
fix indenting
rexterkate-adwise Sep 26, 2025
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24 changes: 13 additions & 11 deletions examples/toolchanger-extra-macros.cfg
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Original file line number Diff line number Diff line change
Expand Up @@ -174,8 +174,9 @@ gcode:


[gcode_macro PRIME_LINES]
description: Prime all active tools before printing.
INITIAL_TOOL= Tool number, optional.
description: Prime tools before printing.
Tx_TEMP= Temperature per tool to prime
TOOL= Initial tool number, optional.
variable_tools_per_x: 6 # Number of tools primed in a single row
variable_lines_per_tool: 4 # Number of prime lines per tool
variable_line_step_y: 2 # Distance between lines in Y axis
Expand Down Expand Up @@ -205,15 +206,16 @@ gcode:
# Figure out the required tools by which tools are preheating
{% for tn in printer.toolchanger.tool_numbers %}
{% set extruder_id = "extruder" + tn|string if tn > 0 else "extruder" %}
{% set tooltemp_param = "T" ~ tn|string ~ "_TEMP" %}

{% if printer[extruder_id].target >= printer.configfile.settings[extruder_id].min_extrude_temp %}
{% if tooltemp_param in params and params[tooltemp_param]|int >= printer.configfile.settings[extruder_id].min_extrude_temp %}
{% set gengar = print_tools.append(tn) %}
{% endif %}
{% endfor %}

# Make sure the initial print tool is the last to prime
{% if params.INITIAL_TOOL is defined %}
{% set initial_tool = params.INITIAL_TOOL|int %}
{% if params.TOOL is defined %}
{% set initial_tool = params.TOOL|int %}

{% if print_tools|length > 1 %}
{% set snorlax = print_tools.pop(print_tools.index(initial_tool)) %}
Expand All @@ -225,7 +227,7 @@ gcode:
{% set bulbasaur = print_tools.insert(0, printer.toolchanger.tool_number) %}
{% endif %}

{% else %}
{% else %}
{% set initial_tool = None %}
{% endif %}

Expand All @@ -234,6 +236,7 @@ gcode:
T{tn}

{% set extruder_id = "extruder" + tn|string if tn > 0 else "extruder" %}
{% set tooltemp_param = "T" ~ tn|string ~ "_TEMP" %}
{% set t_idx = print_tools.index(tn) %}
{% set y_idx = (t_idx/tools_per_x)|int %}
{% set x_tool_list = print_tools[y_idx*tools_per_x:] %}
Expand All @@ -246,7 +249,7 @@ gcode:
G0 Z{z_prime_pos} F{move_speed}

# Wait for temp
M109 S{printer[extruder_id].target} T{tn}
M109 S{params[tooltemp_param]} T{tn}

# Prime Tool
M117 Priming T{tn}
Expand Down Expand Up @@ -280,16 +283,15 @@ gcode:
G0 Z{z_move_pos}

# Reduce temp for tools that are not required yet
{% if params.INITIAL_TOOL is defined %}
{% if params.TOOL is defined %}
{% if initial_tool in print_tools %}
{% if tn != initial_tool %}
M104 S{printer[extruder_id].target-temp_drop} T{tn}
M104 S{params[tooltemp_param]|int - temp_drop} T{tn}
{% endif %}
{% endif %}
{% endif %}

G90

G90
{% endfor %}

RESTORE_GCODE_STATE NAME=PRIME_LINE_STATE
Expand Down