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ENH: support tpu for multi_extruder

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jira: none
Change-Id: I556804aadac00406e7214b86f7925170a90c55ce
(cherry picked from commit ede9f90a792f3f39e82916543efaf187ce80d66c)
This commit is contained in:
zhimin.zeng 2024-09-04 09:38:16 +08:00 • committed by Noisyfox
parent 011f0d7d0c
commit 0ff33f8f7e
6 changed files with 193 additions and 37 deletions
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139
src/libslic3r/GCode/WipeTower.cpp
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@ -623,7 +623,8 @@ WipeTower::WipeTower(const PrintConfig& config, int plate_idx, Vec3d plate_origi
//wipe_volumes(flush_matrix)
m_wipe_volume(prime_volume),
m_enable_timelapse_print(config.timelapse_type.value == TimelapseType::tlSmooth),
m_nozzle_change_length(config.extruder_change_length.get_at(0))
m_nozzle_change_length(config.extruder_change_length.get_at(0)),
m_is_multi_extruder(config.nozzle_diameter.size() > 1)
{
// Read absolute value of first layer speed, if given as percentage,
// it is taken over following default. Speeds from config are not
@ -838,7 +839,37 @@ WipeTower::ToolChangeResult WipeTower::tool_change(size_t tool, bool extrude_per
// BBS
//writer.travel(writer.x(), writer.y()-m_perimeter_width); // cooling and loading were done a bit down the road
// ensure travel to initial_positoin
if (m_is_multi_extruder && is_tpu_filament(tool)) {
float dy = 2 * m_perimeter_width;
float nozzle_change_speed = 60.0f * m_filpar[tool].max_e_speed / m_extrusion_flow;
nozzle_change_speed *= 0.25;
const float &xl = cleaning_box.ld.x();
const float &xr = cleaning_box.rd.x();
Vec2f start_pos = m_nozzle_change_result.start_pos + Vec2f(0, m_perimeter_width);
bool left_to_right = true;
double tpu_travel_length = 5;
double e_flow = extrusion_flow(0.2);
double length = tpu_travel_length / e_flow;
int tpu_line_count = length / (m_wipe_tower_width - 2 * m_perimeter_width) + 1;
writer.travel(start_pos);
for (int i = 0; true; ++i) {
if (left_to_right)
writer.travel(xr - m_perimeter_width, writer.y(), nozzle_change_speed);
else
writer.travel(xl + m_perimeter_width, writer.y(), nozzle_change_speed);
if (i == tpu_line_count - 1)
break;
writer.travel(writer.x(), writer.y() + dy);
left_to_right = !left_to_right;
}
}
{
writer.travel(initial_position - Vec2f(0.5, 0.5));
writer.travel(initial_position);
@ -904,19 +935,22 @@ WipeTower::ToolChangeResult WipeTower::tool_change(size_t tool, bool extrude_per
WipeTower::NozzleChangeResult WipeTower::nozzle_change(int old_filament_id, int new_filament_id)
{
float wipe_depth = 0.f;
float wipe_length = 0.f;
float purge_volume = 0.f;
int nozzle_change_line_count = 0;
float wipe_depth = 0.f;
float wipe_length = 0.f;
float purge_volume = 0.f;
int nozzle_change_line_count = 0;
// Finds this toolchange info
if (new_filament_id != (unsigned int) (-1)) {
for (const auto &b : m_layer_info->tool_changes)
if (b.new_tool == new_filament_id) {
wipe_length = b.wipe_length;
wipe_depth = b.required_depth;
purge_volume = b.purge_volume;
nozzle_change_line_count = (b.nozzle_change_depth + WT_EPSILON) / m_perimeter_width;
wipe_length = b.wipe_length;
wipe_depth = b.required_depth;
purge_volume = b.purge_volume;
if (has_tpu_filament())
nozzle_change_line_count = ((b.nozzle_change_depth + WT_EPSILON) / m_perimeter_width + 1) / 2;
else
nozzle_change_line_count = (b.nozzle_change_depth + WT_EPSILON) / m_perimeter_width;
break;
}
} else {
@ -924,7 +958,7 @@ WipeTower::NozzleChangeResult WipeTower::nozzle_change(int old_filament_id, int
}
float nozzle_change_speed = 60.0f * m_filpar[m_current_tool].max_e_speed / m_extrusion_flow;
if (m_filpar[m_current_tool].material == "TPU") {
if (is_tpu_filament(m_current_tool)) {
nozzle_change_speed *= 0.25;
}
@ -939,8 +973,7 @@ WipeTower::NozzleChangeResult WipeTower::nozzle_change(int old_filament_id, int
writer.speed_override_backup();
writer.speed_override(100);
box_coordinates cleaning_box(Vec2f(m_perimeter_width, m_perimeter_width),
m_wipe_tower_width - 2 * m_perimeter_width,
box_coordinates cleaning_box(Vec2f(m_perimeter_width, m_perimeter_width), m_wipe_tower_width - 2 * m_perimeter_width,
(new_filament_id != (unsigned int) (-1) ? wipe_depth + m_depth_traversed - m_perimeter_width : m_wipe_tower_depth - m_perimeter_width));
Vec2f initial_position = cleaning_box.ld + Vec2f(0.f, m_depth_traversed);
@ -952,7 +985,9 @@ WipeTower::NozzleChangeResult WipeTower::nozzle_change(int old_filament_id, int
const float &xl = cleaning_box.ld.x();
const float &xr = cleaning_box.rd.x();
float dy = m_layer_info->extra_spacing * m_perimeter_width;
float dy = m_layer_info->extra_spacing * m_perimeter_width;
if (has_tpu_filament())
dy = 2 * m_perimeter_width;
float start_y = writer.y();
@ -979,35 +1014,60 @@ WipeTower::NozzleChangeResult WipeTower::nozzle_change(int old_filament_id, int
writer.set_extrusion_flow(m_extrusion_flow); // Reset the extrusion flow.
m_depth_traversed += (nozzle_change_line_count) * dy;
m_depth_traversed += (nozzle_change_line_count - 1) *dy + m_perimeter_width;
auto float_to_string_with_precision = [](float value, int precision) {
std::ostringstream out;
out << std::fixed << std::setprecision(precision) << value;
return out.str();
};
float wipe_distance = 2;
Vec2f wipe_pos = writer.pos();
if (m_left_to_right) {
wipe_pos.x() -= wipe_distance;
if (is_tpu_filament(m_current_tool))
{
bool left_to_right = !m_left_to_right;
double tpu_travel_length = 5;
double e_flow = extrusion_flow(0.2);
double length = tpu_travel_length / e_flow;
int tpu_line_count = length / (m_wipe_tower_width - 2 * m_perimeter_width) + 1;
writer.travel(writer.x(), writer.y() - m_perimeter_width);
for (int i = 0; true; ++i) {
if (left_to_right)
writer.travel(xr - m_perimeter_width, writer.y(), nozzle_change_speed);
else
writer.travel(xl + m_perimeter_width, writer.y(), nozzle_change_speed);
if (i == tpu_line_count - 1)
break;
writer.travel(writer.x(), writer.y() - dy);
left_to_right = !left_to_right;
}
}
else {
wipe_pos.x() += wipe_distance;
}
writer.append("; WIPE_START\n");
writer.extrude_explicit(wipe_pos, -2);
writer.append("; WIPE_END\n");
auto float_to_string_with_precision = [](float value, int precision) {
std::ostringstream out;
out << std::fixed << std::setprecision(precision) << value;
return out.str();
};
std::string lift_gcode = "G2 Z" + float_to_string_with_precision(m_z_pos + 0.4, 3) + " I0.86 J0.86 P1 F10000\n";
writer.append(lift_gcode);
float wipe_distance = 2;
Vec2f wipe_pos = writer.pos();
if (m_left_to_right) {
wipe_pos.x() -= wipe_distance;
} else {
wipe_pos.x() += wipe_distance;
}
writer.append("; WIPE_START\n");
writer.extrude_explicit(wipe_pos, -2);
writer.append("; WIPE_END\n");
std::string lift_gcode = "G2 Z" + float_to_string_with_precision(m_z_pos + 0.4, 3) + " I0.86 J0.86 P1 F10000\n";
writer.append(lift_gcode);
}
writer.append("; Nozzle change end\n");
NozzleChangeResult result;
result.start_pos = writer.start_pos_rotated();
result.end_pos = writer.pos();
result.gcode = std::move(writer.gcode());
result.start_pos = initial_position;
result.end_pos = writer.pos();
result.gcode = std::move(writer.gcode());
return result;
}
@ -1572,7 +1632,10 @@ void WipeTower::plan_toolchange(float z_par, float layer_height_par, unsigned in
double e_flow = extrusion_flow(0.2);
double length = m_nozzle_change_length / e_flow;
int nozzle_change_line_count = length / (m_wipe_tower_width - m_perimeter_width) + 1;
nozzle_change_depth = nozzle_change_line_count * m_perimeter_width;
if (has_tpu_filament())
nozzle_change_depth = (2 * nozzle_change_line_count - 1) * m_perimeter_width;
else
nozzle_change_depth = nozzle_change_line_count * m_perimeter_width;
depth += nozzle_change_depth;
}
WipeTowerInfo::ToolChange tool_change = WipeTowerInfo::ToolChange(old_tool, new_tool, depth, 0.f, 0.f, wipe_volume, length_to_extrude, purge_volume);
@ -1627,7 +1690,7 @@ void WipeTower::plan_tower()
if (m_enable_timelapse_print && max_depth < EPSILON)
max_depth = min_wipe_tower_depth;
if (max_depth + EPSILON < min_wipe_tower_depth)
if (max_depth + EPSILON < min_wipe_tower_depth && !has_tpu_filament())
m_extra_spacing = min_wipe_tower_depth / max_depth;
else
m_extra_spacing = 1.f;
@ -1730,6 +1793,10 @@ void WipeTower::save_on_last_wipe()
}
}
bool WipeTower::is_tpu_filament(int filament_id) const
{
return m_filpar[filament_id].material == "TPU";
}
// BBS: consider both soluable and support properties
// Return index of first toolchange that switches to non-soluble and non-support extruder