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Update primeline so that it runs along the rectangle of the first layer #498

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merged 5 commits into from
Feb 27, 2024
Merged

Update primeline so that it runs along the rectangle of the first layer #498

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da75f1d
Update primeline so that it runs along the rectangle of the first layer
elpopo-eng Feb 24, 2024
0870c2f
Add default prime_line_margin
elpopo-eng Feb 24, 2024
9747667
Update prime_line.cfg
elpopo-eng Feb 25, 2024
4a1d799
more flexible adaptive primeline
Frix-x Feb 26, 2024
6dc72d2
fixed case where prime line could belong outside the bed
Frix-x Feb 27, 2024
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20 changes: 18 additions & 2 deletions macros/helpers/prime_line.cfg
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Original file line number Diff line number Diff line change
Expand Up @@ -30,6 +30,19 @@ gcode:
{% set prime_line_y = params.START_Y|default(prime_line_y)|float %}
{% set prime_line_direction = params.LINE_DIRECTION|default(printer["gcode_macro _USER_VARIABLES"].prime_line_direction)|string|upper %}

# Redefine start position from fl_size
{% set fl_size=printer['gcode_macro START_PRINT'].fl_size %}
{% if fl_size != "0_0_0_0" %}
{% set prime_line_margin = params.LINE_MARGIN|default(printer["gcode_macro _USER_VARIABLES"].prime_line_margin|float) %}
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{% set min_x, min_y, max_x, max_y = fl_size.split("_")|map('float') %}
{% set prime_line_x = [[prime_line_x, min_x - prime_line_margin] | max, max_x + prime_line_margin] | min %}
{% set prime_line_y = [[prime_line_y, min_y - prime_line_margin] | max, max_y + prime_line_margin] | min %}
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{% endif %}

{% set axes_max = printer.toolhead.axis_maximum %}
{% set prime_line_way = -1 if (prime_line_direction == "X" and prime_line_x > axes_max.x/2) or (prime_line_direction == "Y" and prime_line_y > axes_max.y/2) else 1 %}


{% if verbose %}
{action_respond_info("Prime line length: %.4f" % prime_line_length)}
{action_respond_info("Prime line eight: %.4f" % prime_line_height)}
Expand Down Expand Up @@ -92,10 +105,12 @@ gcode:

# Prime line
G92 E0

{% if prime_line_direction == "X" %}
G1 X{prime_line_x + prime_line_length} E{prime_line_purge_distance} F{speed}
G1 X{prime_line_x + prime_line_way*prime_line_length} E{prime_line_purge_distance} F{speed}
{% elif prime_line_direction == "Y" %}
G1 Y{prime_line_y + prime_line_length} E{prime_line_purge_distance} F{speed}
G1 Y{prime_line_y + prime_line_way*prime_line_length} E{prime_line_purge_distance} F{speed}

{% else %}
{ action_respond_error("Prime line direction is not valid. Choose either X or Y in the variables.cfg file!") }
{% endif %}
Expand All @@ -116,3 +131,4 @@ gcode:
{% if filament_sensor_enabled and re_enable_filament_sensor %}
SET_FILAMENT_SENSOR SENSOR="runout_sensor" ENABLE=1
{% endif %}

1 change: 1 addition & 0 deletions user_templates/variables.cfg
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Expand Up @@ -61,6 +61,7 @@ variable_prime_line_length: 40 # length of the prime line on the bed (in mm)
variable_prime_line_purge_distance: 30 # length of filament to purge (in mm)
variable_prime_line_flowrate: 10 # mm3/s used for the prime line
variable_prime_line_height: 0.6 # mm, used for actual cross section computation
variable_prime_line_margin: 5 # distance of purge line from fl_size rectangle

## Park position used when pause, end_print, etc...
variable_park_position_xy: -1, -1
Expand Down