Implemented an initial priming line for a single-material print

on a Prusa Multi-Material printer.
This commit is contained in:
bubnikv 2017-09-04 13:51:05 +02:00
parent 29d9a1e810
commit 2c5304a520
7 changed files with 38 additions and 11 deletions

View File

@ -219,6 +219,19 @@ std::string WipeTowerIntegration::prime(GCode &gcodegen)
return gcode;
}
std::string WipeTowerIntegration::prime_single_color_print(const Print & /* print */, unsigned int initial_tool, GCode & /* gcodegen */)
{
std::string gcode = "\
G1 Z0.250 F7200.000\n\
G1 X50.0 E80.0 F1000.0\n\
G1 X160.0 E20.0 F1000.0\n\
G1 Z0.200 F7200.000\n\
G1 X220.0 E13 F1000.0\n\
G1 X240.0 E0 F1000.0\n\
G1 E-4 F1000.0\n";
return gcode;
}
std::string WipeTowerIntegration::tool_change(GCode &gcodegen, int extruder_id, bool finish_layer)
{
std::string gcode;
@ -673,10 +686,12 @@ bool GCode::_do_export(Print &print, FILE *file)
// All extrusion moves with the same top layer height are extruded uninterrupted.
std::vector<std::pair<coordf_t, std::vector<LayerToPrint>>> layers_to_print = collect_layers_to_print(print);
// Prusa Multi-Material wipe tower.
if (print.has_wipe_tower() &&
! tool_ordering.empty() && tool_ordering.front().wipe_tower_partitions > 0) {
m_wipe_tower.reset(new WipeTowerIntegration(print.config, *print.m_wipe_tower_priming.get(), print.m_wipe_tower_tool_changes, *print.m_wipe_tower_final_purge.get()));
write(file, m_wipe_tower->prime(*this));
if (print.has_wipe_tower()) {
if (tool_ordering.has_wipe_tower()) {
m_wipe_tower.reset(new WipeTowerIntegration(print.config, *print.m_wipe_tower_priming.get(), print.m_wipe_tower_tool_changes, *print.m_wipe_tower_final_purge.get()));
write(file, m_wipe_tower->prime(*this));
} else
write(file, WipeTowerIntegration::prime_single_color_print(print, initial_extruder_id, *this));
}
// Extrude the layers.
for (auto &layer : layers_to_print) {

View File

@ -90,6 +90,7 @@ public:
m_brim_done(false) {}
std::string prime(GCode &gcodegen);
static std::string WipeTowerIntegration::prime_single_color_print(const Print & /* print */, unsigned int initial_tool, GCode & /* gcodegen */);
void next_layer() { ++ m_layer_idx; m_tool_change_idx = 0; }
std::string tool_change(GCode &gcodegen, int extruder_id, bool finish_layer);
std::string finalize(GCode &gcodegen);

View File

@ -121,7 +121,7 @@ void ToolOrdering::collect_extruders(const PrintObject &object)
LayerTools &layer_tools = this->tools_for_layer(layer->print_z);
// What extruders are required to print this object layer?
for (size_t region_id = 0; region_id < object.print()->regions.size(); ++ region_id) {
const LayerRegion *layerm = layer->regions[region_id];
const LayerRegion *layerm = (region_id < layer->regions.size()) ? layer->regions[region_id] : nullptr;
if (layerm == nullptr)
continue;
const PrintRegion &region = *object.print()->regions[region_id];

View File

@ -71,6 +71,7 @@ public:
const LayerTools& back() const { return m_layer_tools.back(); }
bool empty() const { return m_layer_tools.empty(); }
const std::vector<LayerTools>& layer_tools() const { return m_layer_tools; }
bool has_wipe_tower() const { return ! m_layer_tools.empty() && m_first_printing_extruder != (size_t)-1 && m_layer_tools.front().wipe_tower_partitions > 0; }
private:
void initialize_layers(std::vector<coordf_t> &zs);

View File

@ -388,7 +388,11 @@ WipeTower::ToolChangeResult WipeTowerPrusaMM::prime(float first_layer_height, st
this->m_num_layer_changes = 0;
this->m_current_tool = tools.front();
box_coordinates cleaning_box(xy(0.f, - 4.0f), m_wipe_tower_width, wipe_area);
// The Prusa i3 MK2 has a working space of [0, -2.2] to [250, 210].
// Due to the XYZ calibration, this working space may shrink slightly from all directions,
// therefore the homing position is shifted inside the bed by 0.2 in the firmware to [0.2, -2.0].
// box_coordinates cleaning_box(xy(0.5f, - 1.5f), m_wipe_tower_width, wipe_area);
box_coordinates cleaning_box(xy(5.f, 0.f), m_wipe_tower_width, wipe_area);
PrusaMultiMaterial::Writer writer;
writer.set_extrusion_flow(m_extrusion_flow)
@ -401,9 +405,10 @@ WipeTower::ToolChangeResult WipeTowerPrusaMM::prime(float first_layer_height, st
.speed_override(100);
// Always move to the starting position.
writer.travel(cleaning_box.ld, 7200);
writer.set_initial_position(xy(0.f, 0.f))
.travel(cleaning_box.ld, 7200)
// Increase the extruder driver current to allow fast ramming.
writer.set_extruder_trimpot(750);
.set_extruder_trimpot(750);
if (purpose == PURPOSE_EXTRUDE || purpose == PURPOSE_MOVE_TO_TOWER_AND_EXTRUDE) {
for (size_t idx_tool = 0; idx_tool < tools.size(); ++ idx_tool) {

View File

@ -971,7 +971,7 @@ void Print::_make_wipe_tower()
// Let the ToolOrdering class know there will be initial priming extrusions at the start of the print.
m_tool_ordering = ToolOrdering(*this, (unsigned int)-1, true);
unsigned int initial_extruder_id = m_tool_ordering.first_extruder();
if (initial_extruder_id == (unsigned int)-1 || m_tool_ordering.front().wipe_tower_partitions == 0)
if (! m_tool_ordering.has_wipe_tower())
// Don't generate any wipe tower.
return;

View File

@ -950,6 +950,9 @@ void _3DScene::_load_wipe_tower_toolpaths(
const std::vector<std::string> &tool_colors_str,
bool use_VBOs)
{
if (print->m_wipe_tower_tool_changes.empty())
return;
std::vector<float> tool_colors = parse_colors(tool_colors_str);
struct Ctxt
@ -978,8 +981,10 @@ void _3DScene::_load_wipe_tower_toolpaths(
ctxt.print = print;
ctxt.tool_colors = tool_colors.empty() ? nullptr : &tool_colors;
ctxt.priming.emplace_back(*print->m_wipe_tower_priming.get());
ctxt.final.emplace_back(*print->m_wipe_tower_final_purge.get());
if (print->m_wipe_tower_priming)
ctxt.priming.emplace_back(*print->m_wipe_tower_priming.get());
if (print->m_wipe_tower_final_purge)
ctxt.final.emplace_back(*print->m_wipe_tower_final_purge.get());
BOOST_LOG_TRIVIAL(debug) << "Loading wipe tower toolpaths in parallel - start";