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Fix of

Browse source 
"Multimaterial printer switches filament at the wrong time during a print"
https://github.com/prusa3d/Slic3r/issues/607

There was a single layer between the raft top and the object first layer
missing on the wipe tower, and after this missing layer all the tool
changes were shifted by one layer, meaning two color print had the colors
switched.
This commit is contained in:
bubnikv 2017-12-11 17:19:55 +01:00
parent 1938828520
commit 61e6f23ed2
7 changed files with 67 additions and 43 deletions
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37
xs/src/libslic3r/Print.cpp
View file

@ -978,6 +978,43 @@ void Print::_make_wipe_tower()
// Don't generate any wipe tower.
return;
// Check whether there are any layers in m_tool_ordering, which are marked with has_wipe_tower,
// they print neither object, nor support. These layers are above the raft and below the object, and they
// shall be added to the support layers to be printed.
// see https://github.com/prusa3d/Slic3r/issues/607
{
size_t idx_begin = size_t(-1);
size_t idx_end = m_tool_ordering.layer_tools().size();
// Find the first wipe tower layer, which does not have a counterpart in an object or a support layer.
for (size_t i = 0; i < idx_end; ++ i) {
const ToolOrdering::LayerTools &lt = m_tool_ordering.layer_tools()[i];
if (lt.has_wipe_tower && ! lt.has_object && ! lt.has_support) {
idx_begin = i;
break;
}
}
if (idx_begin != size_t(-1)) {
// Find the position in this->objects.first()->support_layers to insert these new support layers.
double wipe_tower_new_layer_print_z_first = m_tool_ordering.layer_tools()[idx_begin].print_z;
SupportLayerPtrs::iterator it_layer = this->objects.front()->support_layers.begin();
for (; (*it_layer)->print_z - EPSILON < wipe_tower_new_layer_print_z_first; ++ it_layer) ;
// Find the stopper of the sequence of wipe tower layers, which do not have a counterpart in an object or a support layer.
for (size_t i = idx_begin; i < idx_end; ++ i) {
ToolOrdering::LayerTools &lt = const_cast<ToolOrdering::LayerTools&>(m_tool_ordering.layer_tools()[i]);
if (! (lt.has_wipe_tower && ! lt.has_object && ! lt.has_support))
break;
lt.has_support = true;
// Insert the new support layer.
//FIXME the support layer ID is duplicated, but Vojtech hopes it is not being used anywhere anyway.
double height = lt.print_z - m_tool_ordering.layer_tools()[i-1].print_z;
auto *new_layer = new SupportLayer((*it_layer)->id(), this->objects.front(),
height, lt.print_z, lt.print_z - 0.5 * height);
it_layer = this->objects.front()->support_layers.insert(it_layer, new_layer);
++ it_layer;
}
}
}
// Initialize the wipe tower.
WipeTowerPrusaMM wipe_tower(
float(this->config.wipe_tower_x.value), float(this->config.wipe_tower_y.value),