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			98 lines
		
	
	
	
		
			3.4 KiB
		
	
	
	
		
			Perl
		
	
	
	
	
	
			
		
		
	
	
			98 lines
		
	
	
	
		
			3.4 KiB
		
	
	
	
		
			Perl
		
	
	
	
	
	
| package Slic3r::Extruder;
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| use Moo;
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| 
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| use Slic3r::Geometry qw(PI scale);
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| 
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| use constant OPTIONS => [qw(
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|     extruder_offset
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|     nozzle_diameter filament_diameter extrusion_multiplier temperature first_layer_temperature
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|     retract_length retract_lift retract_speed retract_restart_extra retract_before_travel
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|     retract_layer_change retract_length_toolchange retract_restart_extra_toolchange wipe
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| )];
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| 
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| has 'id'    => (is => 'rw', required => 1);
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| has $_      => (is => 'ro', required => 1) for @{&OPTIONS};
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| has 'config'=> (is => 'ro', required => 1);
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| 
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| has 'bridge_flow'               => (is => 'lazy');
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| has 'E'                         => (is => 'rw', default => sub {0} );
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| has 'absolute_E'                => (is => 'rw', default => sub {0} );
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| has 'retracted'                 => (is => 'rw', default => sub {0} );
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| has 'restart_extra'             => (is => 'rw', default => sub {0} );
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| has 'e_per_mm3'                 => (is => 'lazy');
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| has 'retract_speed_mm_min'      => (is => 'lazy');
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| has 'scaled_wipe_distance'      => (is => 'lazy'); # scaled mm
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| has '_mm3_per_mm_cache'         => (is => 'ro', default => sub {{}});
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| 
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| sub _build_bridge_flow {
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|     my $self = shift;
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|     return Slic3r::Flow::Bridge->new(nozzle_diameter => $self->nozzle_diameter);
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| }
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| 
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| sub _build_e_per_mm3 {
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|     my $self = shift;
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|     return $self->extrusion_multiplier * (4 / (($self->filament_diameter ** 2) * PI));
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| }
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| 
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| sub _build_retract_speed_mm_min {
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|     my $self = shift;
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|     return $self->retract_speed * 60;
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| }
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| 
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| sub _build_scaled_wipe_distance {
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|     my $self = shift;
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|     
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|     # how far do we move in XY at travel_speed for the time needed to consume
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|     # retract_length at retract_speed?
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|     # reduce feedrate a bit; travel speed is often too high to move on existing material
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|     # too fast = ripping of existing material; too slow = short wipe path, thus more blob
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|     return scale($self->retract_length / $self->retract_speed * $Slic3r::Config->travel_speed * 0.8);
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| }
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| 
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| sub extrude {
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|     my ($self, $E) = @_;
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|     
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|     $self->E(0) if $self->config->use_relative_e_distances;
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|     $self->absolute_E($self->absolute_E + $E);
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|     return $self->E($self->E + $E);
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| }
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| 
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| sub extruded_volume {
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|     my ($self) = @_;
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|     return $self->absolute_E * ($self->filament_diameter**2) * PI/4;
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| }
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| 
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| sub make_flow {
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|     my $self = shift;
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|     return Slic3r::Flow->new(nozzle_diameter => $self->nozzle_diameter, @_);
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| }
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| 
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| sub mm3_per_mm {
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|     my $self = shift;
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|     my ($s, $h) = @_;
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|     
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|     my $cache_key = "${s}_${h}";
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|     if (!exists $self->_mm3_per_mm_cache->{$cache_key}) {
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|         my $w_threshold = $h + $self->nozzle_diameter;
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|         my $s_threshold = $w_threshold - &Slic3r::OVERLAP_FACTOR * ($w_threshold - ($w_threshold - $h * (1 - PI/4)));
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|         
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|         if ($s >= $s_threshold) {
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|             # rectangle with semicircles at the ends
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|             my $w = $s + &Slic3r::OVERLAP_FACTOR * $h * (1 - PI/4);
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|             $self->_mm3_per_mm_cache->{$cache_key} = $w * $h + ($h**2) / 4 * (PI - 4);
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|         } else {
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|             # rectangle with shrunk semicircles at the ends
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|             my $w = ($s + $self->nozzle_diameter * &Slic3r::OVERLAP_FACTOR * (PI/4 - 1)) / (1 + &Slic3r::OVERLAP_FACTOR * (PI/4 - 1));
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|             $self->_mm3_per_mm_cache->{$cache_key} = $self->nozzle_diameter * $h * (1 - PI/4) + $h * $w * PI/4;
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|         }
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|     }
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|     return $self->_mm3_per_mm_cache->{$cache_key};
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| }
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| 
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| sub e_per_mm {
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|     my $self = shift;
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|     my ($s, $h) = @_;
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|     return $self->mm3_per_mm($s, $h) * $self->e_per_mm3;
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| }
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| 
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| 1;
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