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Fixed planning of support interface layers with rafts and

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larger Z gap for supports than for the raft.
This commit is contained in:
Vojtech Bubnik 2021-10-18 16:59:32 +02:00
parent 76cbb7c17e
commit 5e735a59d0
1 changed files with 14 additions and 11 deletions
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25
src/libslic3r/SupportMaterial.cpp
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@ -1703,15 +1703,18 @@ static inline std::pair<PrintObjectSupportMaterial::MyLayer*, PrintObjectSupport
// Don't want to print a layer below the first layer height as it may not stick well. // Don't want to print a layer below the first layer height as it may not stick well.
//FIXME there may be a need for a single layer support, then one may decide to print it either as a bottom contact or a top contact //FIXME there may be a need for a single layer support, then one may decide to print it either as a bottom contact or a top contact
// and it may actually make sense to do it with a thinner layer than the first layer height. // and it may actually make sense to do it with a thinner layer than the first layer height.
const coordf_t min_print_z = slicing_params.raft_layers() > 1 ? slicing_params.raft_interface_top_z + support_layer_height_min + EPSILON : slicing_params.first_print_layer_height - EPSILON; if (print_z < slicing_params.first_print_layer_height - EPSILON) {
if (print_z < min_print_z) {
// This contact layer is below the first layer height, therefore not printable. Don't support this surface. // This contact layer is below the first layer height, therefore not printable. Don't support this surface.
return std::pair<PrintObjectSupportMaterial::MyLayer*, PrintObjectSupportMaterial::MyLayer*>(nullptr, nullptr); return std::pair<PrintObjectSupportMaterial::MyLayer*, PrintObjectSupportMaterial::MyLayer*>(nullptr, nullptr);
} else if (print_z < slicing_params.first_print_layer_height + EPSILON) { }
// Align the layer with the 1st layer height. const bool has_raft = slicing_params.raft_layers() > 1;
print_z = slicing_params.first_print_layer_height; const coordf_t min_print_z = has_raft ? slicing_params.raft_contact_top_z : slicing_params.first_print_layer_height;
bottom_z = 0; if (print_z < min_print_z + support_layer_height_min) {
height = slicing_params.first_print_layer_height; // Align the layer with the 1st layer height or the raft contact layer.
// With raft active, any contact layer below the raft_contact_top_z will be brought to raft_contact_top_z to extend the raft area.
print_z = min_print_z;
bottom_z = has_raft ? slicing_params.raft_interface_top_z : 0;
height = has_raft ? slicing_params.contact_raft_layer_height : min_print_z;
} else { } else {
// Don't know the height of the top contact layer yet. The top contact layer is printed with a normal flow and // Don't know the height of the top contact layer yet. The top contact layer is printed with a normal flow and
// its height will be set adaptively later on. // its height will be set adaptively later on.
@ -1727,9 +1730,9 @@ static inline std::pair<PrintObjectSupportMaterial::MyLayer*, PrintObjectSupport
coordf_t bridging_print_z = layer.print_z - bridging_height - slicing_params.gap_support_object; coordf_t bridging_print_z = layer.print_z - bridging_height - slicing_params.gap_support_object;
if (bridging_print_z >= min_print_z) { if (bridging_print_z >= min_print_z) {
// Not below the first layer height means this layer is printable. // Not below the first layer height means this layer is printable.
if (print_z < slicing_params.first_print_layer_height + EPSILON) { if (print_z < min_print_z + support_layer_height_min) {
// Align the layer with the 1st layer height. // Align the layer with the 1st layer height or the raft contact layer.
bridging_print_z = slicing_params.first_print_layer_height; bridging_print_z = min_print_z;
} }
if (bridging_print_z < print_z - EPSILON) { if (bridging_print_z < print_z - EPSILON) {
// Allocate the new layer. // Allocate the new layer.
@ -3108,7 +3111,7 @@ std::pair<PrintObjectSupportMaterial::MyLayersPtr, PrintObjectSupportMaterial::M
intermediate_layer.polygons); intermediate_layer.polygons);
if (! bottom.empty()) { if (! bottom.empty()) {
//FIXME Remove non-printable tiny islands, let them be printed using the base support. //FIXME Remove non-printable tiny islands, let them be printed using the base support.
//bottom = offset(offset_ex(std::move(bottom), - minimum_island_radius), minimum_island_radius); //bottom = opening(std::move(bottom), minimum_island_radius);
if (! bottom.empty()) { if (! bottom.empty()) {
MyLayer &layer_new = layer_allocate(layer_storage, layer_storage_mutex, type); MyLayer &layer_new = layer_allocate(layer_storage, layer_storage_mutex, type);
layer_new.polygons = std::move(bottom); layer_new.polygons = std::move(bottom);