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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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8
lib/Slic3r/Print/GCode.pm
View File

@ -480,7 +480,9 @@ sub process_layer {
# and also because we avoid travelling on other things when printing it
if ($layer->isa('Slic3r::Layer::Support')) {
if ($layer->support_interface_fills->count > 0) {
$gcode .= $self->_gcodegen->set_extruder($object->config->support_material_interface_extruder-1);
# Don't change extruder if the extruder is set to 0. Use the current extruder instead.
$gcode .= $self->_gcodegen->set_extruder($object->config->support_material_interface_extruder-1)
if ($object->config->support_material_interface_extruder > 0);
for my $path (@{$layer->support_interface_fills->chained_path_from($self->_gcodegen->last_pos, 0)}) {
if ($path->isa('Slic3r::ExtrusionMultiPath')) {
$gcode .= $self->_gcodegen->extrude_multipath($path, 'support material interface', $object->config->get_abs_value('support_material_interface_speed'));
@ -490,7 +492,9 @@ sub process_layer {
}
}
if ($layer->support_fills->count > 0) {
$gcode .= $self->_gcodegen->set_extruder($object->config->support_material_extruder-1);
# Don't change extruder if the extruder is set to 0. Use the current extruder instead.
$gcode .= $self->_gcodegen->set_extruder($object->config->support_material_extruder-1)
if ($object->config->support_material_extruder > 0);
for my $path (@{$layer->support_fills->chained_path_from($self->_gcodegen->last_pos, 0)}) {
if ($path->isa('Slic3r::ExtrusionMultiPath')) {
$gcode .= $self->_gcodegen->extrude_multipath($path, 'support material', $object->config->get_abs_value('support_material_speed'));

27
lib/Slic3r/Print/Object.pm
View File

@ -150,6 +150,7 @@ sub prepare_infill {
# Decide what surfaces are to be filled.
# Here the S_TYPE_TOP / S_TYPE_BOTTOMBRIDGE / S_TYPE_BOTTOM infill is turned to just S_TYPE_INTERNAL if zero top / bottom infill layers are configured.
# Also tiny S_TYPE_INTERNAL surfaces are turned to S_TYPE_INTERNAL_SOLID.
# BOOST_LOG_TRIVIAL(info) << "Preparing fill surfaces...";
$_->prepare_fill_surfaces for map @{$_->regions}, @{$self->layers};
# this will detect bridges and reverse bridges
@ -262,28 +263,8 @@ sub generate_support_material {
if (($self->config->support_material || $self->config->raft_layers > 0) && scalar(@{$self->layers}) > 1) {
$self->print->status_cb->(85, "Generating support material");
if (0) {
# Old supports, Perl implementation.
my $first_layer_flow = Slic3r::Flow->new_from_width(
width => ($self->print->config->first_layer_extrusion_width || $self->config->support_material_extrusion_width),
role => FLOW_ROLE_SUPPORT_MATERIAL,
nozzle_diameter => $self->print->config->nozzle_diameter->[ $self->config->support_material_extruder-1 ]
// $self->print->config->nozzle_diameter->[0],
layer_height => $self->config->get_abs_value('first_layer_height'),
bridge_flow_ratio => 0,
);
my $support_material = Slic3r::Print::SupportMaterial->new(
print_config => $self->print->config,
object_config => $self->config,
first_layer_flow => $first_layer_flow,
flow => $self->support_material_flow,
interface_flow => $self->support_material_flow(FLOW_ROLE_SUPPORT_MATERIAL_INTERFACE),
);
$support_material->generate($self);
} else {
# New supports, C++ implementation.
$self->_generate_support_material;
}
# New supports, C++ implementation.
$self->_generate_support_material;
}
$self->set_step_done(STEP_SUPPORTMATERIAL);
@ -727,6 +708,8 @@ sub _simplify_slices {
}
}
# Used by t/support.t and by GCode.pm to export support line width as a comment.
# To be removed.
sub support_material_flow {
my ($self, $role) = @_;

6
slic3r.pl
View File

@ -540,9 +540,11 @@ $j
--infill-extruder Extruder to use for infill (1+, default: $config->{infill_extruder})
--solid-infill-extruder Extruder to use for solid infill (1+, default: $config->{solid_infill_extruder})
--support-material-extruder
Extruder to use for support material, raft and skirt (1+, default: $config->{support_material_extruder})
Extruder to use for support material, raft and skirt
(1+, 0 to use the current extruder to minimize tool changes, default: $config->{support_material_extruder})
--support-material-interface-extruder
Extruder to use for support material interface (1+, default: $config->{support_material_interface_extruder})
Extruder to use for support material interface
(1+, 0 to use the current extruder to minimize tool changes, default: $config->{support_material_interface_extruder})
--ooze-prevention Drop temperature and park extruders outside a full skirt for automatic wiping
(default: no)
--standby-temperature-delta

34
xs/src/libslic3r/Print.cpp
View File

@ -323,13 +323,26 @@ std::set<size_t>
Print::support_material_extruders() const
{
std::set<size_t> extruders;
bool support_uses_current_extruder = false;
FOREACH_OBJECT(this, object) {
if ((*object)->has_support_material()) {
extruders.insert((*object)->config.support_material_extruder - 1);
extruders.insert((*object)->config.support_material_interface_extruder - 1);
if ((*object)->config.support_material_extruder == 0)
support_uses_current_extruder = true;
else
extruders.insert((*object)->config.support_material_extruder - 1);
if ((*object)->config.support_material_interface_extruder == 0)
support_uses_current_extruder = true;
else
extruders.insert((*object)->config.support_material_interface_extruder - 1);
}
}
if (support_uses_current_extruder) {
// Add all object extruders to the support extruders as it is not know which one will be used to print supports.
std::set<size_t> object_extruders = this->object_extruders();
extruders.insert(object_extruders.begin(), object_extruders.end());
}
return extruders;
}
@ -653,6 +666,17 @@ Print::validate() const
FOREACH_OBJECT(this, i_object) {
PrintObject* object = *i_object;
if ((object->config.support_material_extruder == -1 || object->config.support_material_interface_extruder == -1) &&
(object->config.raft_layers > 0 || object->config.support_material.value)) {
// The object has some form of support and either support_material_extruder or support_material_interface_extruder
// will be printed with the current tool without a forced tool change. Play safe, assert that all object nozzles
// are of the same diameter.
if (nozzle_diameters.size() > 1)
return "Printing with multiple extruders of differing nozzle diameters. "
"If support is to be printed with the current extruder (support_material_extruder == 0 or support_material_interface_extruder == 0), ",
"all nozzles have to be of the same diameter.";
}
// validate first_layer_height
double first_layer_height = object->config.get_abs_value("first_layer_height");
@ -662,7 +686,9 @@ Print::validate() const
size_t first_layer_extruder = object->config.raft_layers == 1
? object->config.support_material_interface_extruder-1
: object->config.support_material_extruder-1;
first_layer_min_nozzle_diameter = this->config.nozzle_diameter.get_at(first_layer_extruder);
first_layer_min_nozzle_diameter = (first_layer_extruder == size_t(-1)) ?
min_nozzle_diameter :
this->config.nozzle_diameter.get_at(first_layer_extruder);
} else {
// if we don't have raft layers, any nozzle diameter is potentially used in first layer
first_layer_min_nozzle_diameter = min_nozzle_diameter;

8
xs/src/libslic3r/PrintConfig.cpp
View File

@ -1176,9 +1176,9 @@ PrintConfigDef::PrintConfigDef()
def = this->add("support_material_extruder", coInt);
def->label = "Support material/raft/skirt extruder";
def->category = "Extruders";
def->tooltip = "The extruder to use when printing support material, raft and skirt.";
def->tooltip = "The extruder to use when printing support material, raft and skirt (1+, 0 to use the current extruder to minimize tool changes).";
def->cli = "support-material-extruder=i";
def->min = 1;
def->min = 0;
def->default_value = new ConfigOptionInt(1);
def = this->add("support_material_extrusion_width", coFloatOrPercent);
@ -1199,9 +1199,9 @@ PrintConfigDef::PrintConfigDef()
def = this->add("support_material_interface_extruder", coInt);
def->label = "Support material/raft interface extruder";
def->category = "Extruders";
def->tooltip = "The extruder to use when printing support material interface. This affects raft too.";
def->tooltip = "The extruder to use when printing support material interface (1+, 0 to use the current extruder to minimize tool changes). This affects raft too.";
def->cli = "support-material-interface-extruder=i";
def->min = 1;
def->min = 0;
def->default_value = new ConfigOptionInt(1);
def = this->add("support_material_interface_layers", coInt);

5
xs/src/libslic3r/Slicing.cpp
View File

@ -27,6 +27,11 @@ SlicingParameters SlicingParameters::create_from_config(
coordf_t first_layer_height = (object_config.first_layer_height.value <= 0) ?
object_config.layer_height.value :
object_config.first_layer_height.get_abs_value(object_config.layer_height.value);
// If object_config.support_material_extruder == 0 resp. object_config.support_material_interface_extruder == 0,
// print_config.nozzle_diameter.get_at(size_t(-1)) returns the 0th nozzle diameter,
// which is consistent with the requirement that if support_material_extruder == 0 resp. support_material_interface_extruder == 0,
// support will not trigger tool change, but it will use the current nozzle instead.
// In that case all the nozzles have to be of the same diameter.
coordf_t support_material_extruder_dmr = print_config.nozzle_diameter.get_at(object_config.support_material_extruder.value - 1);
coordf_t support_material_interface_extruder_dmr = print_config.nozzle_diameter.get_at(object_config.support_material_interface_extruder.value - 1);
bool soluble_interface = object_config.support_material_contact_distance.value == 0.;

42
xs/src/libslic3r/SupportMaterial.cpp
View File

@ -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;