Slic3r/lib/Slic3r/GCode.pm

774 lines
30 KiB
Perl

package Slic3r::GCode;
use Moo;
use List::Util qw(min first);
use Slic3r::ExtrusionPath ':roles';
use Slic3r::Flow ':roles';
use Slic3r::Geometry qw(epsilon scale unscale scaled_epsilon points_coincide PI X Y B);
use Slic3r::Geometry::Clipper qw(union_ex);
use Slic3r::Surface ':types';
has 'print_config' => (is => 'ro', default => sub { Slic3r::Config::Print->new });
has 'placeholder_parser' => (is => 'rw', default => sub { Slic3r::GCode::PlaceholderParser->new });
has 'standby_points' => (is => 'rw');
has 'enable_loop_clipping' => (is => 'rw', default => sub {1});
has 'enable_wipe' => (is => 'rw', default => sub {0}); # at least one extruder has wipe enabled
has 'layer_count' => (is => 'ro', required => 1 );
has '_layer_index' => (is => 'rw', default => sub {-1}); # just a counter
has 'layer' => (is => 'rw');
has 'region' => (is => 'rw');
has '_layer_islands' => (is => 'rw');
has '_upper_layer_islands' => (is => 'rw');
has '_layer_overhangs' => (is => 'ro', default => sub { Slic3r::ExPolygon::Collection->new });
has 'shift_x' => (is => 'rw', default => sub {0} );
has 'shift_y' => (is => 'rw', default => sub {0} );
has 'z' => (is => 'rw');
has 'speed' => (is => 'rw');
has '_extrusion_axis' => (is => 'rw');
has '_retract_lift' => (is => 'rw');
has 'extruders' => (is => 'ro', default => sub {{}});
has 'extruder' => (is => 'rw');
has 'speeds' => (is => 'lazy'); # mm/min
has 'external_mp' => (is => 'rw');
has 'layer_mp' => (is => 'rw');
has 'new_object' => (is => 'rw', default => sub {0});
has 'straight_once' => (is => 'rw', default => sub {1});
has 'elapsed_time' => (is => 'rw', default => sub {0} ); # seconds
has 'lifted' => (is => 'rw', default => sub {0} );
has 'last_pos' => (is => 'rw', default => sub { Slic3r::Point->new(0,0) } );
has 'last_speed' => (is => 'rw', default => sub {""});
has 'last_f' => (is => 'rw', default => sub {""});
has 'last_fan_speed' => (is => 'rw', default => sub {0});
has 'wipe_path' => (is => 'rw');
sub BUILD {
my ($self) = @_;
$self->_extrusion_axis($self->print_config->get_extrusion_axis);
$self->_retract_lift($self->print_config->retract_lift->[0]);
}
sub set_extruders {
my ($self, $extruder_ids) = @_;
foreach my $i (@$extruder_ids) {
$self->extruders->{$i} = my $e = Slic3r::Extruder->new_from_config($self->print_config, $i);
$self->enable_wipe(1) if $e->wipe;
}
}
sub _build_speeds {
my $self = shift;
return {
map { $_ => 60 * $self->print_config->get_value("${_}_speed") }
qw(travel perimeter small_perimeter external_perimeter infill
solid_infill top_solid_infill bridge gap_fill retract),
};
}
# assign speeds to roles
my %role_speeds = (
&EXTR_ROLE_PERIMETER => 'perimeter',
&EXTR_ROLE_EXTERNAL_PERIMETER => 'external_perimeter',
&EXTR_ROLE_OVERHANG_PERIMETER => 'bridge',
&EXTR_ROLE_CONTOUR_INTERNAL_PERIMETER => 'perimeter',
&EXTR_ROLE_FILL => 'infill',
&EXTR_ROLE_SOLIDFILL => 'solid_infill',
&EXTR_ROLE_TOPSOLIDFILL => 'top_solid_infill',
&EXTR_ROLE_BRIDGE => 'bridge',
&EXTR_ROLE_INTERNALBRIDGE => 'bridge',
&EXTR_ROLE_SKIRT => 'perimeter',
&EXTR_ROLE_GAPFILL => 'gap_fill',
);
sub multiple_extruders {
my $self = shift;
return (keys %{$self->extruders}) > 1;
}
sub set_shift {
my ($self, @shift) = @_;
# if shift increases (goes towards right), last_pos decreases because it goes towards left
my @translate = (
scale ($self->shift_x - $shift[X]),
scale ($self->shift_y - $shift[Y]),
);
$self->last_pos->translate(@translate);
$self->wipe_path->translate(@translate) if $self->wipe_path;
$self->shift_x($shift[X]);
$self->shift_y($shift[Y]);
}
sub change_layer {
my ($self, $layer) = @_;
$self->layer($layer);
$self->_layer_index($self->_layer_index + 1);
# avoid computing islands and overhangs if they're not needed
$self->_layer_islands($layer->islands);
$self->_upper_layer_islands($layer->upper_layer ? $layer->upper_layer->islands : []);
$self->_layer_overhangs->clear;
if ($layer->id > 0 && ($self->print_config->overhangs || $self->print_config->start_perimeters_at_non_overhang)) {
$self->_layer_overhangs->append(
# clone ExPolygons because they come from Surface objects but will be used outside here
map $_->expolygon, map @{$_->slices->filter_by_type(S_TYPE_BOTTOM)}, @{$layer->regions}
);
}
if ($self->print_config->avoid_crossing_perimeters) {
$self->layer_mp(Slic3r::GCode::MotionPlanner->new(
islands => union_ex([ map @$_, @{$layer->slices} ], 1),
));
}
my $gcode = "";
if ($self->print_config->gcode_flavor =~ /^(?:makerware|sailfish)$/) {
$gcode .= sprintf "M73 P%s%s\n",
int(99 * ($self->_layer_index / ($self->layer_count - 1))),
($self->print_config->gcode_comments ? ' ; update progress' : '');
}
if ($self->print_config->first_layer_acceleration) {
if ($layer->id == 0) {
$gcode .= $self->set_acceleration($self->print_config->first_layer_acceleration);
} elsif ($layer->id == 1) {
$gcode .= $self->set_acceleration($self->print_config->default_acceleration);
}
}
$gcode .= $self->move_z($layer->print_z);
return $gcode;
}
# this method accepts Z in unscaled coordinates
sub move_z {
my ($self, $z, $comment) = @_;
my $gcode = "";
$z += $self->print_config->z_offset;
my $current_z = $self->z;
my $nominal_z = defined $current_z ? ($current_z - $self->lifted) : undef;
if (!defined $current_z || $z > $current_z || $z < $nominal_z) {
# we're moving above the current actual Z (so above the lift height of the current
# layer if any) or below the current nominal layer
# in both cases, we're going to the nominal Z of the next layer
$self->lifted(0);
if ($self->extruder->retract_layer_change) {
# this retraction may alter $self->z
$gcode .= $self->retract(move_z => $z);
$current_z = $self->z; # update current z in case retract() changed it
$nominal_z = defined $current_z ? ($current_z - $self->lifted) : undef;
}
$self->speed('travel');
$gcode .= $self->G0(undef, $z, 0, $comment || ('move to next layer (' . $self->layer->id . ')'))
if !defined $current_z || abs($z - $nominal_z) > epsilon;
} elsif ($z < $current_z) {
# we're moving above the current nominal layer height and below the current actual one.
# we're basically advancing to next layer, whose nominal Z is still lower than the previous
# layer Z with lift.
$self->lifted($current_z - $z);
}
return $gcode;
}
sub extrude {
my $self = shift;
$_[0]->isa('Slic3r::ExtrusionLoop')
? $self->extrude_loop(@_)
: $self->extrude_path(@_);
}
sub extrude_loop {
my ($self, $loop, $description) = @_;
# 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;
my $polygon = $loop->polygon;
# find candidate starting points
# start looking for concave vertices not being overhangs
my @concave = ();
if ($self->print_config->start_perimeters_at_concave_points) {
@concave = $polygon->concave_points;
}
my @candidates = ();
if ($self->print_config->start_perimeters_at_non_overhang) {
@candidates = grep !$self->_layer_overhangs->contains_point($_), @concave;
}
if (!@candidates) {
# if none, look for any concave vertex
@candidates = @concave;
if (!@candidates) {
# if none, look for any non-overhang vertex
if ($self->print_config->start_perimeters_at_non_overhang) {
@candidates = grep !$self->_layer_overhangs->contains_point($_), @$polygon;
}
if (!@candidates) {
# if none, all points are valid candidates
@candidates = @{$polygon};
}
}
}
# 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->print_config->randomize_start && $loop->role == EXTR_ROLE_CONTOUR_INTERNAL_PERIMETER) {
$last_pos = Slic3r::Point->new(scale $self->print_config->print_center->[X], scale $self->print_config->bed_size->[Y]);
$last_pos->rotate(rand(2*PI), $self->print_config->print_center);
}
# split the loop at the starting point and make a path
my $start_at = $last_pos->nearest_point(\@candidates);
my $extrusion_path = $loop->split_at($start_at);
# 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
$extrusion_path->clip_end(scale($self->extruder->nozzle_diameter) * &Slic3r::LOOP_CLIPPING_LENGTH_OVER_NOZZLE_DIAMETER)
if $self->enable_loop_clipping;
return '' if !@{$extrusion_path->polyline};
my @paths = ();
# detect overhanging/bridging perimeters
if ($self->layer->print->config->overhangs && $extrusion_path->is_perimeter && $self->_layer_overhangs->count > 0) {
# get non-overhang paths by subtracting overhangs from the loop
push @paths,
map $_->clone,
@{$extrusion_path->subtract_expolygons(Slic3r::ExPolygon::Collection->new || $self->_layer_overhangs)};
if (@paths == 1) {
if ($paths[0]->polyline->length != $extrusion_path->polyline->length) {
use XXX; YYY (
$extrusion_path->polyline->wkt,
$paths[0]->polyline->wkt,
);
use Slic3r::SVG;
Slic3r::SVG::output("path.svg",
red_polylines => [ $extrusion_path->polyline ],
polylines => [ $paths[0]->polyline ],
);
exit;
}
}
if (0) {
# get overhang paths by intersecting overhangs with the loop
foreach my $path (@{$extrusion_path->intersect_expolygons($self->_layer_overhangs)}) {
$path = $path->clone;
$path->role(EXTR_ROLE_OVERHANG_PERIMETER);
$path->mm3_per_mm($self->region->flow(FLOW_ROLE_PERIMETER, -1, 1)->mm3_per_mm(-1));
push @paths, $path;
}
}
# reapply the nearest point search for starting point
# (clone because the collection gets DESTROY'ed)
my $collection = Slic3r::ExtrusionPath::Collection->new(@paths);
#@paths = map $_->clone, @{$collection->chained_path_from($start_at, 1)};
} else {
push @paths, $extrusion_path;
}
# apply the small perimeter speed
my %params = ();
if ($extrusion_path->is_perimeter && abs($extrusion_path->length) <= &Slic3r::SMALL_PERIMETER_LENGTH) {
$params{speed} = 'small_perimeter';
}
# extrude along the path
my $gcode = join '', map $self->extrude_path($_, $description, %params), @paths;
$self->wipe_path($extrusion_path->polyline->clone) if $self->enable_wipe;
# make a little move inwards before leaving loop
if ($loop->role == EXTR_ROLE_EXTERNAL_PERIMETER && defined $self->layer && $self->region->config->perimeters > 1) {
# 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 = $was_clockwise ? (-2, 1) : (1, -2);
my $angle = Slic3r::Geometry::angle3points(@{$extrusion_path->polyline}[0, @points]) / 3;
$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 $first_segment = Slic3r::Line->new(@{$extrusion_path->polyline}[0,1]);
my $distance = min(scale($self->extruder->nozzle_diameter), $first_segment->length);
my $point = $first_segment->point_at($distance);
$point->rotate($angle, $extrusion_path->first_point);
# generate the travel move
$gcode .= $self->travel_to($point, $loop->role, "move inwards before travel");
}
return $gcode;
}
sub extrude_path {
my ($self, $path, $description, %params) = @_;
$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->print_config->first_layer_acceleration || $self->layer->id != 0) {
if ($self->print_config->perimeter_acceleration && $path->is_perimeter) {
$acceleration = $self->print_config->perimeter_acceleration;
} elsif ($self->print_config->infill_acceleration && $path->is_fill) {
$acceleration = $self->print_config->infill_acceleration;
} elsif ($self->print_config->infill_acceleration && $path->is_bridge) {
$acceleration = $self->print_config->bridge_acceleration;
}
$gcode .= $self->set_acceleration($acceleration) if $acceleration;
}
# calculate extrusion length per distance unit
my $e = $self->extruder->e_per_mm3 * $path->mm3_per_mm;
$e = 0 if !$self->_extrusion_axis;
# set speed
$self->speed( $params{speed} || $role_speeds{$path->role} || die "Unknown role: " . $path->role );
my $F = $self->speeds->{$self->speed} // $self->speed;
if ($self->layer->id == 0) {
$F = $self->print_config->get_abs_value_over('first_layer_speed', $F/60) * 60;
}
# extrude arc or line
$gcode .= ";_BRIDGE_FAN_START\n" if $path->is_bridge;
my $path_length = 0;
{
my $local_F = $F;
foreach my $line (@{$path->lines}) {
$path_length += my $line_length = unscale $line->length;
# calculate extrusion length for this line
my $E = 0;
$E = $self->extruder->extrude($e * $line_length) if $e;
# compose G-code line
my $point = $line->b;
$gcode .= sprintf "G1 X%.3f Y%.3f",
($point->x * &Slic3r::SCALING_FACTOR) + $self->shift_x - $self->extruder->extruder_offset->[X],
($point->y * &Slic3r::SCALING_FACTOR) + $self->shift_y - $self->extruder->extruder_offset->[Y]; #**
$gcode .= sprintf(" %s%.5f", $self->_extrusion_axis, $E)
if $E;
$gcode .= " F$local_F"
if $local_F;
$gcode .= " ; $description"
if $self->print_config->gcode_comments;
$gcode .= "\n";
# only include F in the first line
$local_F = 0;
}
if ($self->enable_wipe) {
$self->wipe_path($path->polyline->clone);
$self->wipe_path->reverse;
}
}
$gcode .= ";_BRIDGE_FAN_END\n" if $path->is_bridge;
$self->last_pos($path->last_point);
if ($self->print_config->cooling) {
my $path_time = $path_length / $F * 60;
$self->elapsed_time($self->elapsed_time + $path_time);
}
# reset acceleration
$gcode .= $self->set_acceleration($self->print_config->default_acceleration)
if $acceleration && $self->print_config->default_acceleration;
return $gcode;
}
sub travel_to {
my ($self, $point, $role, $comment) = @_;
my $gcode = "";
my $travel = Slic3r::Line->new($self->last_pos, $point);
# move travel back to original layer coordinates for the island check.
# note that we're only considering the current object's islands, while we should
# build a more complete configuration space
$travel->translate(-$self->shift_x, -$self->shift_y);
# skip retraction if the travel move is contained in an island in the current layer
# *and* in an island in the upper layer (so that the ooze will not be visible)
if ($travel->length < scale $self->extruder->retract_before_travel
|| ($self->print_config->only_retract_when_crossing_perimeters
&& (first { $_->contains_line($travel) } @{$self->_upper_layer_islands})
&& (first { $_->contains_line($travel) } @{$self->_layer_islands}))
|| (defined $role && $role == EXTR_ROLE_SUPPORTMATERIAL && (first { $_->contains_line($travel) } @{$self->layer->support_islands}))
) {
$self->straight_once(0);
$self->speed('travel');
$gcode .= $self->G0($point, undef, 0, $comment || "");
} elsif (!$self->print_config->avoid_crossing_perimeters || $self->straight_once) {
$self->straight_once(0);
$gcode .= $self->retract;
$self->speed('travel');
$gcode .= $self->G0($point, undef, 0, $comment || "");
} else {
if ($self->new_object) {
$self->new_object(0);
# represent $point in G-code coordinates
$point = $point->clone;
my @shift = ($self->shift_x, $self->shift_y);
$point->translate(map scale $_, @shift);
# calculate path (external_mp uses G-code coordinates so we temporary need a null shift)
$self->set_shift(0,0);
$gcode .= $self->_plan($self->external_mp, $point, $comment);
$self->set_shift(@shift);
} else {
$gcode .= $self->_plan($self->layer_mp, $point, $comment);
}
}
return $gcode;
}
sub _plan {
my ($self, $mp, $point, $comment) = @_;
my $gcode = "";
my @travel = @{$mp->shortest_path($self->last_pos, $point)->lines};
# if the path is not contained in a single island we need to retract
my $need_retract = !$self->print_config->only_retract_when_crossing_perimeters;
if (!$need_retract) {
$need_retract = 1;
foreach my $island (@{$self->_upper_layer_islands}) {
# discard the island if at any line is not enclosed in it
next if first { !$island->contains_line($_) } @travel;
# okay, this island encloses the full travel path
$need_retract = 0;
last;
}
}
# do the retract (the travel_to argument is broken)
$gcode .= $self->retract if $need_retract;
# append the actual path and return
$self->speed('travel');
# use G1 because we rely on paths being straight (G0 may make round paths)
$gcode .= join '', map $self->G1($_->b, undef, 0, $comment || ""), @travel;
return $gcode;
}
sub retract {
my ($self, %params) = @_;
# get the retraction length and abort if none
my ($length, $restart_extra, $comment) = $params{toolchange}
? ($self->extruder->retract_length_toolchange, $self->extruder->retract_restart_extra_toolchange, "retract for tool change")
: ($self->extruder->retract_length, $self->extruder->retract_restart_extra, "retract");
# if we already retracted, reduce the required amount of retraction
$length -= $self->extruder->retracted;
return "" unless $length > 0;
my $gcode = "";
# wipe
my $wipe_path;
if ($self->extruder->wipe && $self->wipe_path) {
my @points = @{$self->wipe_path};
$wipe_path = Slic3r::Polyline->new($self->last_pos, @{$self->wipe_path}[1..$#{$self->wipe_path}]);
$wipe_path->clip_end($wipe_path->length - $self->extruder->scaled_wipe_distance($self->print_config->travel_speed));
}
# prepare moves
my $retract = [undef, undef, -$length, $comment];
my $lift = ($self->_retract_lift == 0 || defined $params{move_z}) && !$self->lifted
? undef
: [undef, $self->z + $self->_retract_lift, 0, 'lift plate during travel'];
# check that we have a positive wipe length
if ($wipe_path) {
$self->speed($self->speeds->{travel} * 0.8);
# subdivide the retraction
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
my $e = $retract->[2] * ($segment_length / $self->extruder->scaled_wipe_distance($self->print_config->travel_speed)) * 0.95;
$retracted += $e;
$gcode .= $self->G1($line->b, undef, $e, $retract->[3] . ";_WIPE");
}
if ($retracted > $retract->[2]) {
# if we retracted less than we had to, retract the remainder
# TODO: add regression test
$self->speed('retract');
$gcode .= $self->G1(undef, undef, $retract->[2] - $retracted, $comment);
}
} elsif ($self->print_config->use_firmware_retraction) {
$gcode .= "G10 ; retract\n";
} else {
$self->speed('retract');
$gcode .= $self->G1(@$retract);
}
if (!$self->lifted) {
$self->speed('travel');
if (defined $params{move_z} && $self->_retract_lift > 0) {
my $travel = [undef, $params{move_z} + $self->_retract_lift, 0, 'move to next layer (' . $self->layer->id . ') and lift'];
$gcode .= $self->G0(@$travel);
$self->lifted($self->_retract_lift);
} elsif ($lift) {
$gcode .= $self->G1(@$lift);
}
}
$self->extruder->retracted($self->extruder->retracted + $length);
$self->extruder->restart_extra($restart_extra);
$self->lifted($self->_retract_lift) if $lift;
# reset extrusion distance during retracts
# this makes sure we leave sufficient precision in the firmware
$gcode .= $self->reset_e;
$gcode .= "M103 ; extruder off\n" if $self->print_config->gcode_flavor eq 'makerware';
return $gcode;
}
sub unretract {
my ($self) = @_;
my $gcode = "";
$gcode .= "M101 ; extruder on\n" if $self->print_config->gcode_flavor eq 'makerware';
if ($self->lifted) {
$self->speed('travel');
$gcode .= $self->G0(undef, $self->z - $self->lifted, 0, 'restore layer Z');
$self->lifted(0);
}
my $to_unretract = $self->extruder->retracted + $self->extruder->restart_extra;
if ($to_unretract) {
$self->speed('retract');
if ($self->print_config->use_firmware_retraction) {
$gcode .= "G11 ; unretract\n";
} elsif ($self->_extrusion_axis) {
# use G1 instead of G0 because G0 will blend the restart with the previous travel move
$gcode .= sprintf "G1 %s%.5f F%.3f",
$self->_extrusion_axis,
$self->extruder->extrude($to_unretract),
$self->extruder->retract_speed_mm_min;
$gcode .= " ; compensate retraction" if $self->print_config->gcode_comments;
$gcode .= "\n";
}
$self->extruder->retracted(0);
$self->extruder->restart_extra(0);
}
return $gcode;
}
sub reset_e {
my ($self) = @_;
return "" if $self->print_config->gcode_flavor =~ /^(?:mach3|makerware|sailfish)$/;
$self->extruder->E(0) if $self->extruder;
return sprintf "G92 %s0%s\n", $self->_extrusion_axis, ($self->print_config->gcode_comments ? ' ; reset extrusion distance' : '')
if $self->_extrusion_axis && !$self->print_config->use_relative_e_distances;
}
sub set_acceleration {
my ($self, $acceleration) = @_;
return "" if !$acceleration;
return sprintf "M204 S%s%s\n",
$acceleration, ($self->print_config->gcode_comments ? ' ; adjust acceleration' : '');
}
sub G0 {
my $self = shift;
return $self->G1(@_) if !($self->print_config->g0 || $self->print_config->gcode_flavor eq 'mach3');
return $self->_G0_G1("G0", @_);
}
sub G1 {
my $self = shift;
return $self->_G0_G1("G1", @_);
}
sub _G0_G1 {
my ($self, $gcode, $point, $z, $e, $comment) = @_;
if ($point) {
$gcode .= sprintf " X%.3f Y%.3f",
($point->x * &Slic3r::SCALING_FACTOR) + $self->shift_x - $self->extruder->extruder_offset->[X],
($point->y * &Slic3r::SCALING_FACTOR) + $self->shift_y - $self->extruder->extruder_offset->[Y]; #**
$self->last_pos($point->clone);
}
if (defined $z && (!defined $self->z || $z != $self->z)) {
$self->z($z);
$gcode .= sprintf " Z%.3f", $z;
}
return $self->_Gx($gcode, $e, $comment);
}
sub _Gx {
my ($self, $gcode, $e, $comment) = @_;
my $F = $self->speed eq 'retract'
? ($self->extruder->retract_speed_mm_min)
: $self->speeds->{$self->speed} // $self->speed;
$self->last_speed($self->speed);
$self->last_f($F);
$gcode .= sprintf " F%.3f", $F;
# output extrusion distance
if ($e && $self->_extrusion_axis) {
$gcode .= sprintf " %s%.5f", $self->_extrusion_axis, $self->extruder->extrude($e);
}
$gcode .= " ; $comment" if $comment && $self->print_config->gcode_comments;
return "$gcode\n";
}
sub set_extruder {
my ($self, $extruder_id) = @_;
# return nothing if this extruder was already selected
return "" if (defined $self->extruder) && ($self->extruder->id == $extruder_id);
# if we are running a single-extruder setup, just set the extruder and return nothing
if (!$self->multiple_extruders) {
$self->extruder($self->extruders->{$extruder_id});
return "";
}
# trigger retraction on the current extruder (if any)
my $gcode = "";
$gcode .= $self->retract(toolchange => 1) if defined $self->extruder;
# append custom toolchange G-code
if (defined $self->extruder && $self->print_config->toolchange_gcode) {
$gcode .= sprintf "%s\n", $self->placeholder_parser->process($self->print_config->toolchange_gcode, {
previous_extruder => $self->extruder->id,
next_extruder => $extruder_id,
});
}
# set the current extruder to the standby temperature
if ($self->standby_points && defined $self->extruder) {
# move to the nearest standby point
$gcode .= $self->travel_to($self->last_pos->nearest_point($self->standby_points));
my $temp = defined $self->layer && $self->layer->id == 0
? $self->extruder->first_layer_temperature
: $self->extruder->temperature;
# we assume that heating is always slower than cooling, so no need to block
$gcode .= $self->set_temperature($temp + $self->print_config->standby_temperature_delta, 0);
}
# set the new extruder
$self->extruder($self->extruders->{$extruder_id});
$gcode .= sprintf "%s%d%s\n",
($self->print_config->gcode_flavor eq 'makerware'
? 'M135 T'
: $self->print_config->gcode_flavor eq 'sailfish'
? 'M108 T'
: 'T'),
$extruder_id,
($self->print_config->gcode_comments ? ' ; change extruder' : '');
$gcode .= $self->reset_e;
# set the new extruder to the operating temperature
if ($self->print_config->ooze_prevention) {
my $temp = defined $self->layer && $self->layer->id == 0
? $self->extruder->first_layer_temperature
: $self->extruder->temperature;
$gcode .= $self->set_temperature($temp, 1);
}
return $gcode;
}
sub set_fan {
my ($self, $speed, $dont_save) = @_;
if ($self->last_fan_speed != $speed || $dont_save) {
$self->last_fan_speed($speed) if !$dont_save;
if ($speed == 0) {
my $code = $self->print_config->gcode_flavor eq 'teacup'
? 'M106 S0'
: $self->print_config->gcode_flavor =~ /^(?:makerware|sailfish)$/
? 'M127'
: 'M107';
return sprintf "$code%s\n", ($self->print_config->gcode_comments ? ' ; disable fan' : '');
} else {
if ($self->print_config->gcode_flavor =~ /^(?:makerware|sailfish)$/) {
return sprintf "M126%s\n", ($self->print_config->gcode_comments ? ' ; enable fan' : '');
} else {
return sprintf "M106 %s%d%s\n", ($self->print_config->gcode_flavor eq 'mach3' ? 'P' : 'S'),
(255 * $speed / 100), ($self->print_config->gcode_comments ? ' ; enable fan' : '');
}
}
}
return "";
}
sub set_temperature {
my ($self, $temperature, $wait, $tool) = @_;
return "" if $wait && $self->print_config->gcode_flavor =~ /^(?:makerware|sailfish)$/;
my ($code, $comment) = ($wait && $self->print_config->gcode_flavor ne 'teacup')
? ('M109', 'wait for temperature to be reached')
: ('M104', 'set temperature');
my $gcode = sprintf "$code %s%d %s; $comment\n",
($self->print_config->gcode_flavor eq 'mach3' ? 'P' : 'S'), $temperature,
(defined $tool && ($self->multiple_extruders || $self->print_config->gcode_flavor =~ /^(?:makerware|sailfish)$/)) ? "T$tool " : "";
$gcode .= "M116 ; wait for temperature to be reached\n"
if $self->print_config->gcode_flavor eq 'teacup' && $wait;
return $gcode;
}
sub set_bed_temperature {
my ($self, $temperature, $wait) = @_;
my ($code, $comment) = ($wait && $self->print_config->gcode_flavor ne 'teacup')
? (($self->print_config->gcode_flavor =~ /^(?:makerware|sailfish)$/ ? 'M109' : 'M190'), 'wait for bed temperature to be reached')
: ('M140', 'set bed temperature');
my $gcode = sprintf "$code %s%d ; $comment\n",
($self->print_config->gcode_flavor eq 'mach3' ? 'P' : 'S'), $temperature;
$gcode .= "M116 ; wait for bed temperature to be reached\n"
if $self->print_config->gcode_flavor eq 'teacup' && $wait;
return $gcode;
}
1;