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Prusa MM Wipe Tower, Improvements of the 1st layer:

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Thiner priming line along the wipe tower,
relatively thick infill at the 1st layer to improve adhesion.
This commit is contained in:
bubnikv 2017-07-20 12:58:51 +02:00
parent aaefb76888
commit 6bb773d0dd
1 changed files with 44 additions and 26 deletions
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70
xs/src/libslic3r/GCode/WipeTowerPrusaMM.cpp
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@ -498,7 +498,7 @@ WipeTower::ToolChangeResult WipeTowerPrusaMM::toolchange_Brim(Purpose purpose, b
";-------------------------------------\n"
"; CP WIPE TOWER FIRST LAYER BRIM START\n");
xy initial_position = wipeTower_box.lu - xy(m_perimeter_width * 10.f, 0);
xy initial_position = wipeTower_box.lu - xy(m_perimeter_width * 6.f, 0);
if (purpose == PURPOSE_MOVE_TO_TOWER || purpose == PURPOSE_MOVE_TO_TOWER_AND_EXTRUDE)
// Move with Z hop.
@ -510,7 +510,8 @@ WipeTower::ToolChangeResult WipeTowerPrusaMM::toolchange_Brim(Purpose purpose, b
if (purpose == PURPOSE_EXTRUDE || purpose == PURPOSE_MOVE_TO_TOWER_AND_EXTRUDE) {
// Prime the extruder 10*m_perimeter_width left along the vertical edge of the wipe tower.
writer.extrude_explicit(wipeTower_box.ld - xy(m_perimeter_width * 10.f, 0), m_retract, 2400);
writer.extrude_explicit(wipeTower_box.ld - xy(m_perimeter_width * 6.f, 0),
1.5f * m_extrusion_flow * (wipeTower_box.lu.y - wipeTower_box.ld.y), 2400);
// The tool is supposed to be active and primed at the time when the wipe tower brim is extruded.
// toolchange_Change(writer, int(tool), m_material[tool]);
@ -807,33 +808,50 @@ WipeTower::ToolChangeResult WipeTowerPrusaMM::finish_layer(Purpose purpose)
writer.extrude(box.lu, 3200 * speed_factor)
.extrude(box.ru)
.extrude(box.rd)
.extrude(box.ld + xy(m_perimeter_width / 2, 0))
.extrude(box.ld + xy(m_perimeter_width / 2, m_perimeter_width / 2));
.extrude(box.ld + xy(m_perimeter_width / 2, 0));
// Extrude an inverse U at the left of the region.
writer.extrude(fill_box.ld + xy(m_perimeter_width * 3, m_perimeter_width), 2900 * speed_factor)
.extrude(fill_box.lu + xy(m_perimeter_width * 3, - m_perimeter_width))
.extrude(fill_box.lu + xy(m_perimeter_width * 6, - m_perimeter_width))
.extrude(fill_box.ld + xy(m_perimeter_width * 6, m_perimeter_width));
if (fill_box.lu.y - fill_box.ld.y > 4.f) {
// Extrude three zig-zags.
float step = (m_wipe_tower_width - m_perimeter_width * 12.f) / 12.f;
for (size_t i = 0; i < 3; ++ i) {
writer.extrude(writer.x() + step, fill_box.ld.y + m_perimeter_width * 8, 3200 * speed_factor);
writer.extrude(writer.x() , fill_box.lu.y - m_perimeter_width * 8);
writer.extrude(writer.x() + step, fill_box.lu.y - m_perimeter_width );
writer.extrude(writer.x() + step, fill_box.lu.y - m_perimeter_width * 8);
writer.extrude(writer.x() , fill_box.ld.y + m_perimeter_width * 8);
writer.extrude(writer.x() + step, fill_box.ld.y + m_perimeter_width );
if (m_is_first_layer) {
// Extrude a dense infill at the 1st layer to improve 1st layer adhesion of the wipe tower.
box.expand(- m_perimeter_width / 2);
box.ld.y -= 0.5f * m_perimeter_width;
box.rd.y = box.ld.y;
int nsteps = int(floor((box.lu.y - box.ld.y) / (2. * (1.0 * m_perimeter_width))));
float step = (box.lu.y - box.ld.y) / nsteps;
for (size_t i = 0; i < nsteps; ++ i) {
writer.extrude(box.ld.x, writer.y() + 0.5f * step);
writer.extrude(box.rd.x, writer.y());
writer.extrude(box.rd.x, writer.y() + 0.5f * step);
writer.extrude(box.ld.x, writer.y());
}
}
} else {
// Extrude a sparse infill to support the material to be printed above.
// Extrude an inverse U at the left of the region.
writer.extrude(fill_box.ru + xy(- m_perimeter_width * 6, - m_perimeter_width), 2900 * speed_factor)
.extrude(fill_box.ru + xy(- m_perimeter_width * 3, - m_perimeter_width))
.extrude(fill_box.rd + xy(- m_perimeter_width * 3, m_perimeter_width))
.extrude(fill_box.rd + xy(- m_perimeter_width, m_perimeter_width));
// Extrude an inverse U at the left of the region.
writer.extrude(box.ld + xy(m_perimeter_width / 2, m_perimeter_width / 2))
.extrude(fill_box.ld + xy(m_perimeter_width * 3, m_perimeter_width), 2900 * speed_factor)
.extrude(fill_box.lu + xy(m_perimeter_width * 3, - m_perimeter_width))
.extrude(fill_box.lu + xy(m_perimeter_width * 6, - m_perimeter_width))
.extrude(fill_box.ld + xy(m_perimeter_width * 6, m_perimeter_width));
if (fill_box.lu.y - fill_box.ld.y > 4.f) {
// Extrude three zig-zags.
float step = (m_wipe_tower_width - m_perimeter_width * 12.f) / 12.f;
for (size_t i = 0; i < 3; ++ i) {
writer.extrude(writer.x() + step, fill_box.ld.y + m_perimeter_width * 8, 3200 * speed_factor);
writer.extrude(writer.x() , fill_box.lu.y - m_perimeter_width * 8);
writer.extrude(writer.x() + step, fill_box.lu.y - m_perimeter_width );
writer.extrude(writer.x() + step, fill_box.lu.y - m_perimeter_width * 8);
writer.extrude(writer.x() , fill_box.ld.y + m_perimeter_width * 8);
writer.extrude(writer.x() + step, fill_box.ld.y + m_perimeter_width );
}
}
// Extrude an inverse U at the left of the region.
writer.extrude(fill_box.ru + xy(- m_perimeter_width * 6, - m_perimeter_width), 2900 * speed_factor)
.extrude(fill_box.ru + xy(- m_perimeter_width * 3, - m_perimeter_width))
.extrude(fill_box.rd + xy(- m_perimeter_width * 3, m_perimeter_width))
.extrude(fill_box.rd + xy(- m_perimeter_width, m_perimeter_width));
}
if (purpose == PURPOSE_MOVE_TO_TOWER_AND_EXTRUDE)
// Wipe along the front side of the current wiping box.