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FIX: missing support layers at raft gap

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jira: none
Change-Id: I9a7f34c148ee0e228cf2e8e18c85136253f354ad
(cherry picked from commit 615751538a65cdaeb8e398dcc941971c98ec11b8)
(cherry picked from commit da7f1439ce78d92326726be961528d2755d9a6e2)
This commit is contained in:
Arthur 2024-05-24 18:23:29 +08:00 • committed by Noisyfox
parent fa11957c17
commit 0cfa5f47fe
2 changed files with 38 additions and 12 deletions
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48
src/libslic3r/Support/TreeSupport.cpp
View file

@ -1143,6 +1143,17 @@ void TreeSupport::create_tree_support_layers()
raft_slice_z = raft_print_z - height / 2;
m_object->add_tree_support_layer(layer_id++, height, raft_print_z, raft_slice_z);
}
// Layers between the raft contacts and bottom of the object.
double dist_to_go = m_slicing_params.object_print_z_min - raft_print_z;
auto nsteps = int(ceil(dist_to_go / m_slicing_params.max_suport_layer_height));
double height = dist_to_go / nsteps;
for (int i = 0; i < nsteps; ++i) {
raft_print_z += height;
raft_slice_z = raft_print_z - height / 2;
m_object->add_tree_support_layer(layer_id++, height, raft_print_z, raft_slice_z);
}
m_raft_layers = layer_id;
}
for (Layer *layer : m_object->layers()) {
@ -1242,7 +1253,7 @@ static void make_perimeter_and_inner_brim(ExtrusionEntitiesPtr &dst, const ExPol
_make_loops(dst, support_area_new, role, wall_count, flow);
}
static void make_perimeter_and_infill(ExtrusionEntitiesPtr& dst, const Print& print, const ExPolygon& support_area, size_t wall_count, const Flow& flow, ExtrusionRole role, Fill* filler_support, double support_density, bool infill_first=true)
static void make_perimeter_and_infill(ExtrusionEntitiesPtr& dst, const ExPolygon& support_area, size_t wall_count, const Flow& flow, ExtrusionRole role, Fill* filler_support, double support_density, bool infill_first=true)
{
Polygons loops;
ExPolygons support_area_new = offset_ex(support_area, -0.5f * float(flow.scaled_spacing()), jtSquare);
@ -1349,7 +1360,8 @@ void TreeSupport::generate_toolpaths()
raft_areas = std::move(offset_ex(raft_areas, scale_(object_config.raft_first_layer_expansion)));
for (size_t layer_nr = 0; layer_nr < m_slicing_params.base_raft_layers; layer_nr++) {
size_t layer_nr = 0;
for (; layer_nr < m_slicing_params.base_raft_layers; layer_nr++) {
SupportLayer *ts_layer = m_object->get_support_layer(layer_nr);
coordf_t expand_offset = (layer_nr == 0 ? m_object_config->raft_first_layer_expansion.value : 0.);
auto raft_areas1 = offset_ex(raft_areas, scale_(expand_offset));
@ -1384,10 +1396,13 @@ void TreeSupport::generate_toolpaths()
first_non_raft_base.emplace_back(*area_group.area);
}
}
first_non_raft_base = offset_ex(first_non_raft_base, support_extrusion_width);
ExPolygons raft_base_areas = intersection_ex(raft_areas, first_non_raft_base);
ExPolygons raft_interface_areas = diff_ex(raft_areas, raft_base_areas);
for (size_t layer_nr = m_slicing_params.base_raft_layers;
// raft interfaces
for (layer_nr = m_slicing_params.base_raft_layers;
layer_nr < m_slicing_params.base_raft_layers + m_slicing_params.interface_raft_layers;
layer_nr++)
{
@ -1410,6 +1425,17 @@ void TreeSupport::generate_toolpaths()
filler_interface, fill_params, erSupportMaterial, support_flow);
}
// layers between raft and object
for (; layer_nr < m_raft_layers; layer_nr++) {
SupportLayer *ts_layer = m_object->get_support_layer(layer_nr);
Flow support_flow(support_extrusion_width, ts_layer->height, nozzle_diameter);
Fill* filler_raft = Fill::new_from_type(ipRectilinear);
filler_raft->angle = PI / 2;
filler_raft->spacing = support_flow.spacing();
for (auto& poly : first_non_raft_base)
make_perimeter_and_infill(ts_layer->support_fills.entities, poly, std::min(size_t(1), wall_count), support_flow, erSupportMaterial, filler_raft, interface_density, false);
}
if (m_object->support_layer_count() <= m_raft_layers)
return;
@ -1435,7 +1461,7 @@ void TreeSupport::generate_toolpaths()
SupportLayer* ts_layer = m_object->get_support_layer(layer_id);
Flow support_flow(support_extrusion_width, ts_layer->height, nozzle_diameter);
m_support_material_interface_flow = support_material_interface_flow(m_object, ts_layer->height); // update flow using real support layer height
Flow interface_flow = support_material_interface_flow(m_object, ts_layer->height); // update flow using real support layer height
coordf_t support_spacing = object_config.support_base_pattern_spacing.value + support_flow.spacing();
coordf_t support_density = std::min(1., support_flow.spacing() / support_spacing);
ts_layer->support_fills.no_sort = false;
@ -1464,10 +1490,10 @@ void TreeSupport::generate_toolpaths()
// roof_1st_layer
fill_params.density = interface_density;
// Note: spacing means the separation between two lines as if they are tightly extruded
filler_Roof1stLayer->spacing = m_support_material_interface_flow.spacing();
filler_Roof1stLayer->spacing = interface_flow.spacing();
// generate a perimeter first to support interface better
ExtrusionEntityCollection* temp_support_fills = new ExtrusionEntityCollection();
make_perimeter_and_infill(temp_support_fills->entities, *m_object->print(), poly, 1, m_support_material_interface_flow, erSupportMaterial,
make_perimeter_and_infill(temp_support_fills->entities, poly, 1, interface_flow, erSupportMaterial,
filler_Roof1stLayer.get(), interface_density, false);
temp_support_fills->no_sort = true; // make sure loops are first
if (!temp_support_fills->entities.empty())
@ -1477,13 +1503,13 @@ void TreeSupport::generate_toolpaths()
} else if (area_group.type == SupportLayer::FloorType) {
// floor_areas
fill_params.density = bottom_interface_density;
filler_interface->spacing = m_support_material_interface_flow.spacing();
filler_interface->spacing = interface_flow.spacing();
fill_expolygons_generate_paths(ts_layer->support_fills.entities, polys,
filler_interface.get(), fill_params, erSupportMaterialInterface, m_support_material_interface_flow);
filler_interface.get(), fill_params, erSupportMaterialInterface, interface_flow);
} else if (area_group.type == SupportLayer::RoofType) {
// roof_areas
fill_params.density = interface_density;
filler_interface->spacing = m_support_material_interface_flow.spacing();
filler_interface->spacing = interface_flow.spacing();
if (m_object_config->support_interface_pattern == smipGrid) {
filler_interface->angle = Geometry::deg2rad(object_config.support_angle.value);
fill_params.dont_sort = true;
@ -1492,7 +1518,7 @@ void TreeSupport::generate_toolpaths()
filler_interface->layer_id = area_group.interface_id;
fill_expolygons_generate_paths(ts_layer->support_fills.entities, polys, filler_interface.get(), fill_params, erSupportMaterialInterface,
m_support_material_interface_flow);
interface_flow);
}
else {
// base_areas
@ -1517,7 +1543,7 @@ void TreeSupport::generate_toolpaths()
// otherwise must draw 1 wall
// Don't need extra walls if we have infill. Extra walls may overlap with the infills.
size_t min_wall_count = offset(poly, -scale_(support_spacing * 1.5)).empty() ? 1 : 0;
make_perimeter_and_infill(ts_layer->support_fills.entities, *m_object->print(), poly, std::max(min_wall_count, wall_count), flow,
make_perimeter_and_infill(ts_layer->support_fills.entities, poly, std::max(min_wall_count, wall_count), flow,
erSupportMaterial, filler_support.get(), support_density);
}
else {

2
src/libslic3r/Support/TreeSupport.hpp
View file

@ -413,7 +413,7 @@ private:
SlicingParameters m_slicing_params;
// Various precomputed support parameters to be shared with external functions.
SupportParameters m_support_params;
size_t m_raft_layers = 0;
size_t m_raft_layers = 0; // number of raft layers, including raft base, raft interface, raft gap
size_t m_highest_overhang_layer = 0;
std::vector<std::vector<MinimumSpanningTree>> m_spanning_trees;
std::vector< std::unordered_map<Line, bool, LineHash>> m_mst_line_x_layer_contour_caches;