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Detection of curled edges to enhance slowdown for overhangs algorithm (#2056)

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* Overhang perimeter handling

Updated code to handle overhang perimeters as an overhang and not as a bridge.

* Preparing to add curled extrusions identification

* Porting curling calculations from Prusa Slier 2.6.1

* Prototype 1 - slowdown extended to detect curled edges and further reduce speed

First prototype of the code submitted.

* Working prototype - 2

Code is now finally working - external perimeters are slowed down as needed when there is likelyhood of curling up.

ToDo:
1. Reslicing the model causes the algorithm not to run - need to find where this fails to trigger the call for this.
2. Slowdown of internal perimeters not working yet.

* Updated to use overhang wall speed instead of bridging speed for this algorithm

* Fixed bug in speed calculation and tweaked parameters for high speed printer

Fixed bug in speed calculation and tweaked parameters for high speed printer

* Attempting to fix "set started" not being set

* Parameter tweak after print tests

* Fixed estimation not running when model is re-sliced.

* Removing debug printf statements and fixed threading flag.

* Fixed threading

* Parameter tweaks following print tests

* Made this as an option in the GUI

* Reintroduced handling of bridges as per original design

* UI line toggling when option makes sense to be visible.

* Fixed bug in field visibility & made it default to off

* Code optimisation

---------

Co-authored-by: SoftFever <softfeverever@gmail.com>
This commit is contained in:
igiannakas 2023-09-16 15:24:18 +01:00 • committed by GitHub
parent bcedb431ab
commit 61437b2c76
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16 changed files with 322 additions and 143 deletions
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83
src/libslic3r/GCode.cpp
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@ -4530,35 +4530,68 @@ std::string GCode::_extrude(const ExtrusionPath &path, std::string description,
if (m_config.enable_overhang_speed && !m_config.overhang_speed_classic && !this->on_first_layer() &&
(is_bridge(path.role()) || is_perimeter(path.role()))) {
double out_wall_ref_speed = m_config.get_abs_value("outer_wall_speed");
ConfigOptionPercents overhang_overlap_levels({75, 50, 25, 13, 12.99, 0});
ConfigOptionFloatsOrPercents dynamic_overhang_speeds(
{(m_config.get_abs_value("overhang_1_4_speed") < 0.5) ?
FloatOrPercent{100, true} :
FloatOrPercent{m_config.get_abs_value("overhang_1_4_speed") * 100 / out_wall_ref_speed, true},
(m_config.get_abs_value("overhang_2_4_speed") < 0.5) ?
FloatOrPercent{100, true} :
FloatOrPercent{m_config.get_abs_value("overhang_2_4_speed") * 100 / out_wall_ref_speed, true},
(m_config.get_abs_value("overhang_3_4_speed") < 0.5) ?
FloatOrPercent{100, true} :
FloatOrPercent{m_config.get_abs_value("overhang_3_4_speed") * 100 / out_wall_ref_speed, true},
(m_config.get_abs_value("overhang_4_4_speed") < 0.5) ?
FloatOrPercent{100, true} :
FloatOrPercent{m_config.get_abs_value("overhang_4_4_speed") * 100 / out_wall_ref_speed, true},
FloatOrPercent{m_config.get_abs_value("bridge_speed") * 100 / out_wall_ref_speed, true},
FloatOrPercent{m_config.get_abs_value("bridge_speed") * 100 / out_wall_ref_speed, true}});
double out_wall_ref_speed = m_config.get_abs_value("outer_wall_speed");
ConfigOptionPercents overhang_overlap_levels({75, 50, 25, 13, 12.99, 0});
if (out_wall_ref_speed == 0)
out_wall_ref_speed = EXTRUDER_CONFIG(filament_max_volumetric_speed) / _mm3_per_mm;
if (m_config.slowdown_for_curled_perimeters){
ConfigOptionFloatsOrPercents dynamic_overhang_speeds(
{(m_config.get_abs_value("overhang_1_4_speed") < 0.5) ?
FloatOrPercent{100, true} :
FloatOrPercent{m_config.get_abs_value("overhang_1_4_speed") * 100 / out_wall_ref_speed, true},
(m_config.get_abs_value("overhang_2_4_speed") < 0.5) ?
FloatOrPercent{100, true} :
FloatOrPercent{m_config.get_abs_value("overhang_2_4_speed") * 100 / out_wall_ref_speed, true},
(m_config.get_abs_value("overhang_3_4_speed") < 0.5) ?
FloatOrPercent{100, true} :
FloatOrPercent{m_config.get_abs_value("overhang_3_4_speed") * 100 / out_wall_ref_speed, true},
(m_config.get_abs_value("overhang_4_4_speed") < 0.5) ?
FloatOrPercent{100, true} :
FloatOrPercent{m_config.get_abs_value("overhang_4_4_speed") * 100 / out_wall_ref_speed, true},
(m_config.get_abs_value("overhang_4_4_speed") < 0.5) ?
FloatOrPercent{100, true} :
FloatOrPercent{m_config.get_abs_value("overhang_4_4_speed") * 100 / out_wall_ref_speed, true},
(m_config.get_abs_value("overhang_4_4_speed") < 0.5) ?
FloatOrPercent{100, true} :
FloatOrPercent{m_config.get_abs_value("overhang_4_4_speed") * 100 / out_wall_ref_speed, true}});
if (out_wall_ref_speed == 0)
out_wall_ref_speed = EXTRUDER_CONFIG(filament_max_volumetric_speed) / _mm3_per_mm;
if (EXTRUDER_CONFIG(filament_max_volumetric_speed) > 0) {
out_wall_ref_speed = std::min(out_wall_ref_speed, EXTRUDER_CONFIG(filament_max_volumetric_speed) / path.mm3_per_mm);
}
if (EXTRUDER_CONFIG(filament_max_volumetric_speed) > 0) {
out_wall_ref_speed = std::min(out_wall_ref_speed, EXTRUDER_CONFIG(filament_max_volumetric_speed) / path.mm3_per_mm);
}
new_points = m_extrusion_quality_estimator.estimate_extrusion_quality(path, overhang_overlap_levels, dynamic_overhang_speeds,
out_wall_ref_speed, speed);
new_points = m_extrusion_quality_estimator.estimate_extrusion_quality(path, overhang_overlap_levels, dynamic_overhang_speeds,
out_wall_ref_speed, speed, m_config.slowdown_for_curled_perimeters);
}else{
ConfigOptionFloatsOrPercents dynamic_overhang_speeds(
{(m_config.get_abs_value("overhang_1_4_speed") < 0.5) ?
FloatOrPercent{100, true} :
FloatOrPercent{m_config.get_abs_value("overhang_1_4_speed") * 100 / out_wall_ref_speed, true},
(m_config.get_abs_value("overhang_2_4_speed") < 0.5) ?
FloatOrPercent{100, true} :
FloatOrPercent{m_config.get_abs_value("overhang_2_4_speed") * 100 / out_wall_ref_speed, true},
(m_config.get_abs_value("overhang_3_4_speed") < 0.5) ?
FloatOrPercent{100, true} :
FloatOrPercent{m_config.get_abs_value("overhang_3_4_speed") * 100 / out_wall_ref_speed, true},
(m_config.get_abs_value("overhang_4_4_speed") < 0.5) ?
FloatOrPercent{100, true} :
FloatOrPercent{m_config.get_abs_value("overhang_4_4_speed") * 100 / out_wall_ref_speed, true},
FloatOrPercent{m_config.get_abs_value("bridge_speed") * 100 / out_wall_ref_speed, true},
FloatOrPercent{m_config.get_abs_value("bridge_speed") * 100 / out_wall_ref_speed, true}});
if (out_wall_ref_speed == 0)
out_wall_ref_speed = EXTRUDER_CONFIG(filament_max_volumetric_speed) / _mm3_per_mm;
if (EXTRUDER_CONFIG(filament_max_volumetric_speed) > 0) {
out_wall_ref_speed = std::min(out_wall_ref_speed, EXTRUDER_CONFIG(filament_max_volumetric_speed) / path.mm3_per_mm);
}
new_points = m_extrusion_quality_estimator.estimate_extrusion_quality(path, overhang_overlap_levels, dynamic_overhang_speeds,
out_wall_ref_speed, speed, m_config.slowdown_for_curled_perimeters);
}
variable_speed = std::any_of(new_points.begin(), new_points.end(), [speed](const ProcessedPoint &p) { return p.speed != speed; });
variable_speed = std::any_of(new_points.begin(), new_points.end(), [speed](const ProcessedPoint &p) { return p.speed != speed; });
}
double F = speed * 60; // convert mm/sec to mm/min