146 lines
4.0 KiB
C++
146 lines
4.0 KiB
C++
#include "Extruder.hpp"
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#include "GCodeWriter.hpp"
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#include "PrintConfig.hpp"
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namespace Slic3r {
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Extruder::Extruder(unsigned int id, GCodeConfig *config) :
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m_id(id),
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m_config(config)
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{
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// cache values that are going to be called often
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m_e_per_mm3 = this->extrusion_multiplier();
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if (! m_config->use_volumetric_e)
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m_e_per_mm3 /= this->filament_crossection();
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}
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std::pair<double, double> Extruder::extrude(double dE)
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{
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// in case of relative E distances we always reset to 0 before any output
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if (m_config->use_relative_e_distances)
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m_E = 0.;
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// Quantize extruder delta to G-code resolution.
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dE = GCodeFormatter::quantize_e(dE);
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m_E += dE;
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m_absolute_E += dE;
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if (dE < 0.)
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m_retracted -= dE;
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return std::make_pair(dE, m_E);
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}
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/* This method makes sure the extruder is retracted by the specified amount
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of filament and returns the amount of filament retracted.
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If the extruder is already retracted by the same or a greater amount,
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this method is a no-op.
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The restart_extra argument sets the extra length to be used for
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unretraction. If we're actually performing a retraction, any restart_extra
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value supplied will overwrite the previous one if any. */
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std::pair<double, double> Extruder::retract(double retract_length, double restart_extra)
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{
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// in case of relative E distances we always reset to 0 before any output
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if (m_config->use_relative_e_distances)
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m_E = 0.;
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// Quantize extruder delta to G-code resolution.
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double to_retract = this->retract_to_go(retract_length);
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if (to_retract > 0.) {
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m_E -= to_retract;
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m_absolute_E -= to_retract;
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m_retracted += to_retract;
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m_restart_extra = restart_extra;
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}
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return std::make_pair(to_retract, m_E);
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}
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double Extruder::retract_to_go(double retract_length) const
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{
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return std::max(0., GCodeFormatter::quantize_e(retract_length - m_retracted));
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}
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std::pair<double, double> Extruder::unretract()
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{
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auto [dE, emitE] = this->extrude(m_retracted + m_restart_extra);
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m_retracted = 0.;
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m_restart_extra = 0.;
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return std::make_pair(dE, emitE);
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}
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// Used filament volume in mm^3.
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double Extruder::extruded_volume() const
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{
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return m_config->use_volumetric_e ?
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m_absolute_E + m_retracted :
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this->used_filament() * this->filament_crossection();
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}
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// Used filament length in mm.
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double Extruder::used_filament() const
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{
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return m_config->use_volumetric_e ?
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this->extruded_volume() / this->filament_crossection() :
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m_absolute_E + m_retracted;
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}
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double Extruder::filament_diameter() const
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{
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return m_config->filament_diameter.get_at(m_id);
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}
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double Extruder::filament_density() const
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{
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return m_config->filament_density.get_at(m_id);
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}
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double Extruder::filament_cost() const
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{
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return m_config->filament_cost.get_at(m_id);
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}
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double Extruder::extrusion_multiplier() const
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{
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return m_config->extrusion_multiplier.get_at(m_id);
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}
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// Return a "retract_before_wipe" percentage as a factor clamped to <0, 1>
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double Extruder::retract_before_wipe() const
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{
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return std::min(1., std::max(0., m_config->retract_before_wipe.get_at(m_id) * 0.01));
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}
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double Extruder::retract_length() const
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{
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return m_config->retract_length.get_at(m_id);
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}
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double Extruder::retract_lift() const
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{
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return m_config->retract_lift.get_at(m_id);
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}
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int Extruder::retract_speed() const
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{
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return int(floor(m_config->retract_speed.get_at(m_id)+0.5));
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}
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int Extruder::deretract_speed() const
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{
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int speed = int(floor(m_config->deretract_speed.get_at(m_id)+0.5));
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return (speed > 0) ? speed : this->retract_speed();
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}
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double Extruder::retract_restart_extra() const
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{
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return m_config->retract_restart_extra.get_at(m_id);
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}
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double Extruder::retract_length_toolchange() const
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{
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return m_config->retract_length_toolchange.get_at(m_id);
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}
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double Extruder::retract_restart_extra_toolchange() const
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{
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return m_config->retract_restart_extra_toolchange.get_at(m_id);
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}
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}
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