mirror of
https://github.com/SoftFever/OrcaSlicer.git
synced 2025-10-31 12:41:20 -06:00
94 lines
4.3 KiB
Perl
94 lines
4.3 KiB
Perl
# A standalone (no C++ implementation) G-code filter, to control cooling of the print.
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# The G-code is processed per layer. Once a layer is collected, fan start / stop commands are edited
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# and the print is modified to stretch over a minimum layer time.
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package Slic3r::GCode::CoolingBuffer;
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use Moo;
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has 'config' => (is => 'ro', required => 1); # Slic3r::Config::Print
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has 'gcodegen' => (is => 'ro', required => 1); # Slic3r::GCode C++ instance
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has 'gcode' => (is => 'rw', default => sub {""}); # Cache of a G-code snippet emitted for a single layer.
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has 'elapsed_time' => (is => 'rw', default => sub {0});
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has 'layer_id' => (is => 'rw');
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has 'last_z' => (is => 'rw', default => sub { {} }); # obj_id => z (basically a 'last seen' table)
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has 'min_print_speed' => (is => 'lazy');
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sub _build_min_print_speed {
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my $self = shift;
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return 60 * $self->config->min_print_speed;
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}
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sub append {
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my $self = shift;
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my ($gcode, $obj_id, $layer_id, $print_z) = @_;
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my $return = "";
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if (exists $self->last_z->{$obj_id} && $self->last_z->{$obj_id} != $print_z) {
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# A layer was finished, Z of the object's layer changed. Process the layer.
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$return = $self->flush;
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}
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$self->layer_id($layer_id);
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$self->last_z->{$obj_id} = $print_z;
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$self->gcode($self->gcode . $gcode);
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#FIXME Vojtech: This is a very rough estimate of the print time,
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# not taking into account the acceleration profiles generated by the printer firmware.
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$self->elapsed_time($self->elapsed_time + $self->gcodegen->elapsed_time);
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$self->gcodegen->set_elapsed_time(0);
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return $return;
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}
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sub flush {
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my $self = shift;
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my $gcode = $self->gcode;
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my $elapsed = $self->elapsed_time;
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$self->gcode("");
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$self->elapsed_time(0);
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$self->last_z({}); # reset the whole table otherwise we would compute overlapping times
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my $fan_speed = $self->config->fan_always_on ? $self->config->min_fan_speed : 0;
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my $speed_factor = 1;
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if ($self->config->cooling) {
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Slic3r::debugf "Layer %d estimated printing time: %d seconds\n", $self->layer_id, $elapsed;
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if ($elapsed < $self->config->slowdown_below_layer_time) {
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# Layer time very short. Enable the fan to a full throttle and slow down the print
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# (stretch the layer print time to slowdown_below_layer_time).
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$fan_speed = $self->config->max_fan_speed;
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$speed_factor = $elapsed / $self->config->slowdown_below_layer_time;
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} elsif ($elapsed < $self->config->fan_below_layer_time) {
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# Layer time quite short. Enable the fan proportionally according to the current layer time.
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$fan_speed = $self->config->max_fan_speed - ($self->config->max_fan_speed - $self->config->min_fan_speed)
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* ($elapsed - $self->config->slowdown_below_layer_time)
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/ ($self->config->fan_below_layer_time - $self->config->slowdown_below_layer_time); #/
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}
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Slic3r::debugf " fan = %d%%, speed = %d%%\n", $fan_speed, $speed_factor * 100;
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if ($speed_factor < 1) {
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# Adjust feed rate of G1 commands marked with an _EXTRUDE_SET_SPEED
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# as long as they are not _WIPE moves (they cannot if they are _EXTRUDE_SET_SPEED)
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# and they are not preceded directly by _BRIDGE_FAN_START (do not adjust bridging speed).
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$gcode =~ s/^(?=.*?;_EXTRUDE_SET_SPEED)(?!.*?;_WIPE)(?<!;_BRIDGE_FAN_START\n)(G1\sF)(\d+(?:\.\d+)?)/
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my $new_speed = $2 * $speed_factor;
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$1 . sprintf("%.3f", $new_speed < $self->min_print_speed ? $self->min_print_speed : $new_speed)
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/gexm;
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}
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}
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$fan_speed = 0 if $self->layer_id < $self->config->disable_fan_first_layers;
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$gcode = $self->gcodegen->writer->set_fan($fan_speed) . $gcode;
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# bridge fan speed
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if (!$self->config->cooling || $self->config->bridge_fan_speed == 0 || $self->layer_id < $self->config->disable_fan_first_layers) {
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$gcode =~ s/^;_BRIDGE_FAN_(?:START|END)\n//gm;
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} else {
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$gcode =~ s/^;_BRIDGE_FAN_START\n/ $self->gcodegen->writer->set_fan($self->config->bridge_fan_speed, 1) /gmex;
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$gcode =~ s/^;_BRIDGE_FAN_END\n/ $self->gcodegen->writer->set_fan($fan_speed, 1) /gmex;
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}
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$gcode =~ s/;_WIPE//g;
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$gcode =~ s/;_EXTRUDE_SET_SPEED//g;
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return $gcode;
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}
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1;
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