580 lines
23 KiB
Perl
580 lines
23 KiB
Perl
package Slic3r::Print;
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use Moo;
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use File::Basename qw(basename fileparse);
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use Math::ConvexHull 1.0.4 qw(convex_hull);
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use Slic3r::Geometry qw(X Y Z X1 Y1 X2 Y2 PI scale unscale move_points);
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use Slic3r::Geometry::Clipper qw(diff_ex union_ex offset JT_ROUND);
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use Time::HiRes qw(gettimeofday tv_interval);
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has 'objects' => (is => 'rw', default => sub {[]});
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has 'copies' => (is => 'rw', default => sub {[]}); # obj_idx => [copies...]
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has 'total_extrusion_length' => (is => 'rw');
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has 'processing_time' => (is => 'rw', required => 0);
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# ordered collection of extrusion paths to build skirt loops
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has 'skirt' => (
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is => 'rw',
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#isa => 'ArrayRef[Slic3r::ExtrusionLoop]',
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default => sub { [] },
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);
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sub add_object_from_file {
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my $self = shift;
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my ($input_file) = @_;
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my $object;
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if ($input_file =~ /\.stl$/i) {
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my $mesh = Slic3r::Format::STL->read_file($input_file);
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$mesh->check_manifoldness;
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$object = $self->add_object_from_mesh($mesh);
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} elsif ( $input_file =~ /\.amf(\.xml)?$/i) {
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my ($materials, $meshes_by_material) = Slic3r::Format::AMF->read_file($input_file);
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$_->check_manifoldness for values %$meshes_by_material;
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$object = $self->add_object_from_mesh($meshes_by_material->{_} || +(values %$meshes_by_material)[0]);
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} else {
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die "Input file must have .stl or .amf(.xml) extension\n";
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}
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$object->input_file($input_file);
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return $object;
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}
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sub add_object_from_mesh {
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my $self = shift;
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my ($mesh) = @_;
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$mesh->rotate($Slic3r::rotate);
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$mesh->scale($Slic3r::scale / $Slic3r::scaling_factor);
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$mesh->align_to_origin;
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# initialize print object
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my @size = $mesh->size;
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my $object = Slic3r::Print::Object->new(
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mesh => $mesh,
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x_length => $size[X],
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y_length => $size[Y],
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);
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push @{$self->objects}, $object;
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push @{$self->copies}, [[0, 0]];
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return $object;
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}
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sub cleanup {
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my $self = shift;
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$_->cleanup for @{$self->objects};
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@{$self->skirt} = ();
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$self->total_extrusion_length(0);
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$self->processing_time(0);
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}
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sub layer_count {
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my $self = shift;
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my $count = 0;
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foreach my $object (@{$self->objects}) {
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$count = @{$object->layers} if @{$object->layers} > $count;
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}
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return $count;
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}
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sub duplicate {
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my $self = shift;
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if ($Slic3r::duplicate_grid->[X] > 1 || $Slic3r::duplicate_grid->[Y] > 1) {
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if (@{$self->objects} > 1) {
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die "Grid duplication is not supported with multiple objects\n";
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}
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my $object = $self->objects->[0];
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# generate offsets for copies
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my $dist = scale $Slic3r::duplicate_distance;
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@{$self->copies->[0]} = ();
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for my $x_copy (1..$Slic3r::duplicate_grid->[X]) {
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for my $y_copy (1..$Slic3r::duplicate_grid->[Y]) {
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push @{$self->copies->[0]}, [
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($object->x_length + $dist) * ($x_copy-1),
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($object->y_length + $dist) * ($y_copy-1),
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];
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}
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}
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} elsif ($Slic3r::duplicate > 1) {
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foreach my $copies (@{$self->copies}) {
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@$copies = map [0,0], 1..$Slic3r::duplicate;
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}
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$self->arrange_objects;
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}
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}
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sub arrange_objects {
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my $self = shift;
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my $total_parts = scalar map @$_, @{$self->copies};
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my $partx = my $party = 0;
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foreach my $object (@{$self->objects}) {
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$partx = $object->x_length if $object->x_length > $partx;
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$party = $object->y_length if $object->y_length > $party;
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}
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my @positions = Slic3r::Geometry::arrange
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($total_parts, $partx, $party, (map scale $_, @$Slic3r::bed_size), scale $Slic3r::duplicate_distance);
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for my $obj_idx (0..$#{$self->objects}) {
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@{$self->copies->[$obj_idx]} = splice @positions, 0, scalar @{$self->copies->[$obj_idx]};
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}
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}
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sub bounding_box {
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my $self = shift;
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my @points = ();
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foreach my $obj_idx (0 .. $#{$self->objects}) {
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my $object = $self->objects->[$obj_idx];
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foreach my $copy (@{$self->copies->[$obj_idx]}) {
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push @points,
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[ $copy->[X], $copy->[Y] ],
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[ $copy->[X] + $object->x_length, $copy->[Y] ],
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[ $copy->[X] + $object->x_length, $copy->[Y] + $object->y_length ],
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[ $copy->[X], $copy->[Y] + $object->y_length ];
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}
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}
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return Slic3r::Geometry::bounding_box(\@points);
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}
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sub size {
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my $self = shift;
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my @bb = $self->bounding_box;
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return [ $bb[X2] - $bb[X1], $bb[Y2] - $bb[Y1] ];
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}
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sub export_gcode {
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my $self = shift;
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my %params = @_;
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my $status_cb = $params{status_cb} || sub {};
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my $t0 = [gettimeofday];
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# skein the STL into layers
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# each layer has surfaces with holes
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$status_cb->(5, "Processing input file");
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$status_cb->(10, "Processing triangulated mesh");
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$_->slice for @{$self->objects};
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unless ($params{keep_meshes}) {
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$_->mesh(undef) for @{$self->objects}; # free memory
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}
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# make perimeters
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# this will add a set of extrusion loops to each layer
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# as well as generate infill boundaries
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$status_cb->(20, "Generating perimeters");
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$_->make_perimeters for map @{$_->layers}, @{$self->objects};
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# this will clip $layer->surfaces to the infill boundaries
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# and split them in top/bottom/internal surfaces;
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$status_cb->(30, "Detecting solid surfaces");
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$_->detect_surfaces_type for @{$self->objects};
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# decide what surfaces are to be filled
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$status_cb->(35, "Preparing infill surfaces");
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$_->prepare_fill_surfaces for map @{$_->layers}, @{$self->objects};
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# this will remove unprintable surfaces
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# (those that are too tight for extrusion)
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$status_cb->(40, "Cleaning up");
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$_->remove_small_surfaces for map @{$_->layers}, @{$self->objects};
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# this will detect bridges and reverse bridges
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# and rearrange top/bottom/internal surfaces
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$status_cb->(45, "Detect bridges");
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$_->process_bridges for map @{$_->layers}, @{$self->objects};
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# this will remove unprintable perimeter loops
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# (those that are too tight for extrusion)
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$status_cb->(50, "Cleaning up the perimeters");
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$_->remove_small_perimeters for map @{$_->layers}, @{$self->objects};
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# detect which fill surfaces are near external layers
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# they will be split in internal and internal-solid surfaces
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$status_cb->(60, "Generating horizontal shells");
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$_->discover_horizontal_shells for @{$self->objects};
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# free memory
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@{$_->surfaces} = () for map @{$_->layers}, @{$self->objects};
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# combine fill surfaces to honor the "infill every N layers" option
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$status_cb->(70, "Combining infill");
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$_->infill_every_layers for @{$self->objects};
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# this will generate extrusion paths for each layer
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$status_cb->(80, "Infilling layers");
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{
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my $fill_maker = Slic3r::Fill->new('print' => $self);
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my @items = (); # [obj_idx, layer_id]
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foreach my $obj_idx (0 .. $#{$self->objects}) {
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push @items, map [$obj_idx, $_], 0..$#{$self->objects->[$obj_idx]->layers};
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}
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Slic3r::parallelize(
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items => [@items],
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thread_cb => sub {
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my $q = shift;
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$Slic3r::Geometry::Clipper::clipper = Math::Clipper->new;
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my $fills = {};
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while (defined (my $obj_layer = $q->dequeue)) {
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my ($obj_idx, $layer_id) = @$obj_layer;
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$fills->{$obj_idx} ||= {};
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$fills->{$obj_idx}{$layer_id} = [ $fill_maker->make_fill($self->objects->[$obj_idx]->layers->[$layer_id]) ];
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}
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return $fills;
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},
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collect_cb => sub {
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my $fills = shift;
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foreach my $obj_idx (keys %$fills) {
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foreach my $layer_id (keys %{$fills->{$obj_idx}}) {
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@{$self->objects->[$obj_idx]->layers->[$layer_id]->fills} = @{$fills->{$obj_idx}{$layer_id}};
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}
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}
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},
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no_threads_cb => sub {
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foreach my $layer (map @{$_->layers}, @{$self->objects}) {
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@{$layer->fills} = $fill_maker->make_fill($layer);
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}
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},
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);
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}
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# generate support material
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if ($Slic3r::support_material) {
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$status_cb->(85, "Generating support material");
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$_->generate_support_material(print => $self) for @{$self->objects};
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}
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# free memory (note that support material needs fill_surfaces)
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@{$_->fill_surfaces} = () for map @{$_->layers}, @{$self->objects};
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# make skirt
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$status_cb->(88, "Generating skirt");
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$self->make_skirt;
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# output everything to a G-code file
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my $output_file = $self->expanded_output_filepath($params{output_file});
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$status_cb->(90, "Exporting G-code to $output_file");
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$self->write_gcode($output_file);
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# run post-processing scripts
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if (@$Slic3r::post_process) {
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$status_cb->(95, "Running post-processing scripts");
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for (@$Slic3r::post_process) {
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Slic3r::debugf " '%s' '%s'\n", $_, $output_file;
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system($_, $output_file);
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}
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}
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# output some statistics
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$self->processing_time(tv_interval($t0));
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printf "Done. Process took %d minutes and %.3f seconds\n",
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int($self->processing_time/60),
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$self->processing_time - int($self->processing_time/60)*60;
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# TODO: more statistics!
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printf "Filament required: %.1fmm (%.1fcm3)\n",
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$self->total_extrusion_length, $self->total_extrusion_volume;
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}
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sub export_svg {
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my $self = shift;
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my %params = @_;
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$_->slice for @{$self->objects};
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unless ($params{keep_meshes}) {
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$_->mesh(undef) for @{$self->objects}; # free memory
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}
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$self->arrange_objects;
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my $output_file = $self->expanded_output_filepath($params{output_file});
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$output_file =~ s/\.gcode$/.svg/i;
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open my $fh, ">", $output_file or die "Failed to open $output_file for writing\n";
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print "Exporting to $output_file...";
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my $print_size = $self->size;
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print $fh sprintf <<"EOF", unscale($print_size->[X]), unscale($print_size->[Y]);
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<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
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<!DOCTYPE svg PUBLIC "-//W3C//DTD SVG 1.0//EN" "http://www.w3.org/TR/2001/REC-SVG-20010904/DTD/svg10.dtd">
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<svg width="%s" height="%s" xmlns="http://www.w3.org/2000/svg" xmlns:svg="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:slic3r="http://slic3r.org/namespaces/slic3r">
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<!--
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Generated using Slic3r $Slic3r::VERSION
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http://slic3r.org/
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-->
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EOF
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my $print_polygon = sub {
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my ($polygon, $type) = @_;
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printf $fh qq{ <polygon slic3r:type="%s" points="%s" style="fill: %s" />\n},
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$type, (join ' ', map { join ',', map unscale $_, @$_ } @$polygon),
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($type eq 'contour' ? 'black' : 'white');
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};
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for my $layer_id (0..$self->layer_count-1) {
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my @layers = map $_->layers->[$layer_id], @{$self->objects};
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printf $fh qq{ <g id="layer%d" slic3r:z="%s">\n}, $layer_id, unscale +(grep defined $_, @layers)[0]->slice_z;
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for my $obj_idx (0 .. $#layers) {
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my $layer = $layers[$layer_id] or next;
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# sort slices so that the outermost ones come first
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my @slices = sort { $a->expolygon->contour->encloses_point($b->expolygon->contour->[0]) ? 0 : 1 } @{$layer->slices};
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foreach my $copy (@{$self->copies->[$obj_idx]}) {
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foreach my $slice (@slices) {
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my $expolygon = $slice->expolygon->clone;
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$expolygon->translate(@$copy);
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$print_polygon->($expolygon->contour, 'contour');
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$print_polygon->($_, 'hole') for $expolygon->holes;
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}
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}
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}
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print $fh qq{ </g>\n};
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}
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print $fh "</svg>\n";
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close $fh;
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print "Done.\n";
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}
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sub make_skirt {
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my $self = shift;
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return unless $Slic3r::skirts > 0;
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# collect points from all layers contained in skirt height
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my $skirt_height = $Slic3r::skirt_height;
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$skirt_height = $self->layer_count if $skirt_height > $self->layer_count;
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my @points = ();
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foreach my $obj_idx (0 .. $#{$self->objects}) {
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my @layers = map $self->objects->[$obj_idx]->layer($_), 0..($skirt_height-1);
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my @layer_points = (
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(map @$_, map @{$_->expolygon}, map @{$_->slices}, @layers),
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(map @$_, map @{$_->thin_walls}, @layers),
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(map @{$_->polyline}, map @{$_->support_fills->paths}, grep $_->support_fills, @layers),
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);
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push @points, map move_points($_, @layer_points), @{$self->copies->[$obj_idx]};
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}
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return if @points < 3; # at least three points required for a convex hull
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# find out convex hull
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my $convex_hull = convex_hull(\@points);
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# draw outlines from outside to inside
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my @skirt = ();
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for (my $i = $Slic3r::skirts - 1; $i >= 0; $i--) {
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my $distance = scale ($Slic3r::skirt_distance + ($Slic3r::flow_spacing * $i));
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my $outline = offset([$convex_hull], $distance, $Slic3r::scaling_factor * 100, JT_ROUND);
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push @skirt, Slic3r::ExtrusionLoop->new(
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polygon => Slic3r::Polygon->new(@{$outline->[0]}),
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role => 'skirt',
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);
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}
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push @{$self->skirt}, @skirt;
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}
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sub write_gcode {
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my $self = shift;
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my ($file) = @_;
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# open output gcode file
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open my $fh, ">", $file
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or die "Failed to open $file for writing\n";
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# write some information
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my @lt = localtime;
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printf $fh "; generated by Slic3r $Slic3r::VERSION on %04d-%02d-%02d at %02d:%02d:%02d\n\n",
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$lt[5] + 1900, $lt[4]+1, $lt[3], $lt[2], $lt[1], $lt[0];
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print $fh "; $_\n" foreach split /\R/, $Slic3r::notes;
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print $fh "\n" if $Slic3r::notes;
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for (qw(layer_height perimeters solid_layers fill_density nozzle_diameter filament_diameter
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extrusion_multiplier perimeter_speed infill_speed travel_speed extrusion_width_ratio scale)) {
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printf $fh "; %s = %s\n", $_, Slic3r::Config->get($_);
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}
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printf $fh "; single wall width = %.2fmm\n", $Slic3r::flow_width;
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print $fh "\n";
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# write start commands to file
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printf $fh "M%s %s%d ; set bed temperature\n",
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($Slic3r::gcode_flavor eq 'makerbot' ? '109' : '190'),
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($Slic3r::gcode_flavor eq 'mach3' ? 'P' : 'S'), $Slic3r::first_layer_bed_temperature
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if $Slic3r::first_layer_bed_temperature && $Slic3r::start_gcode !~ /M190/i;
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printf $fh "M104 %s%d ; set temperature\n",
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($Slic3r::gcode_flavor eq 'mach3' ? 'P' : 'S'), $Slic3r::first_layer_temperature
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if $Slic3r::first_layer_temperature;
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printf $fh "%s\n", Slic3r::Config->replace_options($Slic3r::start_gcode);
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printf $fh "M109 %s%d ; wait for temperature to be reached\n",
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($Slic3r::gcode_flavor eq 'mach3' ? 'P' : 'S'), $Slic3r::first_layer_temperature
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if $Slic3r::first_layer_temperature && $Slic3r::gcode_flavor ne 'makerbot'
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&& $Slic3r::start_gcode !~ /M109/i;
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print $fh "G90 ; use absolute coordinates\n";
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print $fh "G21 ; set units to millimeters\n";
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if ($Slic3r::gcode_flavor =~ /^(?:reprap|teacup)$/) {
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printf $fh "G92 %s0 ; reset extrusion distance\n", $Slic3r::extrusion_axis
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if $Slic3r::extrusion_axis && !$Slic3r::use_relative_e_distances;
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if ($Slic3r::gcode_flavor =~ /^(?:reprap|makerbot)$/) {
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if ($Slic3r::use_relative_e_distances) {
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print $fh "M83 ; use relative distances for extrusion\n";
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} else {
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print $fh "M82 ; use absolute distances for extrusion\n";
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}
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}
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}
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# calculate X,Y shift to center print around specified origin
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my @print_bb = $self->bounding_box;
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my @shift = (
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$Slic3r::print_center->[X] - (unscale ($print_bb[X2] - $print_bb[X1]) / 2) - unscale $print_bb[X1],
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$Slic3r::print_center->[Y] - (unscale ($print_bb[Y2] - $print_bb[Y1]) / 2) - unscale $print_bb[Y1],
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|
);
|
|
|
|
# set up our extruder object
|
|
my $extruder = Slic3r::Extruder->new;
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|
my $min_print_speed = 60 * $Slic3r::min_print_speed;
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|
my $dec = $extruder->dec;
|
|
if ($Slic3r::support_material && $Slic3r::support_material_tool > 0) {
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|
print $fh $extruder->set_tool(0);
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|
}
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|
print $fh $extruder->set_fan(0, 1) if $Slic3r::cooling && $Slic3r::disable_fan_first_layers;
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|
|
|
# write gcode commands layer by layer
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|
for my $layer_id (0..$self->layer_count-1) {
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|
my @obj_idx = grep $self->objects->[$_]->layers->[$layer_id], 0..$#{$self->objects};
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|
my @obj_layers = map $self->objects->[$_]->layers->[$layer_id], @obj_idx;
|
|
if ($layer_id == 1) {
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|
printf $fh "M104 %s%d ; set temperature\n",
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|
($Slic3r::gcode_flavor eq 'mach3' ? 'P' : 'S'), $Slic3r::temperature
|
|
if $Slic3r::temperature && $Slic3r::temperature != $Slic3r::first_layer_temperature;
|
|
printf $fh "M140 %s%d ; set bed temperature\n",
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|
($Slic3r::gcode_flavor eq 'mach3' ? 'P' : 'S'), $Slic3r::bed_temperature
|
|
if $Slic3r::bed_temperature && $Slic3r::bed_temperature != $Slic3r::first_layer_bed_temperature;
|
|
}
|
|
|
|
# go to layer
|
|
my $layer_gcode = $extruder->change_layer($obj_layers[0]);
|
|
$extruder->elapsed_time(0);
|
|
|
|
# extrude skirt
|
|
$extruder->shift_x($shift[X]);
|
|
$extruder->shift_y($shift[Y]);
|
|
$layer_gcode .= $extruder->set_acceleration($Slic3r::perimeter_acceleration);
|
|
if ($layer_id < $Slic3r::skirt_height) {
|
|
$layer_gcode .= $extruder->extrude_loop($_, 'skirt') for @{$self->skirt};
|
|
}
|
|
|
|
for my $obj_idx (@obj_idx) {
|
|
my $layer = $self->objects->[$obj_idx]->layers->[$layer_id];
|
|
for my $copy (@{ $self->copies->[$obj_idx] }) {
|
|
# retract explicitely because changing the shift_[xy] properties below
|
|
# won't always trigger the automatic retraction
|
|
$layer_gcode .= $extruder->retract;
|
|
|
|
$extruder->shift_x($shift[X] + unscale $copy->[X]);
|
|
$extruder->shift_y($shift[Y] + unscale $copy->[Y]);
|
|
|
|
# extrude perimeters
|
|
$layer_gcode .= $extruder->extrude($_, 'perimeter') for @{ $layer->perimeters };
|
|
|
|
# extrude fills
|
|
$layer_gcode .= $extruder->set_acceleration($Slic3r::infill_acceleration);
|
|
for my $fill (@{ $layer->fills }) {
|
|
$layer_gcode .= $extruder->extrude_path($_, 'fill')
|
|
for $fill->shortest_path($extruder->last_pos);
|
|
}
|
|
|
|
# extrude support material
|
|
if ($layer->support_fills) {
|
|
$layer_gcode .= $extruder->set_tool($Slic3r::support_material_tool)
|
|
if $Slic3r::support_material_tool > 0;
|
|
$layer_gcode .= $extruder->extrude_path($_, 'support material')
|
|
for $layer->support_fills->shortest_path($extruder->last_pos);
|
|
$layer_gcode .= $extruder->set_tool(0)
|
|
if $Slic3r::support_material_tool > 0;
|
|
}
|
|
}
|
|
}
|
|
last if !$layer_gcode;
|
|
|
|
my $fan_speed = $Slic3r::fan_always_on ? $Slic3r::min_fan_speed : 0;
|
|
my $speed_factor = 1;
|
|
if ($Slic3r::cooling) {
|
|
my $layer_time = $extruder->elapsed_time;
|
|
Slic3r::debugf "Layer %d estimated printing time: %d seconds\n", $layer_id, $layer_time;
|
|
if ($layer_time < $Slic3r::slowdown_below_layer_time) {
|
|
$fan_speed = $Slic3r::max_fan_speed;
|
|
$speed_factor = $layer_time / $Slic3r::slowdown_below_layer_time;
|
|
} elsif ($layer_time < $Slic3r::fan_below_layer_time) {
|
|
$fan_speed = $Slic3r::max_fan_speed - ($Slic3r::max_fan_speed - $Slic3r::min_fan_speed)
|
|
* ($layer_time - $Slic3r::slowdown_below_layer_time)
|
|
/ ($Slic3r::fan_below_layer_time - $Slic3r::slowdown_below_layer_time); #/
|
|
}
|
|
Slic3r::debugf " fan = %d%%, speed = %d%%\n", $fan_speed, $speed_factor * 100;
|
|
|
|
if ($speed_factor < 1) {
|
|
$layer_gcode =~ s/^(?=.*? [XY])(?=.*? E)(G1 .*?F)(\d+(?:\.\d+)?)/
|
|
my $new_speed = $2 * $speed_factor;
|
|
$1 . sprintf("%.${dec}f", $new_speed < $min_print_speed ? $min_print_speed : $new_speed)
|
|
/gexm;
|
|
}
|
|
$fan_speed = 0 if $layer_id < $Slic3r::disable_fan_first_layers;
|
|
}
|
|
$layer_gcode = $extruder->set_fan($fan_speed) . $layer_gcode;
|
|
|
|
# bridge fan speed
|
|
if (!$Slic3r::cooling || $Slic3r::bridge_fan_speed == 0 || $layer_id < $Slic3r::disable_fan_first_layers) {
|
|
$layer_gcode =~ s/^;_BRIDGE_FAN_(?:START|END)\n//gm;
|
|
} else {
|
|
$layer_gcode =~ s/^;_BRIDGE_FAN_START\n/ $extruder->set_fan($Slic3r::bridge_fan_speed, 1) /gmex;
|
|
$layer_gcode =~ s/^;_BRIDGE_FAN_END\n/ $extruder->set_fan($fan_speed, 1) /gmex;
|
|
}
|
|
|
|
print $fh $layer_gcode;
|
|
}
|
|
|
|
# save statistic data
|
|
$self->total_extrusion_length($extruder->total_extrusion_length);
|
|
|
|
# write end commands to file
|
|
print $fh $extruder->retract;
|
|
print $fh $extruder->set_fan(0);
|
|
print $fh "M501 ; reset acceleration\n" if $Slic3r::acceleration;
|
|
printf $fh "%s\n", Slic3r::Config->replace_options($Slic3r::end_gcode);
|
|
|
|
printf $fh "; filament used = %.1fmm (%.1fcm3)\n",
|
|
$self->total_extrusion_length, $self->total_extrusion_volume;
|
|
|
|
# close our gcode file
|
|
close $fh;
|
|
}
|
|
|
|
sub total_extrusion_volume {
|
|
my $self = shift;
|
|
return $self->total_extrusion_length * ($Slic3r::filament_diameter**2) * PI/4 / 1000;
|
|
}
|
|
|
|
# this method will return the value of $self->output_file after expanding its
|
|
# format variables with their values
|
|
sub expanded_output_filepath {
|
|
my $self = shift;
|
|
my ($path) = @_;
|
|
|
|
# if no explicit output file was defined, we take the input
|
|
# file directory and append the specified filename format
|
|
my $input_file = $self->objects->[0]->input_file;
|
|
$path ||= (fileparse($input_file))[1] . $Slic3r::output_filename_format;
|
|
|
|
my $input_filename = my $input_filename_base = basename($input_file);
|
|
$input_filename_base =~ s/\.(?:stl|amf(?:\.xml)?)$//i;
|
|
|
|
return Slic3r::Config->replace_options($path, {
|
|
input_filename => $input_filename,
|
|
input_filename_base => $input_filename_base,
|
|
});
|
|
}
|
|
|
|
1;
|