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ENH: add grab length 

1.During the filament change, the extruder will extrude an extra length
of grap_length for the corresponding detection, so the purge volume can
reduce this length.

jira:NEW

Signed-off-by: xun.zhang <xun.zhang@bambulab.com>
Change-Id: I14f55a3200c1dd48b1603e50280d0c29e1319ebe
This commit is contained in:
xun.zhang 2024-07-12 16:59:10 +08:00 committed by lane.wei
parent 887ca8f45f
commit 16cadec565
6 changed files with 64 additions and 96 deletions
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3
resources/profiles/BBL/machine/fdm_machine_common.json
View File

@ -20,6 +20,9 @@
"0x0"
],
"gcode_flavor": "marlin",
"grab_length" : [
"0"
],
"silent_mode": "0",
"long_retractions_when_cut": [
"0"

3
src/libslic3r/GCode.cpp
View File

@ -5396,6 +5396,8 @@ std::string GCode::set_extruder(unsigned int filament_id, double print_z, bool b
old_retract_length_toolchange = m_config.retract_length_toolchange.get_at(previous_extruder_id);
old_filament_temp = this->on_first_layer()? m_config.nozzle_temperature_initial_layer.get_at(previous_filament_id) : m_config.nozzle_temperature.get_at(previous_filament_id);
//During the filament change, the extruder will extrude an extra length of grab_length for the corresponding detection, so the purge can reduce this length.
float grab_purge_volume = m_config.grab_length.get_at(extruder_id) * 2.4;
if (previous_extruder_id != extruder_id) {
//calc flush volume between the same extruder id
int previous_filament_id_in_new_extruder = m_writer.filament(extruder_id) != nullptr ? m_writer.filament(extruder_id)->id() : -1;
@ -5410,6 +5412,7 @@ std::string GCode::set_extruder(unsigned int filament_id, double print_z, bool b
wipe_volume = flush_matrix[previous_filament_id * number_of_extruders + filament_id];
wipe_volume *= m_config.flush_multiplier.get_at(extruder_id); // if is multi_extruder only use the fist extruder matrix
}
wipe_volume = std::max(0.f, wipe_volume-grab_purge_volume);
old_filament_e_feedrate = (int) (60.0 * m_config.filament_max_volumetric_speed.get_at(previous_filament_id) / filament_area);
old_filament_e_feedrate = old_filament_e_feedrate == 0 ? 100 : old_filament_e_feedrate;

3
src/libslic3r/Preset.cpp
View File

@ -958,7 +958,8 @@ static std::vector<std::string> s_Preset_printer_options {
"print_host_webui",
"printhost_cafile","printhost_port","printhost_authorization_type",
"printhost_user", "printhost_password", "printhost_ssl_ignore_revoke",
"use_relative_e_distances", "extruder_type","use_firmware_retraction"
"use_relative_e_distances", "extruder_type","use_firmware_retraction",
"grab_length"
};
static std::vector<std::string> s_Preset_sla_print_options {

65
src/libslic3r/Print.cpp
View File

@ -186,7 +186,8 @@ bool Print::invalidate_state_by_config_options(const ConfigOptionResolver & /* n
"long_retractions_when_cut",
"retraction_distances_when_cut",
"filament_long_retractions_when_cut",
"filament_retraction_distances_when_cut"
"filament_retraction_distances_when_cut",
"grab_length"
};
static std::unordered_set<std::string> steps_ignore;
@ -2466,7 +2467,6 @@ void Print::_make_wipe_tower()
// Get wiping matrix to get number of extruders and convert vector<double> to vector<float>:
bool is_mutli_extruder = m_config.nozzle_diameter.values.size() > 1;
size_t nozzle_nums = m_config.nozzle_diameter.values.size();
if (is_mutli_extruder) {
using FlushMatrix = std::vector<std::vector<float>>;
std::vector<FlushMatrix> multi_extruder_flush;
for (size_t nozzle_id = 0; nozzle_id < nozzle_nums; ++nozzle_id) {
@ -2485,10 +2485,10 @@ void Print::_make_wipe_tower()
size_t cur_nozzle_id = filament_maps[current_filament_id] - 1;
nozzle_cur_filament_ids[cur_nozzle_id] = current_filament_id;
for (auto &layer_tools : m_wipe_tower_data.tool_ordering.layer_tools()) { // for all layers
for (auto& layer_tools : m_wipe_tower_data.tool_ordering.layer_tools()) { // for all layers
if (!layer_tools.has_wipe_tower) continue;
bool first_layer = &layer_tools == &m_wipe_tower_data.tool_ordering.front();
wipe_tower.plan_toolchange((float) layer_tools.print_z, (float) layer_tools.wipe_tower_layer_height, current_filament_id, current_filament_id);
wipe_tower.plan_toolchange((float)layer_tools.print_z, (float)layer_tools.wipe_tower_layer_height, current_filament_id, current_filament_id);
for (const auto filament_id : layer_tools.extruders) {
if (filament_id == current_filament_id)
@ -2505,7 +2505,11 @@ void Print::_make_wipe_tower()
layer_tools.wiping_extrusions().mark_wiping_extrusions(*this, current_filament_id, filament_id, volume_to_purge);
}
wipe_tower.plan_toolchange((float) layer_tools.print_z, (float) layer_tools.wipe_tower_layer_height, current_filament_id, filament_id,
//During the filament change, the extruder will extrude an extra length of grab_length for the corresponding detection, so the purge can reduce this length.
float grab_purge_volume = m_config.grab_length.get_at(nozzle_id) * 2.4; //(diameter/2)^2*PI=2.4
volume_to_purge = std::max(0.f, volume_to_purge - grab_purge_volume);
wipe_tower.plan_toolchange((float)layer_tools.print_z, (float)layer_tools.wipe_tower_layer_height, current_filament_id, filament_id,
m_config.prime_volume, volume_to_purge);
current_filament_id = filament_id;
nozzle_cur_filament_ids[nozzle_id] = filament_id;
@ -2522,57 +2526,6 @@ void Print::_make_wipe_tower()
break;
}
}
else {
std::vector<float> flush_matrix(cast<float>(get_flush_volumes_matrix(m_config.flush_volumes_matrix.values, 0, nozzle_nums)));
// Extract purging volumes for each extruder pair:
std::vector<std::vector<float>> wipe_volumes;
for (unsigned int i = 0; i < number_of_extruders; ++i)
wipe_volumes.push_back(std::vector<float>(flush_matrix.begin() + i * number_of_extruders, flush_matrix.begin() + (i + 1) * number_of_extruders));
// BBS: priming logic is removed, so get the initial extruder by first_extruder()
unsigned int current_extruder_id = m_wipe_tower_data.tool_ordering.first_extruder();
for (auto &layer_tools : m_wipe_tower_data.tool_ordering.layer_tools()) { // for all layers
if (!layer_tools.has_wipe_tower) continue;
bool first_layer = &layer_tools == &m_wipe_tower_data.tool_ordering.front();
wipe_tower.plan_toolchange((float)layer_tools.print_z, (float)layer_tools.wipe_tower_layer_height, current_extruder_id, current_extruder_id);
for (const auto extruder_id : layer_tools.extruders) {
// BBS: priming logic is removed, so no need to do toolchange for first extruder
if (/*(first_layer && extruder_id == m_wipe_tower_data.tool_ordering.all_extruders().back()) || */extruder_id != current_extruder_id) {
float volume_to_purge = wipe_volumes[current_extruder_id][extruder_id];
volume_to_purge *= m_config.flush_multiplier.get_at(0);
// Not all of that can be used for infill purging:
//volume_to_purge -= (float)m_config.filament_minimal_purge_on_wipe_tower.get_at(extruder_id);
// try to assign some infills/objects for the wiping:
volume_to_purge = layer_tools.wiping_extrusions().mark_wiping_extrusions(*this, current_extruder_id, extruder_id, volume_to_purge);
// add back the minimal amount toforce on the wipe tower:
//volume_to_purge += (float)m_config.filament_minimal_purge_on_wipe_tower.get_at(extruder_id);
// request a toolchange at the wipe tower with at least volume_to_wipe purging amount
wipe_tower.plan_toolchange((float)layer_tools.print_z, (float)layer_tools.wipe_tower_layer_height,
current_extruder_id, extruder_id, m_config.prime_volume, volume_to_purge);
current_extruder_id = extruder_id;
}
}
layer_tools.wiping_extrusions().ensure_perimeters_infills_order(*this);
// if enable timelapse, slice all layer
if (enable_timelapse_print()) {
if (layer_tools.wipe_tower_partitions == 0)
wipe_tower.set_last_layer_extruder_fill(false);
continue;
}
if (&layer_tools == &m_wipe_tower_data.tool_ordering.back() || (&layer_tools + 1)->wipe_tower_partitions == 0)
break;
}
}
}
// Generate the wipe tower layers.
m_wipe_tower_data.tool_changes.reserve(m_wipe_tower_data.tool_ordering.layer_tools().size());

7
src/libslic3r/PrintConfig.cpp
View File

@ -1464,6 +1464,13 @@ void PrintConfigDef::init_fff_params()
def->mode = comAdvanced;
def->set_default_value(new ConfigOptionFloat(68));
def = this->add("grab_length",coFloats);
def->label = L("Grab length");
def->sidetext = L("mm");
def->min = 0;
def->mode = comDevelop;
def->set_default_value(new ConfigOptionFloats({0}));
def = this->add("extruder_colour", coStrings);
def->label = L("Extruder Color");
def->tooltip = L("Only used as a visual help on UI");

1
src/libslic3r/PrintConfig.hpp
View File

@ -1174,6 +1174,7 @@ PRINT_CONFIG_CLASS_DERIVED_DEFINE(
((ConfigOptionBool, independent_support_layer_height))
((ConfigOptionBool, exclude_object))
((ConfigOptionPercents, filament_shrink))
((ConfigOptionFloats, grab_length))
)
// This object is mapped to Perl as Slic3r::Config::Full.