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ENH: modify quick extrude to 2 perimeter width 

and use bridge flow for nozzlechange
jira: none

Change-Id: I9bda1b689d7139819607bace09354ef43d27a970
This commit is contained in:
jiangkai.zhao 2025-02-20 10:50:35 +08:00 committed by lane.wei
parent 679ec788e5
commit 147e7bdb50
1 changed files with 13 additions and 16 deletions
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29
src/libslic3r/GCode/WipeTower.cpp
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@ -1470,7 +1470,7 @@ void WipeTower::set_extruder(size_t idx, const PrintConfig& config)
m_filpar[idx].max_e_speed = (max_vol_speed / filament_area());
m_perimeter_width = nozzle_diameter * Width_To_Nozzle_Ratio; // all extruders are now assumed to have the same diameter
m_nozzle_change_perimeter_width = m_perimeter_width;
m_nozzle_change_perimeter_width = 2*m_perimeter_width;
// BBS: remove useless config
#if 0
if (m_semm) {
@ -2766,13 +2766,12 @@ WipeTower::NozzleChangeResult WipeTower::nozzle_change_new(int old_filament_id,
float nz_extrusion_flow = nozzle_change_extrusion_flow(m_layer_height);
float nozzle_change_speed = 60.0f * m_filpar[m_current_tool].max_e_speed / nz_extrusion_flow;
nozzle_change_speed = solid_infill ? 40.f * 60.f : nozzle_change_speed;
//float bridge_speed = 60.f * 50; // limit the bridge speed to 50 for nozzle change
//float nozzle_change_speed = is_first_layer() ? std::min(m_first_layer_speed * 60.f, 4800.f) : 4800.f;
nozzle_change_speed = solid_infill ? 40.f * 60.f : nozzle_change_speed;//If the contact layers belong to different categories, then reduce the speed.
if (is_tpu_filament(m_current_tool)) {
nozzle_change_speed *= 0.25;
}
//bridge_speed = nozzle_change_speed;
float bridge_speed = std::min(60.0f * m_filpar[m_current_tool].max_e_speed / nozzle_change_extrusion_flow(0.2), nozzle_change_speed); // limit the bridge speed by add flow
WipeTowerWriter writer(m_layer_height, m_nozzle_change_perimeter_width, m_gcode_flavor, m_filpar);
writer.set_extrusion_flow(nz_extrusion_flow)
@ -2801,26 +2800,24 @@ WipeTower::NozzleChangeResult WipeTower::nozzle_change_new(int old_filament_id,
nozzle_change_line_count = solid_infill ? std::numeric_limits<int>::max() : nozzle_change_line_count;
m_left_to_right = true;
int real_nozzle_change_line_count = 0;
bool need_change_flow = false;
for (int i = 0; true; ++i) {
#if 0
if (need_thick_bridge_flow(writer.pos().y())) {
writer.set_extrusion_flow(extrusion_flow(0.2));
nozzle_change_speed = 60.0f * m_filpar[m_current_tool].max_e_speed / extrusion_flow(0.2);
writer.set_extrusion_flow(nozzle_change_extrusion_flow(0.2));
need_change_flow = true;
} else {
writer.set_extrusion_flow(get_extrusion_flow());
nozzle_change_speed = 60.0f * m_filpar[m_current_tool].max_e_speed / get_extrusion_flow();
writer.set_extrusion_flow(nozzle_change_extrusion_flow(m_layer_height));
need_change_flow = false;
}
#endif
//bool need_change_flow = need_thick_bridge_flow(writer.y());
if (m_left_to_right)
writer.extrude(xr + wipe_tower_wall_infill_overlap * m_perimeter_width, writer.y(), /*need_change_flow ? bridge_speed :*/ nozzle_change_speed);
writer.extrude(xr + wipe_tower_wall_infill_overlap * m_perimeter_width, writer.y(), need_change_flow ? bridge_speed : nozzle_change_speed);
else
writer.extrude(xl - wipe_tower_wall_infill_overlap * m_perimeter_width, writer.y(), /*need_change_flow ? bridge_speed :*/ nozzle_change_speed);
writer.extrude(xl - wipe_tower_wall_infill_overlap * m_perimeter_width, writer.y(), need_change_flow ? bridge_speed : nozzle_change_speed);
real_nozzle_change_line_count++;
if (i == nozzle_change_line_count - 1)
break;
if ((writer.y() + dy - cleaning_box.ru.y()+(m_nozzle_change_perimeter_width+m_perimeter_width)/2) > (float)EPSILON) break;
writer.extrude(writer.x(), writer.y() + dy, nozzle_change_speed);
writer.extrude(writer.x(), writer.y() + dy, need_change_flow ? bridge_speed : nozzle_change_speed);
m_left_to_right = !m_left_to_right;
}
@ -4285,7 +4282,7 @@ bool WipeTower::get_floating_area(float &start_pos_y, float &end_pos_y) const {
}
bool WipeTower::need_thick_bridge_flow(float pos_y) const {
if (m_extrusion_flow >= extrusion_flow(0.2))
if (m_layer_height >= 0.2)
return false;
float y_min = 0., y_max = 0.;