668 lines
26 KiB
Perl
668 lines
26 KiB
Perl
package Slic3r::GCode;
|
||
use Moo;
|
||
|
||
use List::Util qw(min max first);
|
||
use Slic3r::ExtrusionLoop ':roles';
|
||
use Slic3r::ExtrusionPath ':roles';
|
||
use Slic3r::Geometry qw(epsilon scale unscale PI X Y B);
|
||
use Slic3r::Geometry::Clipper qw(union_ex);
|
||
|
||
# Origin of print coordinates expressed in unscaled G-code coordinates.
|
||
# This affects the input arguments supplied to the extrude*() and travel_to()
|
||
# methods.
|
||
has 'origin' => (is => 'rw', default => sub { Slic3r::Pointf->new });
|
||
|
||
has 'config' => (is => 'ro', default => sub { Slic3r::Config::Full->new });
|
||
has 'writer' => (is => 'ro', default => sub { Slic3r::GCode::Writer->new });
|
||
has 'placeholder_parser' => (is => 'rw', default => sub { Slic3r::GCode::PlaceholderParser->new });
|
||
has 'ooze_prevention' => (is => 'rw', default => sub { Slic3r::GCode::OozePrevention->new });
|
||
has 'wipe' => (is => 'rw', default => sub { Slic3r::GCode::Wipe->new });
|
||
has 'avoid_crossing_perimeters' => (is => 'rw', default => sub { Slic3r::GCode::AvoidCrossingPerimeters->new });
|
||
has 'enable_loop_clipping' => (is => 'rw', default => sub {1});
|
||
has 'enable_cooling_markers' => (is =>'rw', default => sub {0});
|
||
has 'layer_count' => (is => 'ro');
|
||
has 'layer_index' => (is => 'rw', default => sub {-1}); # just a counter
|
||
has 'layer' => (is => 'rw');
|
||
has '_seam_position' => (is => 'ro', default => sub { {} }); # $object => pos
|
||
has 'first_layer' => (is => 'rw', default => sub {0}); # this flag triggers first layer speeds
|
||
has 'elapsed_time' => (is => 'rw', default => sub {0} ); # seconds
|
||
has 'last_pos' => (is => 'rw', default => sub { Slic3r::Point->new(0,0) } );
|
||
has 'volumetric_speed' => (is => 'rw', default => sub {0});
|
||
|
||
sub apply_print_config {
|
||
my ($self, $print_config) = @_;
|
||
|
||
$self->writer->apply_print_config($print_config);
|
||
$self->config->apply_print_config($print_config);
|
||
}
|
||
|
||
sub set_extruders {
|
||
my ($self, $extruder_ids) = @_;
|
||
|
||
$self->writer->set_extruders($extruder_ids);
|
||
|
||
# enable wipe path generation if any extruder has wipe enabled
|
||
$self->wipe->enable(defined first { $self->config->get_at('wipe', $_) } @$extruder_ids);
|
||
}
|
||
|
||
sub set_origin {
|
||
my ($self, $pointf) = @_;
|
||
|
||
# if origin increases (goes towards right), last_pos decreases because it goes towards left
|
||
my @translate = (
|
||
scale ($self->origin->x - $pointf->x),
|
||
scale ($self->origin->y - $pointf->y), #-
|
||
);
|
||
$self->last_pos->translate(@translate);
|
||
$self->wipe->path->translate(@translate) if $self->wipe->path;
|
||
|
||
$self->origin($pointf);
|
||
}
|
||
|
||
sub preamble {
|
||
my ($self) = @_;
|
||
|
||
my $gcode = $self->writer->preamble;
|
||
|
||
# Perform a *silent* move to z_offset: we need this to initialize the Z
|
||
# position of our writer object so that any initial lift taking place
|
||
# before the first layer change will raise the extruder from the correct
|
||
# initial Z instead of 0.
|
||
$self->writer->travel_to_z($self->config->z_offset, '');
|
||
|
||
return $gcode;
|
||
}
|
||
|
||
sub change_layer {
|
||
my ($self, $layer) = @_;
|
||
|
||
$self->layer($layer);
|
||
$self->layer_index($self->layer_index + 1);
|
||
$self->first_layer($layer->id == 0);
|
||
|
||
# avoid computing islands and overhangs if they're not needed
|
||
if ($self->config->avoid_crossing_perimeters) {
|
||
$self->avoid_crossing_perimeters->init_layer_mp(
|
||
union_ex([ map @$_, @{$layer->slices} ], 1),
|
||
);
|
||
}
|
||
|
||
my $gcode = "";
|
||
if (defined $self->layer_count) {
|
||
$gcode .= $self->writer->update_progress($self->layer_index, $self->layer_count);
|
||
}
|
||
|
||
my $z = $layer->print_z + $self->config->z_offset; # in unscaled coordinates
|
||
if ($self->config->get_at('retract_layer_change', $self->writer->extruder->id) && $self->writer->will_move_z($z)) {
|
||
$gcode .= $self->retract;
|
||
}
|
||
$gcode .= $self->writer->travel_to_z($z, 'move to next layer (' . $self->layer_index . ')');
|
||
|
||
# forget last wiping path as wiping after raising Z is pointless
|
||
$self->wipe->path(undef);
|
||
|
||
return $gcode;
|
||
}
|
||
|
||
sub extrude {
|
||
my $self = shift;
|
||
|
||
$_[0]->isa('Slic3r::ExtrusionLoop')
|
||
? $self->extrude_loop(@_)
|
||
: $self->extrude_path(@_);
|
||
}
|
||
|
||
sub extrude_loop {
|
||
my ($self, $loop, $description, $speed) = @_;
|
||
|
||
# make a copy; don't modify the orientation of the original loop object otherwise
|
||
# next copies (if any) would not detect the correct orientation
|
||
$loop = $loop->clone;
|
||
|
||
# extrude all loops ccw
|
||
my $was_clockwise = $loop->make_counter_clockwise;
|
||
|
||
# find the point of the loop that is closest to the current extruder position
|
||
# or randomize if requested
|
||
my $last_pos = $self->last_pos;
|
||
if ($self->config->spiral_vase) {
|
||
$loop->split_at($last_pos);
|
||
} elsif ($self->config->seam_position eq 'nearest' || $self->config->seam_position eq 'aligned') {
|
||
# simplify polygon in order to skip false positives in concave/convex detection
|
||
# ($loop is always ccw as $polygon->simplify only works on ccw polygons)
|
||
my $polygon = $loop->polygon;
|
||
my @simplified = @{$polygon->simplify(scale $self->config->get_at('nozzle_diameter', $self->writer->extruder->id)/2)};
|
||
|
||
# restore original winding order so that concave and convex detection always happens
|
||
# on the right/outer side of the polygon
|
||
if ($was_clockwise) {
|
||
$_->reverse for @simplified;
|
||
}
|
||
|
||
# concave vertices have priority
|
||
my @candidates = map @{$_->concave_points(PI*4/3)}, @simplified;
|
||
|
||
# if no concave points were found, look for convex vertices
|
||
@candidates = map @{$_->convex_points(PI*2/3)}, @simplified if !@candidates;
|
||
|
||
# retrieve the last start position for this object
|
||
my $obj_ptr = 0;
|
||
if (defined $self->layer) {
|
||
$obj_ptr = $self->layer->object->ptr;
|
||
if (defined $self->_seam_position->{$obj_ptr}) {
|
||
$last_pos = $self->_seam_position->{$obj_ptr};
|
||
}
|
||
}
|
||
|
||
my $point;
|
||
if ($self->config->seam_position eq 'nearest') {
|
||
@candidates = @$polygon if !@candidates;
|
||
$point = $last_pos->nearest_point(\@candidates);
|
||
if (!$loop->split_at_vertex($point)) {
|
||
# On 32-bit Linux, Clipper will change some point coordinates by 1 unit
|
||
# while performing simplify_polygons(), thus split_at_vertex() won't
|
||
# find them anymore.
|
||
$loop->split_at($point);
|
||
}
|
||
} elsif (@candidates) {
|
||
my @non_overhang = grep !$loop->has_overhang_point($_), @candidates;
|
||
@candidates = @non_overhang if @non_overhang;
|
||
$point = $last_pos->nearest_point(\@candidates);
|
||
if (!$loop->split_at_vertex($point)) {
|
||
$loop->split_at($point);
|
||
}
|
||
} else {
|
||
$point = $last_pos->projection_onto_polygon($polygon);
|
||
$loop->split_at($point);
|
||
}
|
||
$self->_seam_position->{$obj_ptr} = $point;
|
||
} elsif ($self->config->seam_position eq 'random') {
|
||
if ($loop->role == EXTRL_ROLE_CONTOUR_INTERNAL_PERIMETER) {
|
||
my $polygon = $loop->polygon;
|
||
my $centroid = $polygon->centroid;
|
||
$last_pos = Slic3r::Point->new($polygon->bounding_box->x_max, $centroid->y); #))
|
||
$last_pos->rotate(rand(2*PI), $centroid);
|
||
}
|
||
$loop->split_at($last_pos);
|
||
}
|
||
|
||
# clip the path to avoid the extruder to get exactly on the first point of the loop;
|
||
# if polyline was shorter than the clipping distance we'd get a null polyline, so
|
||
# we discard it in that case
|
||
my $clip_length = $self->enable_loop_clipping
|
||
? scale($self->config->get_at('nozzle_diameter', $self->writer->extruder->id)) * &Slic3r::LOOP_CLIPPING_LENGTH_OVER_NOZZLE_DIAMETER
|
||
: 0;
|
||
|
||
# get paths
|
||
my @paths = @{$loop->clip_end($clip_length)};
|
||
return '' if !@paths;
|
||
|
||
# apply the small perimeter speed
|
||
if ($paths[0]->is_perimeter && $loop->length <= &Slic3r::SMALL_PERIMETER_LENGTH) {
|
||
$speed //= $self->config->get_abs_value('small_perimeter_speed');
|
||
}
|
||
|
||
# extrude along the path
|
||
my $gcode = join '', map $self->_extrude_path($_, $description, $speed), @paths;
|
||
|
||
# reset acceleration
|
||
$gcode .= $self->writer->set_acceleration($self->config->default_acceleration);
|
||
|
||
$self->wipe->path($paths[0]->polyline->clone) if $self->wipe->enable; # TODO: don't limit wipe to last path
|
||
|
||
# make a little move inwards before leaving loop
|
||
if ($paths[-1]->role == EXTR_ROLE_EXTERNAL_PERIMETER && defined $self->layer && $self->config->perimeters > 1) {
|
||
my $last_path_polyline = $paths[-1]->polyline;
|
||
# detect angle between last and first segment
|
||
# the side depends on the original winding order of the polygon (left for contours, right for holes)
|
||
my @points = ($paths[0][1], $paths[-1][-2]);
|
||
@points = reverse @points if $was_clockwise;
|
||
my $angle = $paths[0]->first_point->ccw_angle(@points) / 3;
|
||
|
||
# turn left if contour, turn right if hole
|
||
$angle *= -1 if $was_clockwise;
|
||
|
||
# create the destination point along the first segment and rotate it
|
||
# we make sure we don't exceed the segment length because we don't know
|
||
# the rotation of the second segment so we might cross the object boundary
|
||
my $first_segment = Slic3r::Line->new(@{$paths[0]->polyline}[0,1]);
|
||
my $distance = min(scale($self->config->get_at('nozzle_diameter', $self->writer->extruder->id)), $first_segment->length);
|
||
my $point = $first_segment->point_at($distance);
|
||
$point->rotate($angle, $first_segment->a);
|
||
|
||
# generate the travel move
|
||
$gcode .= $self->writer->travel_to_xy($self->point_to_gcode($point), "move inwards before travel");
|
||
}
|
||
|
||
return $gcode;
|
||
}
|
||
|
||
sub extrude_path {
|
||
my ($self, $path, $description, $speed) = @_;
|
||
|
||
my $gcode = $self->_extrude_path($path, $description, $speed);
|
||
|
||
# reset acceleration
|
||
$gcode .= $self->writer->set_acceleration($self->config->default_acceleration);
|
||
|
||
return $gcode;
|
||
}
|
||
|
||
sub _extrude_path {
|
||
my ($self, $path, $description, $speed) = @_;
|
||
|
||
$path->simplify(&Slic3r::SCALED_RESOLUTION);
|
||
|
||
# go to first point of extrusion path
|
||
my $gcode = "";
|
||
{
|
||
my $first_point = $path->first_point;
|
||
$gcode .= $self->travel_to($first_point, $path->role, "move to first $description point")
|
||
if !defined $self->last_pos || !$self->last_pos->coincides_with($first_point);
|
||
}
|
||
|
||
# compensate retraction
|
||
$gcode .= $self->unretract;
|
||
|
||
# adjust acceleration
|
||
{
|
||
my $acceleration;
|
||
if ($self->config->first_layer_acceleration && $self->first_layer) {
|
||
$acceleration = $self->config->first_layer_acceleration;
|
||
} elsif ($self->config->perimeter_acceleration && $path->is_perimeter) {
|
||
$acceleration = $self->config->perimeter_acceleration;
|
||
} elsif ($self->config->bridge_acceleration && $path->is_bridge) {
|
||
$acceleration = $self->config->bridge_acceleration;
|
||
} elsif ($self->config->infill_acceleration && $path->is_infill) {
|
||
$acceleration = $self->config->infill_acceleration;
|
||
} else {
|
||
$acceleration = $self->config->default_acceleration;
|
||
}
|
||
$gcode .= $self->writer->set_acceleration($acceleration);
|
||
}
|
||
|
||
# calculate extrusion length per distance unit
|
||
my $e_per_mm = $self->writer->extruder->e_per_mm3 * $path->mm3_per_mm;
|
||
$e_per_mm = 0 if !$self->writer->extrusion_axis;
|
||
|
||
# set speed
|
||
$speed //= -1;
|
||
if ($speed == -1) {
|
||
if ($path->role == EXTR_ROLE_PERIMETER) {
|
||
$speed = $self->config->get_abs_value('perimeter_speed');
|
||
} elsif ($path->role == EXTR_ROLE_EXTERNAL_PERIMETER) {
|
||
$speed = $self->config->get_abs_value('external_perimeter_speed');
|
||
} elsif ($path->role == EXTR_ROLE_OVERHANG_PERIMETER || $path->role == EXTR_ROLE_BRIDGE) {
|
||
$speed = $self->config->get_abs_value('bridge_speed');
|
||
} elsif ($path->role == EXTR_ROLE_FILL) {
|
||
$speed = $self->config->get_abs_value('infill_speed');
|
||
} elsif ($path->role == EXTR_ROLE_SOLIDFILL) {
|
||
$speed = $self->config->get_abs_value('solid_infill_speed');
|
||
} elsif ($path->role == EXTR_ROLE_TOPSOLIDFILL) {
|
||
$speed = $self->config->get_abs_value('top_solid_infill_speed');
|
||
} elsif ($path->role == EXTR_ROLE_GAPFILL) {
|
||
$speed = $self->config->get_abs_value('gap_fill_speed');
|
||
} else {
|
||
die "Invalid speed";
|
||
}
|
||
}
|
||
if ($self->first_layer) {
|
||
$speed = $self->config->get_abs_value_over('first_layer_speed', $speed);
|
||
}
|
||
if ($self->volumetric_speed != 0) {
|
||
$speed ||= $self->volumetric_speed / $path->mm3_per_mm;
|
||
}
|
||
if ($self->config->max_volumetric_speed > 0) {
|
||
# Cap speed with max_volumetric_speed anyway (even if user is not using autospeed)
|
||
$speed = min(
|
||
$speed,
|
||
$self->config->max_volumetric_speed / $path->mm3_per_mm,
|
||
);
|
||
}
|
||
my $F = $speed * 60; # convert mm/sec to mm/min
|
||
|
||
# extrude arc or line
|
||
$gcode .= ";_BRIDGE_FAN_START\n" if $path->is_bridge && $self->enable_cooling_markers;
|
||
my $path_length = unscale $path->length;
|
||
{
|
||
my $extruder_offset = $self->config->get_at('extruder_offset', $self->writer->extruder->id);
|
||
$gcode .= $path->gcode($self->writer->extruder, $e_per_mm, $F,
|
||
$self->origin->x - $extruder_offset->x,
|
||
$self->origin->y - $extruder_offset->y, #-
|
||
$self->writer->extrusion_axis,
|
||
$self->config->gcode_comments ? " ; $description" : "");
|
||
|
||
if ($self->wipe->enable) {
|
||
$self->wipe->path($path->polyline->clone);
|
||
$self->wipe->path->reverse;
|
||
}
|
||
}
|
||
$gcode .= ";_BRIDGE_FAN_END\n" if $path->is_bridge && $self->enable_cooling_markers;
|
||
$self->last_pos($path->last_point);
|
||
|
||
if ($self->config->cooling) {
|
||
my $path_time = $path_length / $F * 60;
|
||
$self->elapsed_time($self->elapsed_time + $path_time);
|
||
}
|
||
|
||
return $gcode;
|
||
}
|
||
|
||
# This method accepts $point in print coordinates.
|
||
sub travel_to {
|
||
my ($self, $point, $role, $comment) = @_;
|
||
|
||
# Define the travel move as a line between current position and the taget point.
|
||
# This is expressed in print coordinates, so it will need to be translated by
|
||
# $self->origin in order to get G-code coordinates.
|
||
my $travel = Slic3r::Polyline->new($self->last_pos, $point);
|
||
|
||
# check whether a straight travel move would need retraction
|
||
my $needs_retraction = $self->needs_retraction($travel, $role);
|
||
|
||
# if a retraction would be needed, try to use avoid_crossing_perimeters to plan a
|
||
# multi-hop travel path inside the configuration space
|
||
if ($needs_retraction
|
||
&& $self->config->avoid_crossing_perimeters
|
||
&& !$self->avoid_crossing_perimeters->disable_once) {
|
||
$travel = $self->avoid_crossing_perimeters->travel_to($self, $point);
|
||
|
||
# check again whether the new travel path still needs a retraction
|
||
$needs_retraction = $self->needs_retraction($travel, $role);
|
||
}
|
||
|
||
# Re-allow avoid_crossing_perimeters for the next travel moves
|
||
$self->avoid_crossing_perimeters->disable_once(0);
|
||
$self->avoid_crossing_perimeters->use_external_mp_once(0);
|
||
|
||
# generate G-code for the travel move
|
||
my $gcode = "";
|
||
$gcode .= $self->retract if $needs_retraction;
|
||
|
||
# use G1 because we rely on paths being straight (G0 may make round paths)
|
||
$gcode .= $self->writer->travel_to_xy($self->point_to_gcode($_->b), $comment)
|
||
for @{$travel->lines};
|
||
|
||
return $gcode;
|
||
}
|
||
|
||
sub needs_retraction {
|
||
my ($self, $travel, $role) = @_;
|
||
|
||
if ($travel->length < scale $self->config->get_at('retract_before_travel', $self->writer->extruder->id)) {
|
||
# skip retraction if the move is shorter than the configured threshold
|
||
return 0;
|
||
}
|
||
|
||
if (defined $role && $role == EXTR_ROLE_SUPPORTMATERIAL && $self->layer->support_islands->contains_polyline($travel)) {
|
||
# skip retraction if this is a travel move inside a support material island
|
||
return 0;
|
||
}
|
||
|
||
if ($self->config->only_retract_when_crossing_perimeters && defined $self->layer) {
|
||
if ($self->config->fill_density > 0
|
||
&& $self->layer->any_internal_region_slice_contains_polyline($travel)) {
|
||
# skip retraction if travel is contained in an internal slice *and*
|
||
# internal infill is enabled (so that stringing is entirely not visible)
|
||
return 0;
|
||
} elsif ($self->layer->any_bottom_region_slice_contains_polyline($travel)
|
||
&& defined $self->layer->upper_layer
|
||
&& $self->layer->upper_layer->slices->contains_polyline($travel)
|
||
&& ($self->config->bottom_solid_layers >= 2 || $self->config->fill_density > 0)) {
|
||
# skip retraction if travel is contained in an *infilled* bottom slice
|
||
# but only if it's also covered by an *infilled* upper layer's slice
|
||
# so that it's not visible from above (a bottom surface might not have an
|
||
# upper slice in case of a thin membrane)
|
||
return 0;
|
||
}
|
||
}
|
||
|
||
# retract if only_retract_when_crossing_perimeters is disabled or doesn't apply
|
||
return 1;
|
||
}
|
||
|
||
sub retract {
|
||
my ($self, $toolchange) = @_;
|
||
|
||
return "" if !defined $self->writer->extruder;
|
||
|
||
my $gcode = "";
|
||
|
||
# wipe (if it's enabled for this extruder and we have a stored wipe path)
|
||
if ($self->config->get_at('wipe', $self->writer->extruder->id) && $self->wipe->path) {
|
||
$gcode .= $self->wipe->wipe($self, $toolchange);
|
||
}
|
||
|
||
# The parent class will decide whether we need to perform an actual retraction
|
||
# (the extruder might be already retracted fully or partially). We call these
|
||
# methods even if we performed wipe, since this will ensure the entire retraction
|
||
# length is honored in case wipe path was too short.p
|
||
$gcode .= $toolchange ? $self->writer->retract_for_toolchange : $self->writer->retract;
|
||
|
||
$gcode .= $self->writer->reset_e;
|
||
$gcode .= $self->writer->lift
|
||
if $self->writer->extruder->retract_length > 0 || $self->config->use_firmware_retraction;
|
||
|
||
return $gcode;
|
||
}
|
||
|
||
sub unretract {
|
||
my ($self) = @_;
|
||
|
||
my $gcode = "";
|
||
$gcode .= $self->writer->unlift;
|
||
$gcode .= $self->writer->unretract;
|
||
return $gcode;
|
||
}
|
||
|
||
# convert a model-space scaled point into G-code coordinates
|
||
sub point_to_gcode {
|
||
my ($self, $point) = @_;
|
||
|
||
my $extruder_offset = $self->config->get_at('extruder_offset', $self->writer->extruder->id);
|
||
return Slic3r::Pointf->new(
|
||
($point->x * &Slic3r::SCALING_FACTOR) + $self->origin->x - $extruder_offset->x,
|
||
($point->y * &Slic3r::SCALING_FACTOR) + $self->origin->y - $extruder_offset->y, #**
|
||
);
|
||
}
|
||
|
||
sub set_extruder {
|
||
my ($self, $extruder_id) = @_;
|
||
|
||
$self->placeholder_parser->set('current_extruder', $extruder_id);
|
||
return "" if !$self->writer->need_toolchange($extruder_id);
|
||
|
||
# if we are running a single-extruder setup, just set the extruder and return nothing
|
||
if (!$self->writer->multiple_extruders) {
|
||
return $self->writer->toolchange($extruder_id);
|
||
}
|
||
|
||
# prepend retraction on the current extruder
|
||
my $gcode = $self->retract(1);
|
||
|
||
# append custom toolchange G-code
|
||
if (defined $self->writer->extruder && $self->config->toolchange_gcode) {
|
||
my $pp = $self->placeholder_parser->clone;
|
||
$pp->set('previous_extruder' => $self->writer->extruder->id);
|
||
$pp->set('next_extruder' => $extruder_id);
|
||
$gcode .= sprintf "%s\n", $pp->process($self->config->toolchange_gcode);
|
||
}
|
||
|
||
# if ooze prevention is enabled, park current extruder in the nearest
|
||
# standby point and set it to the standby temperature
|
||
$gcode .= $self->ooze_prevention->pre_toolchange($self)
|
||
if $self->ooze_prevention->enable && defined $self->writer->extruder;
|
||
|
||
# append the toolchange command
|
||
$gcode .= $self->writer->toolchange($extruder_id);
|
||
|
||
# set the new extruder to the operating temperature
|
||
$gcode .= $self->ooze_prevention->post_toolchange($self)
|
||
if $self->ooze_prevention->enable;
|
||
|
||
return $gcode;
|
||
}
|
||
|
||
package Slic3r::GCode::OozePrevention;
|
||
use Moo;
|
||
|
||
use Slic3r::Geometry qw(scale);
|
||
|
||
has 'enable' => (is => 'rw', default => sub { 0 });
|
||
has 'standby_points' => (is => 'rw');
|
||
|
||
sub pre_toolchange {
|
||
my ($self, $gcodegen) = @_;
|
||
|
||
my $gcode = "";
|
||
|
||
# move to the nearest standby point
|
||
if (@{$self->standby_points}) {
|
||
# get current position in print coordinates
|
||
my $pos = Slic3r::Point->new_scale(@{$gcodegen->writer->get_position}[0,1]);
|
||
|
||
my $standby_point = Slic3r::Pointf->new_unscale(@{$pos->nearest_point($self->standby_points)});
|
||
# We don't call $gcodegen->travel_to() because we don't need retraction (it was already
|
||
# triggered by the caller) nor avoid_crossing_perimeters and also because the coordinates
|
||
# of the destination point must not be transformed by origin nor current extruder offset.
|
||
$gcode .= $gcodegen->writer->travel_to_xy($standby_point, 'move to standby position');
|
||
}
|
||
|
||
if ($gcodegen->config->standby_temperature_delta != 0) {
|
||
my $temp = defined $gcodegen->layer && $gcodegen->layer->id == 0
|
||
? $gcodegen->config->get_at('first_layer_temperature', $gcodegen->writer->extruder->id)
|
||
: $gcodegen->config->get_at('temperature', $gcodegen->writer->extruder->id);
|
||
# we assume that heating is always slower than cooling, so no need to block
|
||
$gcode .= $gcodegen->writer->set_temperature($temp + $gcodegen->config->standby_temperature_delta, 0);
|
||
}
|
||
|
||
return $gcode;
|
||
}
|
||
|
||
sub post_toolchange {
|
||
my ($self, $gcodegen) = @_;
|
||
|
||
my $gcode = "";
|
||
|
||
if ($gcodegen->config->standby_temperature_delta != 0) {
|
||
my $temp = defined $gcodegen->layer && $gcodegen->layer->id == 0
|
||
? $gcodegen->config->get_at('first_layer_temperature', $gcodegen->writer->extruder->id)
|
||
: $gcodegen->config->get_at('temperature', $gcodegen->writer->extruder->id);
|
||
$gcode .= $gcodegen->writer->set_temperature($temp, 1);
|
||
}
|
||
|
||
return $gcode;
|
||
}
|
||
|
||
package Slic3r::GCode::Wipe;
|
||
use Moo;
|
||
|
||
use Slic3r::Geometry qw(scale);
|
||
|
||
has 'enable' => (is => 'rw', default => sub { 0 });
|
||
has 'path' => (is => 'rw');
|
||
|
||
sub wipe {
|
||
my ($self, $gcodegen, $toolchange) = @_;
|
||
|
||
my $gcode = "";
|
||
|
||
# Reduce feedrate a bit; travel speed is often too high to move on existing material.
|
||
# Too fast = ripping of existing material; too slow = short wipe path, thus more blob.
|
||
my $wipe_speed = $gcodegen->writer->config->get('travel_speed') * 0.8;
|
||
|
||
# get the retraction length
|
||
my $length = $toolchange
|
||
? $gcodegen->writer->extruder->retract_length_toolchange
|
||
: $gcodegen->writer->extruder->retract_length;
|
||
|
||
if ($length) {
|
||
# Calculate how long we need to travel in order to consume the required
|
||
# amount of retraction. In other words, how far do we move in XY at $wipe_speed
|
||
# for the time needed to consume retract_length at retract_speed?
|
||
my $wipe_dist = scale($length / $gcodegen->writer->extruder->retract_speed * $wipe_speed);
|
||
|
||
# Take the stored wipe path and replace first point with the current actual position
|
||
# (they might be different, for example, in case of loop clipping).
|
||
my $wipe_path = Slic3r::Polyline->new(
|
||
$gcodegen->last_pos,
|
||
@{$self->path}[1..$#{$self->path}],
|
||
);
|
||
#
|
||
$wipe_path->clip_end($wipe_path->length - $wipe_dist);
|
||
|
||
# subdivide the retraction in segments
|
||
my $retracted = 0;
|
||
foreach my $line (@{$wipe_path->lines}) {
|
||
my $segment_length = $line->length;
|
||
# Reduce retraction length a bit to avoid effective retraction speed to be greater than the configured one
|
||
# due to rounding (TODO: test and/or better math for this)
|
||
my $dE = $length * ($segment_length / $wipe_dist) * 0.95;
|
||
$gcode .= $gcodegen->writer->set_speed($wipe_speed*60);
|
||
$gcode .= $gcodegen->writer->extrude_to_xy(
|
||
$gcodegen->point_to_gcode($line->b),
|
||
-$dE,
|
||
'wipe and retract' . ($gcodegen->enable_cooling_markers ? ';_WIPE' : ''),
|
||
);
|
||
$retracted += $dE;
|
||
}
|
||
$gcodegen->writer->extruder->set_retracted($gcodegen->writer->extruder->retracted + $retracted);
|
||
|
||
# prevent wiping again on same path
|
||
$self->path(undef);
|
||
}
|
||
|
||
return $gcode;
|
||
}
|
||
|
||
package Slic3r::GCode::AvoidCrossingPerimeters;
|
||
use Moo;
|
||
|
||
has '_external_mp' => (is => 'rw');
|
||
has '_layer_mp' => (is => 'rw');
|
||
has 'use_external_mp' => (is => 'rw', default => sub {0});
|
||
has 'use_external_mp_once' => (is => 'rw', default => sub {0}); # this flag triggers the use of the external configuration space for avoid_crossing_perimeters for the next travel move
|
||
|
||
# this flag disables avoid_crossing_perimeters just for the next travel move
|
||
# we enable it by default for the first travel move in print
|
||
has 'disable_once' => (is => 'rw', default => sub {1});
|
||
|
||
sub init_external_mp {
|
||
my ($self, $islands) = @_;
|
||
$self->_external_mp(Slic3r::MotionPlanner->new($islands));
|
||
}
|
||
|
||
sub init_layer_mp {
|
||
my ($self, $islands) = @_;
|
||
$self->_layer_mp(Slic3r::MotionPlanner->new($islands));
|
||
}
|
||
|
||
sub travel_to {
|
||
my ($self, $gcodegen, $point) = @_;
|
||
|
||
if ($self->use_external_mp || $self->use_external_mp_once) {
|
||
# get current origin set in $gcodegen
|
||
# (the one that will be used to translate the G-code coordinates by)
|
||
my $scaled_origin = Slic3r::Point->new_scale(@{$gcodegen->origin});
|
||
|
||
# represent last_pos in absolute G-code coordinates
|
||
my $last_pos = $gcodegen->last_pos->clone;
|
||
$last_pos->translate(@$scaled_origin);
|
||
|
||
# represent $point in absolute G-code coordinates
|
||
$point = $point->clone;
|
||
$point->translate(@$scaled_origin);
|
||
# calculate path
|
||
my $travel = $self->_external_mp->shortest_path($last_pos, $point);
|
||
|
||
# translate the path back into the shifted coordinate system that $gcodegen
|
||
# is currently using for writing coordinates
|
||
$travel->translate(@{$scaled_origin->negative});
|
||
return $travel;
|
||
} else {
|
||
return $self->_layer_mp->shortest_path($gcodegen->last_pos, $point);
|
||
}
|
||
}
|
||
|
||
1;
|