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Calculate autospeed on a per-layer basis in order not to slowdown the print too much when first layer or solid layers have very different settings affecting flow. #3021

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This commit is contained in:
Alessandro Ranellucci 2017-03-02 20:28:09 +01:00
parent 4fe58d768a
commit 959da803fb
1 changed files with 50 additions and 53 deletions
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103
lib/Slic3r/Print/GCode.pm
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@ -14,6 +14,7 @@ has '_skirt_done' => (is => 'rw', default => sub { {} }); #
has '_brim_done' => (is => 'rw');
has '_second_layer_things_done' => (is => 'rw');
has '_last_obj_copy' => (is => 'rw');
has '_autospeed' => (is => 'rw', default => sub { 0 }); # boolean
use List::Util qw(first sum min max);
use Slic3r::ExtrusionPath ':roles';
@ -43,59 +44,6 @@ sub BUILD {
$gcodegen->set_enable_cooling_markers(1);
$gcodegen->apply_print_config($self->config);
$gcodegen->set_extruders($self->print->extruders);
# initialize autospeed
{
# get the minimum cross-section used in the print
my @mm3_per_mm = ();
foreach my $object (@{$self->print->objects}) {
foreach my $region_id (0..$#{$self->print->regions}) {
my $region = $self->print->get_region($region_id);
foreach my $layer (@{$object->layers}) {
my $layerm = $layer->get_region($region_id);
if ($region->config->get_abs_value('perimeter_speed') == 0
|| $region->config->get_abs_value('small_perimeter_speed') == 0
|| $region->config->get_abs_value('external_perimeter_speed') == 0
|| $region->config->get_abs_value('bridge_speed') == 0) {
push @mm3_per_mm, $layerm->perimeters->min_mm3_per_mm;
}
if ($region->config->get_abs_value('infill_speed') == 0
|| $region->config->get_abs_value('solid_infill_speed') == 0
|| $region->config->get_abs_value('top_solid_infill_speed') == 0
|| $region->config->get_abs_value('bridge_speed') == 0) {
push @mm3_per_mm, $layerm->fills->min_mm3_per_mm;
}
}
}
if ($object->config->get_abs_value('support_material_speed') == 0
|| $object->config->get_abs_value('support_material_interface_speed') == 0) {
foreach my $layer (@{$object->support_layers}) {
push @mm3_per_mm, $layer->support_fills->min_mm3_per_mm;
push @mm3_per_mm, $layer->support_interface_fills->min_mm3_per_mm;
}
}
}
# filter out 0-width segments
@mm3_per_mm = grep $_ > 0.000001, @mm3_per_mm;
if (@mm3_per_mm) {
my $min_mm3_per_mm = min(@mm3_per_mm);
# In order to honor max_print_speed we need to find a target volumetric
# speed that we can use throughout the print. So we define this target
# volumetric speed as the volumetric speed produced by printing the
# smallest cross-section at the maximum speed: any larger cross-section
# will need slower feedrates.
my $volumetric_speed = $min_mm3_per_mm * $self->config->max_print_speed;
# limit such volumetric speed with max_volumetric_speed if set
if ($self->config->max_volumetric_speed > 0) {
$volumetric_speed = min(
$volumetric_speed,
$self->config->max_volumetric_speed,
);
}
$gcodegen->set_volumetric_speed($volumetric_speed);
}
}
}
$self->_cooling_buffer(Slic3r::GCode::CoolingBuffer->new($self->_gcodegen));
@ -365,6 +313,55 @@ sub process_layer {
# if we're going to apply spiralvase to this layer, disable loop clipping
$self->_gcodegen->set_enable_loop_clipping(!defined $self->_spiral_vase || !$self->_spiral_vase->enable);
# initialize autospeed
{
# get the minimum cross-section used in the layer
my @mm3_per_mm = ();
foreach my $region_id (0..$#{$self->print->regions}) {
my $region = $self->print->get_region($region_id);
my $layerm = $layer->get_region($region_id);
if ($region->config->get_abs_value('perimeter_speed') == 0
|| $region->config->get_abs_value('small_perimeter_speed') == 0
|| $region->config->get_abs_value('external_perimeter_speed') == 0
|| $region->config->get_abs_value('bridge_speed') == 0) {
push @mm3_per_mm, $layerm->perimeters->min_mm3_per_mm;
}
if ($region->config->get_abs_value('infill_speed') == 0
|| $region->config->get_abs_value('solid_infill_speed') == 0
|| $region->config->get_abs_value('top_solid_infill_speed') == 0
|| $region->config->get_abs_value('bridge_speed') == 0) {
push @mm3_per_mm, $layerm->fills->min_mm3_per_mm;
}
}
if ($layer->isa('Slic3r::Layer::Support')) {
if ($object->config->get_abs_value('support_material_speed') == 0
|| $object->config->get_abs_value('support_material_interface_speed') == 0) {
push @mm3_per_mm, $layer->support_fills->min_mm3_per_mm;
push @mm3_per_mm, $layer->support_interface_fills->min_mm3_per_mm;
}
}
# filter out 0-width segments
@mm3_per_mm = grep $_ > 0.000001, @mm3_per_mm;
if (@mm3_per_mm) {
my $min_mm3_per_mm = min(@mm3_per_mm);
# In order to honor max_print_speed we need to find a target volumetric
# speed that we can use throughout the print. So we define this target
# volumetric speed as the volumetric speed produced by printing the
# smallest cross-section at the maximum speed: any larger cross-section
# will need slower feedrates.
my $volumetric_speed = $min_mm3_per_mm * $self->config->max_print_speed;
# limit such volumetric speed with max_volumetric_speed if set
if ($self->config->max_volumetric_speed > 0) {
$volumetric_speed = min(
$volumetric_speed,
$self->config->max_volumetric_speed,
);
}
$self->_gcodegen->set_volumetric_speed($volumetric_speed);
}
}
if (!$self->_second_layer_things_done && $layer->id == 1) {
for my $extruder (@{$self->_gcodegen->writer->extruders}) {
my $temperature = $self->config->get_at('temperature', $extruder->id);