/usr/bin/wireframe is in slic3r 1.2.9+dfsg-2build1.
This file is owned by root:root, with mode 0o755.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 | #!/usr/bin/perl
# This script exports experimental G-code for wireframe printing
# (inspired by the brilliant WirePrint concept)
use strict;
use warnings;
BEGIN {
use FindBin;
use lib "$FindBin::Bin/../lib";
}
use Getopt::Long qw(:config no_auto_abbrev);
use Slic3r;
use Slic3r::ExtrusionPath ':roles';
use Slic3r::Geometry qw(scale unscale X Y PI);
my %opt = (
step_height => 5,
nozzle_angle => 30,
nozzle_width => 10,
first_layer_height => 0.3,
);
{
my %options = (
'help' => sub { usage() },
'output|o=s' => \$opt{output_file},
'step-height|h=f' => \$opt{step_height},
'nozzle-angle|a=f' => \$opt{nozzle_angle},
'nozzle-width|w=f' => \$opt{nozzle_width},
'first-layer-height=f' => \$opt{first_layer_height},
);
GetOptions(%options) or usage(1);
$opt{output_file} or usage(1);
$ARGV[0] or usage(1);
}
{
# load model
my $model = Slic3r::Model->read_from_file($ARGV[0]);
$model->add_default_instances;
$model->center_instances_around_point(Slic3r::Pointf->new(100,100));
my $mesh = $model->mesh;
$mesh->translate(0, 0, -$mesh->bounding_box->z_min);
# get slices
my @z = ();
my $z_max = $mesh->bounding_box->z_max;
for (my $z = $opt{first_layer_height}; $z <= $z_max; $z += $opt{step_height}) {
push @z, $z;
}
my @slices = @{$mesh->slice(\@z)};
my $flow = Slic3r::Flow->new(
width => 0.35,
height => 0.35,
nozzle_diameter => 0.35,
bridge => 1,
);
my $config = Slic3r::Config::Print->new;
$config->set('gcode_comments', 1);
open my $fh, '>', $opt{output_file};
my $gcodegen = Slic3r::GCode->new(
enable_loop_clipping => 0, # better bonding
);
$gcodegen->apply_print_config($config);
$gcodegen->set_extruders([0]);
print $fh $gcodegen->set_extruder(0);
print $fh $gcodegen->writer->preamble;
my $e = $gcodegen->writer->extruder->e_per_mm3 * $flow->mm3_per_mm;
foreach my $layer_id (0..$#z) {
my $z = $z[$layer_id];
foreach my $island (@{$slices[$layer_id]}) {
foreach my $polygon (@$island) {
if ($layer_id > 0) {
# find the lower polygon that we want to connect to this one
my $lower = $slices[$layer_id-1]->[0]->contour; # 't was easy, wasn't it?
my $lower_z = $z[$layer_id-1];
{
my @points = ();
# keep all points with strong angles
{
my @pp = @$polygon;
foreach my $i (0..$#pp) {
push @points, $pp[$i-1] if abs($pp[$i-1]->ccw_angle($pp[$i-2], $pp[$i]) - PI) > PI/3;
}
}
$polygon = Slic3r::Polygon->new(@points);
}
#$polygon = Slic3r::Polygon->new(@{$polygon->split_at_first_point->equally_spaced_points(scale $opt{nozzle_width})});
# find vertical lines
my @vertical = ();
foreach my $point (@{$polygon}) {
push @vertical, Slic3r::Line->new($point->projection_onto_polygon($lower), $point);
}
next if !@vertical;
my @points = ();
foreach my $line (@vertical) {
push @points, Slic3r::Pointf3->new(
unscale($line->a->x),
unscale($line->a->y), #))
$lower_z,
);
push @points, Slic3r::Pointf3->new(
unscale($line->b->x),
unscale($line->b->y), #))
$z,
);
}
# reappend first point as destination of the last diagonal segment
push @points, Slic3r::Pointf3->new(
unscale($vertical[0]->a->x),
unscale($vertical[0]->a->y), #))
$lower_z,
);
# move to the position of the first vertical line
print $fh $gcodegen->writer->travel_to_xyz(shift @points);
# extrude segments
foreach my $point (@points) {
print $fh $gcodegen->writer->extrude_to_xyz($point, $e * $gcodegen->writer->get_position->distance_to($point));
}
}
}
print $fh $gcodegen->writer->travel_to_z($z);
foreach my $polygon (@$island) {
#my $polyline = $polygon->split_at_vertex(Slic3r::Point->new_scale(@{$gcodegen->writer->get_position}[0,1]));
my $polyline = $polygon->split_at_first_point;
print $fh $gcodegen->writer->travel_to_xy(Slic3r::Pointf->new_unscale(@{ $polyline->first_point }), "move to first contour point");
foreach my $line (@{$polyline->lines}) {
my $point = Slic3r::Pointf->new_unscale(@{ $line->b });
print $fh $gcodegen->writer->extrude_to_xy($point, $e * unscale($line->length));
}
}
}
}
close $fh;
}
sub usage {
my ($exit_code) = @_;
print <<"EOF";
Usage: wireframe.pl [ OPTIONS ] file.stl
--help Output this usage screen and exit
--output, -o Write to the specified file
--step-height, -h Use the specified step height
--nozzle-angle, -a Max nozzle angle
--nozzle-width, -w External nozzle diameter
EOF
exit ($exit_code || 0);
}
__END__
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