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Add and use option dwell_before_cut #29

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Add and use option dwell_before_cut #29

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7 changes: 6 additions & 1 deletion svg_to_gcode/compiler/_compiler.py
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Original file line number Diff line number Diff line change
Expand Up @@ -14,7 +14,7 @@ class Compiler:
"""

def __init__(self, interface_class: typing.Type[Interface], movement_speed, cutting_speed, pass_depth,
dwell_time=0, unit=None, custom_header=None, custom_footer=None):
dwell_time=0, unit=None, custom_header=None, custom_footer=None, dwell_before_cut=False):
"""

:param interface_class: Specify which interface to use. The most common is the gcode interface.
Expand All @@ -25,12 +25,14 @@ def __init__(self, interface_class: typing.Type[Interface], movement_speed, cutt
:param unit: specify a unit to the machine
:param custom_header: A list of commands to be executed before all generated commands. Default is [laser_off,]
:param custom_footer: A list of commands to be executed after all generated commands. Default is [laser_off,]
:param dwell_before_cut: Wait dwell time before the cut, not after. Default is False.
"""
self.interface = interface_class()
self.movement_speed = movement_speed
self.cutting_speed = cutting_speed
self.pass_depth = abs(pass_depth)
self.dwell_time = dwell_time
self.dwell_before_cut = dwell_before_cut

if (unit is not None) and (unit not in UNITS):
raise ValueError(f"Unknown unit {unit}. Please specify one of the following: {UNITS}")
Expand Down Expand Up @@ -117,6 +119,9 @@ def append_line_chain(self, line_chain: LineSegmentChain):
self.interface.set_laser_power(1)]

if self.dwell_time > 0:
if self.dwell_before_cut:
code = code + [self.interface.dwell(self.dwell_time)]
else:
code = [self.interface.dwell(self.dwell_time)] + code

for line in line_chain:
Expand Down