3DPrinting/PrusaSlicer-NonPlainar
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Merge branch 'lm_low_wipe_tower'

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This commit is contained in:
Lukas Matena 2019-11-14 10:37:04 +01:00
commit 88514eeb0e
9 changed files with 68 additions and 17 deletions
src/libslic3r
GCode.cpp

54
src/libslic3r/GCode.cpp
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@ -285,7 +285,7 @@ static inline Point wipe_tower_point_to_object_point(GCode &gcodegen, const Vec2
return Point(scale_(wipe_tower_pt.x() - gcodegen.origin()(0)), scale_(wipe_tower_pt.y() - gcodegen.origin()(1)));
}
std::string WipeTowerIntegration::append_tcr(GCode &gcodegen, const WipeTower::ToolChangeResult &tcr, int new_extruder_id) const
std::string WipeTowerIntegration::append_tcr(GCode &gcodegen, const WipeTower::ToolChangeResult &tcr, int new_extruder_id, double z) const
{
if (new_extruder_id != -1 && new_extruder_id != tcr.new_tool)
throw std::invalid_argument("Error: WipeTowerIntegration::append_tcr was asked to do a toolchange it didn't expect.");
@ -321,6 +321,15 @@ std::string WipeTowerIntegration::append_tcr(GCode &gcodegen, const WipeTower::T
gcode += gcodegen.unretract();
}
double current_z = gcodegen.writer().get_position().z();
if (z == -1.) // in case no specific z was provided, print at current_z pos
z = current_z;
if (! is_approx(z, current_z)) {
gcode += gcodegen.writer().retract();
gcode += gcodegen.writer().travel_to_z(z, "Travel down to the last wipe tower layer.");
gcode += gcodegen.writer().unretract();
}
// Process the end filament gcode.
std::string end_filament_gcode_str;
@ -387,16 +396,23 @@ std::string WipeTowerIntegration::append_tcr(GCode &gcodegen, const WipeTower::T
// A phony move to the end position at the wipe tower.
gcodegen.writer().travel_to_xy(end_pos.cast<double>());
gcodegen.set_last_pos(wipe_tower_point_to_object_point(gcodegen, end_pos));
if (! is_approx(z, current_z)) {
gcode += gcodegen.writer().retract();
gcode += gcodegen.writer().travel_to_z(current_z, "Travel back up to the topmost object layer.");
gcode += gcodegen.writer().unretract();
}
// Prepare a future wipe.
gcodegen.m_wipe.path.points.clear();
if (new_extruder_id >= 0) {
// Start the wipe at the current position.
gcodegen.m_wipe.path.points.emplace_back(wipe_tower_point_to_object_point(gcodegen, end_pos));
// Wipe end point: Wipe direction away from the closer tower edge to the further tower edge.
gcodegen.m_wipe.path.points.emplace_back(wipe_tower_point_to_object_point(gcodegen,
Vec2f((std::abs(m_left - end_pos.x()) < std::abs(m_right - end_pos.x())) ? m_right : m_left,
end_pos.y())));
else {
// Prepare a future wipe.
gcodegen.m_wipe.path.points.clear();
if (new_extruder_id >= 0) {
// Start the wipe at the current position.
gcodegen.m_wipe.path.points.emplace_back(wipe_tower_point_to_object_point(gcodegen, end_pos));
// Wipe end point: Wipe direction away from the closer tower edge to the further tower edge.
gcodegen.m_wipe.path.points.emplace_back(wipe_tower_point_to_object_point(gcodegen,
Vec2f((std::abs(m_left - end_pos.x()) < std::abs(m_right - end_pos.x())) ? m_right : m_left,
end_pos.y())));
}
}
// Let the planner know we are traveling between objects.
@ -522,7 +538,23 @@ std::string WipeTowerIntegration::tool_change(GCode &gcodegen, int extruder_id,
if (m_layer_idx < (int)m_tool_changes.size()) {
if (! (size_t(m_tool_change_idx) < m_tool_changes[m_layer_idx].size()))
throw std::runtime_error("Wipe tower generation failed, possibly due to empty first layer.");
gcode += append_tcr(gcodegen, m_tool_changes[m_layer_idx][m_tool_change_idx++], extruder_id);
// Calculate where the wipe tower layer will be printed. -1 means that print z will not change,
// resulting in a wipe tower with sparse layers.
double wipe_tower_z = -1;
bool ignore_sparse = false;
if (gcodegen.config().wipe_tower_no_sparse_layers.value) {
wipe_tower_z = m_last_wipe_tower_print_z;
ignore_sparse = (m_brim_done && m_tool_changes[m_layer_idx].size() == 1 && m_tool_changes[m_layer_idx].front().initial_tool == m_tool_changes[m_layer_idx].front().new_tool);
if (m_tool_change_idx == 0 && ! ignore_sparse)
wipe_tower_z = m_last_wipe_tower_print_z + m_tool_changes[m_layer_idx].front().layer_height;
}
if (! ignore_sparse) {
gcode += append_tcr(gcodegen, m_tool_changes[m_layer_idx][m_tool_change_idx++], extruder_id, wipe_tower_z);
m_last_wipe_tower_print_z = wipe_tower_z;
}
}
m_brim_done = true;
}