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When the support extruders are set to 0, support is printed with the current material without a tool change.

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A fix of support path generator.
This commit is contained in:
bubnikv 2017-01-30 19:56:46 +01:00
parent 4e90ae9a28
commit 4ab972b87a
7 changed files with 77 additions and 53 deletions
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42
xs/src/libslic3r/SupportMaterial.cpp
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@ -150,6 +150,7 @@ PrintObjectSupportMaterial::PrintObjectSupportMaterial(const PrintObject *object
frSupportMaterial,
// The width parameter accepted by new_from_config_width is of type ConfigOptionFloatOrPercent, the Flow class takes care of the percent to value substitution.
(object->config.support_material_extrusion_width.value > 0) ? object->config.support_material_extrusion_width : object->config.extrusion_width,
// if object->config.support_material_extruder == 0 (which means to not trigger tool change, but use the current extruder instead), get_at will return the 0th component.
float(object->print()->config.nozzle_diameter.get_at(object->config.support_material_extruder-1)),
float(slicing_params.layer_height),
false)),
@ -157,6 +158,7 @@ PrintObjectSupportMaterial::PrintObjectSupportMaterial(const PrintObject *object
frSupportMaterialInterface,
// The width parameter accepted by new_from_config_width is of type ConfigOptionFloatOrPercent, the Flow class takes care of the percent to value substitution.
(object->config.support_material_extrusion_width > 0) ? object->config.support_material_extrusion_width : object->config.extrusion_width,
// if object->config.support_material_interface_extruder == 0 (which means to not trigger tool change, but use the current extruder instead), get_at will return the 0th component.
float(object->print()->config.nozzle_diameter.get_at(object->config.support_material_interface_extruder-1)),
float(slicing_params.layer_height),
false)),
@ -636,7 +638,7 @@ PrintObjectSupportMaterial::MyLayersPtr PrintObjectSupportMaterial::top_contact_
#ifdef SLIC3R_DEBUG
Slic3r::SVG::export_expolygons(
debug_out_path("support-top-contacts-filtered-run%d-layer%d-region%d.svg", iRun, layer_id, it_layerm - layer.regions.begin()),
debug_out_path("support-top-contacts-filtered-run%d-layer%d-region%d-z%f.svg", iRun, layer_id, it_layerm - layer.regions.begin(), layer.print_z),
union_ex(diff_polygons, false));
#endif /* SLIC3R_DEBUG */
@ -758,7 +760,7 @@ PrintObjectSupportMaterial::MyLayersPtr PrintObjectSupportMaterial::top_contact_
bbox.align_to_grid(grid_resolution);
grid.set_bbox(bbox);
grid.create(contact_polygons, grid_resolution);
grid.calculate_sdf();
grid.calculate_sdf();
// Extract a bounding contour from the grid, trim by the object.
// 1) infill polygons, expand them by half the extrusion width + a tiny bit of extra.
new_layer.polygons = diff(
@ -772,6 +774,9 @@ PrintObjectSupportMaterial::MyLayersPtr PrintObjectSupportMaterial::top_contact_
false));
}
#endif
// Even after the contact layer was expanded into a grid, some of the contact islands may be too tiny to be extruded.
// Remove those tiny islands from new_layer.polygons and new_layer.contact_polygons.
// Store the overhang polygons.
// The overhang polygons are used in the path generator for planning of the contact loops.
@ -2182,33 +2187,20 @@ void PrintObjectSupportMaterial::generate_toolpaths(
MyLayerExtruded top_contact_layer;
MyLayerExtruded base_layer;
MyLayerExtruded interface_layer;
MyLayerExtrudedPtrs mylayers;
// Increment the layer indices to find a layer at support_layer.print_z.
for (; idx_layer_bottom_contact < bottom_contacts .size() && bottom_contacts [idx_layer_bottom_contact]->print_z < support_layer.print_z - EPSILON; ++ idx_layer_bottom_contact) ;
for (; idx_layer_top_contact < top_contacts .size() && top_contacts [idx_layer_top_contact ]->print_z < support_layer.print_z - EPSILON; ++ idx_layer_top_contact ) ;
for (; idx_layer_intermediate < intermediate_layers.size() && intermediate_layers[idx_layer_intermediate ]->print_z < support_layer.print_z - EPSILON; ++ idx_layer_intermediate ) ;
for (; idx_layer_inteface < interface_layers .size() && interface_layers [idx_layer_inteface ]->print_z < support_layer.print_z - EPSILON; ++ idx_layer_inteface ) ;
// Copy polygons from the layers.
mylayers.reserve(4);
if (idx_layer_bottom_contact < bottom_contacts.size() && bottom_contacts[idx_layer_bottom_contact]->print_z < support_layer.print_z + EPSILON) {
if (idx_layer_bottom_contact < bottom_contacts.size() && bottom_contacts[idx_layer_bottom_contact]->print_z < support_layer.print_z + EPSILON)
bottom_contact_layer.layer = bottom_contacts[idx_layer_bottom_contact];
mylayers.push_back(&bottom_contact_layer);
}
if (idx_layer_top_contact < top_contacts.size() && top_contacts[idx_layer_top_contact]->print_z < support_layer.print_z + EPSILON) {
if (idx_layer_top_contact < top_contacts.size() && top_contacts[idx_layer_top_contact]->print_z < support_layer.print_z + EPSILON)
top_contact_layer.layer = top_contacts[idx_layer_top_contact];
mylayers.push_back(&top_contact_layer);
}
if (idx_layer_inteface < interface_layers.size() && interface_layers[idx_layer_inteface]->print_z < support_layer.print_z + EPSILON) {
if (idx_layer_inteface < interface_layers.size() && interface_layers[idx_layer_inteface]->print_z < support_layer.print_z + EPSILON)
interface_layer.layer = interface_layers[idx_layer_inteface];
mylayers.push_back(&interface_layer);
}
if (idx_layer_intermediate < intermediate_layers.size() && intermediate_layers[idx_layer_intermediate]->print_z < support_layer.print_z + EPSILON) {
if (idx_layer_intermediate < intermediate_layers.size() && intermediate_layers[idx_layer_intermediate]->print_z < support_layer.print_z + EPSILON)
base_layer.layer = intermediate_layers[idx_layer_intermediate];
mylayers.push_back(&base_layer);
}
// Sort the layers with the same print_z coordinate by their heights, thickest first.
std::sort(mylayers.begin(), mylayers.end(), [](const MyLayerExtruded *p1, const MyLayerExtruded *p2) { return p1->layer->height > p2->layer->height; });
if (m_object_config->support_material_interface_layers == 0) {
// If no interface layers were requested, we treat the contact layer exactly as a generic base layer.
@ -2316,6 +2308,18 @@ void PrintObjectSupportMaterial::generate_toolpaths(
erSupportMaterial, flow);
}
MyLayerExtrudedPtrs mylayers;
mylayers.reserve(4);
if (! bottom_contact_layer.empty())
mylayers.push_back(&bottom_contact_layer);
if (! top_contact_layer.empty())
mylayers.push_back(&top_contact_layer);
if (! interface_layer.empty())
mylayers.push_back(&interface_layer);
if (! base_layer.empty())
mylayers.push_back(&base_layer);
// Sort the layers with the same print_z coordinate by their heights, thickest first.
std::sort(mylayers.begin(), mylayers.end(), [](const MyLayerExtruded *p1, const MyLayerExtruded *p2) { return p1->layer->height > p2->layer->height; });
// Collect the support areas with this print_z into islands, as there is no need
// for retraction over these islands.
Polygons polys;