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Fix: Cap speed by max_volumetric_speed even for dynamic overhangs.

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This commit is contained in:
Martin Šach 2024-02-02 10:50:37 +01:00
parent 78f4a6febb
commit f64aea6499
3 changed files with 23 additions and 23 deletions
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41
src/libslic3r/GCode.cpp
View File

@ -3040,6 +3040,20 @@ std::string GCodeGenerator::travel_to_first_position(const Vec3crd& point) {
return gcode;
}
double cap_speed(
double speed, const double mm3_per_mm, const FullPrintConfig &config, int extruder_id
) {
const double general_cap{config.max_volumetric_speed.value};
if (general_cap > 0) {
speed = std::min(speed, general_cap / mm3_per_mm);
}
const double filament_cap{config.filament_max_volumetric_speed.get_at(extruder_id)};
if (filament_cap > 0) {
speed = std::min(speed, filament_cap / mm3_per_mm);
}
return speed;
}
std::string GCodeGenerator::_extrude(
const ExtrusionAttributes &path_attr,
const Geometry::ArcWelder::Path &path,
@ -3139,33 +3153,15 @@ std::string GCodeGenerator::_extrude(
speed = m_config.get_abs_value("first_layer_speed", speed);
else if (this->object_layer_over_raft())
speed = m_config.get_abs_value("first_layer_speed_over_raft", speed);
if (m_config.max_volumetric_speed.value > 0) {
// cap speed with max_volumetric_speed anyway (even if user is not using autospeed)
speed = std::min(
speed,
m_config.max_volumetric_speed.value / path_attr.mm3_per_mm
);
}
if (EXTRUDER_CONFIG(filament_max_volumetric_speed) > 0) {
// cap speed with max_volumetric_speed anyway (even if user is not using autospeed)
speed = std::min(
speed,
EXTRUDER_CONFIG(filament_max_volumetric_speed) / path_attr.mm3_per_mm
);
}
std::pair<float, float> dynamic_speed_and_fan_speed{-1, -1};
if (path_attr.overhang_attributes.has_value()) {
double external_perim_reference_speed = m_config.get_abs_value("external_perimeter_speed");
if (external_perim_reference_speed == 0)
external_perim_reference_speed = m_volumetric_speed / path_attr.mm3_per_mm;
if (m_config.max_volumetric_speed.value > 0)
external_perim_reference_speed = std::min(external_perim_reference_speed,
m_config.max_volumetric_speed.value / path_attr.mm3_per_mm);
if (EXTRUDER_CONFIG(filament_max_volumetric_speed) > 0) {
external_perim_reference_speed = std::min(external_perim_reference_speed,
EXTRUDER_CONFIG(filament_max_volumetric_speed) / path_attr.mm3_per_mm);
}
external_perim_reference_speed = cap_speed(
external_perim_reference_speed, path_attr.mm3_per_mm, m_config, m_writer.extruder()->id()
);
dynamic_speed_and_fan_speed = ExtrusionProcessor::calculate_overhang_speed(path_attr, this->m_config, m_writer.extruder()->id(),
external_perim_reference_speed, speed);
@ -3175,6 +3171,9 @@ std::string GCodeGenerator::_extrude(
speed = dynamic_speed_and_fan_speed.first;
}
// cap speed with max_volumetric_speed anyway (even if user is not using autospeed)
speed = cap_speed(speed, path_attr.mm3_per_mm, m_config, m_writer.extruder()->id());
double F = speed * 60; // convert mm/sec to mm/min
// extrude arc or line

2
src/libslic3r/GCode/ExtrusionProcessor.cpp
View File

@ -213,4 +213,4 @@ std::pair<float,float> calculate_overhang_speed(const ExtrusionAttributes &attri
return {final_speed, fan_speed};
}
}} // namespace Slic3r::ExtrusionProcessor
}} // namespace Slic3r::ExtrusionProcessor

3
src/libslic3r/PrintConfig.cpp
View File

@ -587,7 +587,8 @@ void PrintConfigDef::init_fff_params()
auto overhang_speed_setting_description = L("Overhang size is expressed as a percentage of overlap of the extrusion with the previous layer: "
"100% would be full overlap (no overhang), while 0% represents full overhang (floating extrusion, bridge). "
"Speeds for overhang sizes in between are calculated via linear interpolation. "
"If set as percentage, the speed is calculated over the external perimeter speed.");
"If set as percentage, the speed is calculated over the external perimeter speed. "
"Note that the speeds generated to gcode will never exceed the max volumetric speed value.");
def = this->add("overhang_speed_0", coFloatOrPercent);
def->label = L("speed for 0% overlap (bridge)");